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llvm-project/llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll
Luke Lau 8d16c6809a [RISCV] Increase default vectorizer LMUL to 2 
After some discussion and experimentation, we have seen that changing the default number of vector register bits to LMUL=2 strikes a sweet spot.
Whilst we could be clever here and make the vectorizer smarter about dynamically selecting an LMUL that
a) Doesn't affect register pressure
b) Suitable for the microarchitecture
we would need to teach its heuristics about RISC-V register grouping specifics.
Instead this just does the easy, pragmatic thing by changing the default to a safe value that doesn't affect register pressure signifcantly[1], but should increase throughput and unlock more interleaving.

[1] Register spilling when compiling sqlite at various levels of `-riscv-v-register-bit-width-lmul`:

LMUL=1    2573 spills
LMUL=2    2583 spills
LMUL=4    2819 spills
LMUL=8    3256 spills

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D143723
2023-03-23 10:33:50 +00:00

1098 lines
67 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=on -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck %s
; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=off -riscv-v-vector-bits-min=-1 -mtriple riscv64-linux-gnu -mattr=+v,+f -S 2>%t | FileCheck --check-prefix=FIXED %s
; Tests specific to div/rem handling - both predicated and not
target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
target triple = "riscv64"
define void @vector_udiv(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @vector_udiv(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = udiv <vscale x 2 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: store <vscale x 2 x i64> [[TMP7]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP9:%.*]] = mul i64 [[TMP8]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], [[V]]
; CHECK-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @vector_udiv(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = udiv <4 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; FIXED-NEXT: [[TMP7:%.*]] = udiv <4 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT3]]
; FIXED-NEXT: store <4 x i64> [[TMP6]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[TMP7]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], [[V]]
; FIXED-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%divrem = udiv i64 %elem, %v
store i64 %divrem, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @vector_sdiv(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @vector_sdiv(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = sdiv <vscale x 2 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: store <vscale x 2 x i64> [[TMP7]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP9:%.*]] = mul i64 [[TMP8]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], [[V]]
; CHECK-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @vector_sdiv(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = sdiv <4 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; FIXED-NEXT: [[TMP7:%.*]] = sdiv <4 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT3]]
; FIXED-NEXT: store <4 x i64> [[TMP6]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[TMP7]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], [[V]]
; FIXED-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%divrem = sdiv i64 %elem, %v
store i64 %divrem, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @vector_urem(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @vector_urem(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = urem <vscale x 2 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: store <vscale x 2 x i64> [[TMP7]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP9:%.*]] = mul i64 [[TMP8]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[DIVREM:%.*]] = urem i64 [[ELEM]], [[V]]
; CHECK-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @vector_urem(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = urem <4 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; FIXED-NEXT: [[TMP7:%.*]] = urem <4 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT3]]
; FIXED-NEXT: store <4 x i64> [[TMP6]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[TMP7]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[DIVREM:%.*]] = urem i64 [[ELEM]], [[V]]
; FIXED-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%divrem = urem i64 %elem, %v
store i64 %divrem, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @vector_srem(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @vector_srem(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = srem <vscale x 2 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: store <vscale x 2 x i64> [[TMP7]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP9:%.*]] = mul i64 [[TMP8]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[DIVREM:%.*]] = srem i64 [[ELEM]], [[V]]
; CHECK-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @vector_srem(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = srem <4 x i64> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; FIXED-NEXT: [[TMP7:%.*]] = srem <4 x i64> [[WIDE_LOAD1]], [[BROADCAST_SPLAT3]]
; FIXED-NEXT: store <4 x i64> [[TMP6]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[TMP7]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[DIVREM:%.*]] = srem i64 [[ELEM]], [[V]]
; FIXED-NEXT: store i64 [[DIVREM]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%divrem = srem i64 %elem, %v
store i64 %divrem, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @predicated_udiv(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @predicated_udiv(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = icmp ne <vscale x 2 x i64> [[BROADCAST_SPLAT]], zeroinitializer
; CHECK-NEXT: [[TMP8:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[BROADCAST_SPLAT]], <vscale x 2 x i64> shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 1, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP9:%.*]] = udiv <vscale x 2 x i64> [[WIDE_LOAD]], [[TMP8]]
; CHECK-NEXT: [[TMP10:%.*]] = xor <vscale x 2 x i1> [[TMP7]], shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[PREDPHI:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[TMP9]], <vscale x 2 x i64> [[WIDE_LOAD]]
; CHECK-NEXT: store <vscale x 2 x i64> [[PREDPHI]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP12:%.*]] = mul i64 [[TMP11]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP12]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[C:%.*]] = icmp ne i64 [[V]], 0
; CHECK-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; CHECK: do_op:
; CHECK-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], [[V]]
; CHECK-NEXT: br label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; CHECK-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @predicated_udiv(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = icmp ne <4 x i64> [[BROADCAST_SPLAT]], zeroinitializer
; FIXED-NEXT: [[TMP7:%.*]] = icmp ne <4 x i64> [[BROADCAST_SPLAT3]], zeroinitializer
; FIXED-NEXT: [[TMP8:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[BROADCAST_SPLAT]], <4 x i64> <i64 1, i64 1, i64 1, i64 1>
; FIXED-NEXT: [[TMP9:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[BROADCAST_SPLAT3]], <4 x i64> <i64 1, i64 1, i64 1, i64 1>
; FIXED-NEXT: [[TMP10:%.*]] = udiv <4 x i64> [[WIDE_LOAD]], [[TMP8]]
; FIXED-NEXT: [[TMP11:%.*]] = udiv <4 x i64> [[WIDE_LOAD1]], [[TMP9]]
; FIXED-NEXT: [[TMP12:%.*]] = xor <4 x i1> [[TMP6]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[TMP13:%.*]] = xor <4 x i1> [[TMP7]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[TMP10]], <4 x i64> [[WIDE_LOAD]]
; FIXED-NEXT: [[PREDPHI4:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[TMP11]], <4 x i64> [[WIDE_LOAD1]]
; FIXED-NEXT: store <4 x i64> [[PREDPHI]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[PREDPHI4]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[C:%.*]] = icmp ne i64 [[V]], 0
; FIXED-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; FIXED: do_op:
; FIXED-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], [[V]]
; FIXED-NEXT: br label [[LATCH]]
; FIXED: latch:
; FIXED-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; FIXED-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %latch ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%c = icmp ne i64 %v, 0
br i1 %c, label %do_op, label %latch
do_op:
%divrem = udiv i64 %elem, %v
br label %latch
latch:
%phi = phi i64 [%elem, %for.body], [%divrem, %do_op]
store i64 %phi, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @predicated_sdiv(ptr noalias nocapture %a, i64 %v, i64 %n) {
; CHECK-LABEL: @predicated_sdiv(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 2 x i64> poison, i64 [[V:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 2 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = icmp ne <vscale x 2 x i64> [[BROADCAST_SPLAT]], zeroinitializer
; CHECK-NEXT: [[TMP8:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[BROADCAST_SPLAT]], <vscale x 2 x i64> shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 1, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP9:%.*]] = sdiv <vscale x 2 x i64> [[WIDE_LOAD]], [[TMP8]]
; CHECK-NEXT: [[TMP10:%.*]] = xor <vscale x 2 x i1> [[TMP7]], shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[PREDPHI:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[TMP9]], <vscale x 2 x i64> [[WIDE_LOAD]]
; CHECK-NEXT: store <vscale x 2 x i64> [[PREDPHI]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP12:%.*]] = mul i64 [[TMP11]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP12]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[C:%.*]] = icmp ne i64 [[V]], 0
; CHECK-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; CHECK: do_op:
; CHECK-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], [[V]]
; CHECK-NEXT: br label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; CHECK-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @predicated_sdiv(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[V:%.*]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x i64> poison, i64 [[V]], i64 0
; FIXED-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT2]], <4 x i64> poison, <4 x i32> zeroinitializer
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = icmp ne <4 x i64> [[BROADCAST_SPLAT]], zeroinitializer
; FIXED-NEXT: [[TMP7:%.*]] = icmp ne <4 x i64> [[BROADCAST_SPLAT3]], zeroinitializer
; FIXED-NEXT: [[TMP8:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[BROADCAST_SPLAT]], <4 x i64> <i64 1, i64 1, i64 1, i64 1>
; FIXED-NEXT: [[TMP9:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[BROADCAST_SPLAT3]], <4 x i64> <i64 1, i64 1, i64 1, i64 1>
; FIXED-NEXT: [[TMP10:%.*]] = sdiv <4 x i64> [[WIDE_LOAD]], [[TMP8]]
; FIXED-NEXT: [[TMP11:%.*]] = sdiv <4 x i64> [[WIDE_LOAD1]], [[TMP9]]
; FIXED-NEXT: [[TMP12:%.*]] = xor <4 x i1> [[TMP6]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[TMP13:%.*]] = xor <4 x i1> [[TMP7]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[TMP10]], <4 x i64> [[WIDE_LOAD]]
; FIXED-NEXT: [[PREDPHI4:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[TMP11]], <4 x i64> [[WIDE_LOAD1]]
; FIXED-NEXT: store <4 x i64> [[PREDPHI]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[PREDPHI4]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[C:%.*]] = icmp ne i64 [[V]], 0
; FIXED-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; FIXED: do_op:
; FIXED-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], [[V]]
; FIXED-NEXT: br label [[LATCH]]
; FIXED: latch:
; FIXED-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; FIXED-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %latch ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%c = icmp ne i64 %v, 0
br i1 %c, label %do_op, label %latch
do_op:
%divrem = sdiv i64 %elem, %v
br label %latch
latch:
%phi = phi i64 [%elem, %for.body], [%divrem, %do_op]
store i64 %phi, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @predicated_udiv_by_constant(ptr noalias nocapture %a, i64 %n) {
; CHECK-LABEL: @predicated_udiv_by_constant(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = icmp ne <vscale x 2 x i64> [[WIDE_LOAD]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 42, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP8:%.*]] = udiv <vscale x 2 x i64> [[WIDE_LOAD]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 27, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP9:%.*]] = xor <vscale x 2 x i1> [[TMP7]], shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[PREDPHI:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[TMP8]], <vscale x 2 x i64> [[WIDE_LOAD]]
; CHECK-NEXT: store <vscale x 2 x i64> [[PREDPHI]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[C:%.*]] = icmp ne i64 [[ELEM]], 42
; CHECK-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; CHECK: do_op:
; CHECK-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], 27
; CHECK-NEXT: br label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; CHECK-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @predicated_udiv_by_constant(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = icmp ne <4 x i64> [[WIDE_LOAD]], <i64 42, i64 42, i64 42, i64 42>
; FIXED-NEXT: [[TMP7:%.*]] = icmp ne <4 x i64> [[WIDE_LOAD1]], <i64 42, i64 42, i64 42, i64 42>
; FIXED-NEXT: [[TMP8:%.*]] = udiv <4 x i64> [[WIDE_LOAD]], <i64 27, i64 27, i64 27, i64 27>
; FIXED-NEXT: [[TMP9:%.*]] = udiv <4 x i64> [[WIDE_LOAD1]], <i64 27, i64 27, i64 27, i64 27>
; FIXED-NEXT: [[TMP10:%.*]] = xor <4 x i1> [[TMP6]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[TMP11:%.*]] = xor <4 x i1> [[TMP7]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[TMP8]], <4 x i64> [[WIDE_LOAD]]
; FIXED-NEXT: [[PREDPHI2:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[TMP9]], <4 x i64> [[WIDE_LOAD1]]
; FIXED-NEXT: store <4 x i64> [[PREDPHI]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[PREDPHI2]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[C:%.*]] = icmp ne i64 [[ELEM]], 42
; FIXED-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; FIXED: do_op:
; FIXED-NEXT: [[DIVREM:%.*]] = udiv i64 [[ELEM]], 27
; FIXED-NEXT: br label [[LATCH]]
; FIXED: latch:
; FIXED-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; FIXED-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %latch ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%c = icmp ne i64 %elem, 42
br i1 %c, label %do_op, label %latch
do_op:
%divrem = udiv i64 %elem, 27
br label %latch
latch:
%phi = phi i64 [%elem, %for.body], [%divrem, %do_op]
store i64 %phi, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @predicated_sdiv_by_constant(ptr noalias nocapture %a, i64 %n) {
; CHECK-LABEL: @predicated_sdiv_by_constant(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 2
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i64>, ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = icmp ne <vscale x 2 x i64> [[WIDE_LOAD]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 42, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP8:%.*]] = sdiv <vscale x 2 x i64> [[WIDE_LOAD]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 27, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP9:%.*]] = xor <vscale x 2 x i1> [[TMP7]], shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[PREDPHI:%.*]] = select <vscale x 2 x i1> [[TMP7]], <vscale x 2 x i64> [[TMP8]], <vscale x 2 x i64> [[WIDE_LOAD]]
; CHECK-NEXT: store <vscale x 2 x i64> [[PREDPHI]], ptr [[TMP6]], align 8
; CHECK-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[C:%.*]] = icmp ne i64 [[ELEM]], 42
; CHECK-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; CHECK: do_op:
; CHECK-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], 27
; CHECK-NEXT: br label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; CHECK-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @predicated_sdiv_by_constant(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 4
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP4]], align 8
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, ptr [[TMP2]], i32 4
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <4 x i64>, ptr [[TMP5]], align 8
; FIXED-NEXT: [[TMP6:%.*]] = icmp ne <4 x i64> [[WIDE_LOAD]], <i64 42, i64 42, i64 42, i64 42>
; FIXED-NEXT: [[TMP7:%.*]] = icmp ne <4 x i64> [[WIDE_LOAD1]], <i64 42, i64 42, i64 42, i64 42>
; FIXED-NEXT: [[TMP8:%.*]] = sdiv <4 x i64> [[WIDE_LOAD]], <i64 27, i64 27, i64 27, i64 27>
; FIXED-NEXT: [[TMP9:%.*]] = sdiv <4 x i64> [[WIDE_LOAD1]], <i64 27, i64 27, i64 27, i64 27>
; FIXED-NEXT: [[TMP10:%.*]] = xor <4 x i1> [[TMP6]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[TMP11:%.*]] = xor <4 x i1> [[TMP7]], <i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[TMP8]], <4 x i64> [[WIDE_LOAD]]
; FIXED-NEXT: [[PREDPHI2:%.*]] = select <4 x i1> [[TMP7]], <4 x i64> [[TMP9]], <4 x i64> [[WIDE_LOAD1]]
; FIXED-NEXT: store <4 x i64> [[PREDPHI]], ptr [[TMP4]], align 8
; FIXED-NEXT: store <4 x i64> [[PREDPHI2]], ptr [[TMP5]], align 8
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; FIXED-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP16:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i64, ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[C:%.*]] = icmp ne i64 [[ELEM]], 42
; FIXED-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; FIXED: do_op:
; FIXED-NEXT: [[DIVREM:%.*]] = sdiv i64 [[ELEM]], 27
; FIXED-NEXT: br label [[LATCH]]
; FIXED: latch:
; FIXED-NEXT: [[PHI:%.*]] = phi i64 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; FIXED-NEXT: store i64 [[PHI]], ptr [[ARRAYIDX]], align 8
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %latch ]
%arrayidx = getelementptr inbounds i64, ptr %a, i64 %iv
%elem = load i64, ptr %arrayidx
%c = icmp ne i64 %elem, 42
br i1 %c, label %do_op, label %latch
do_op:
%divrem = sdiv i64 %elem, 27
br label %latch
latch:
%phi = phi i64 [%elem, %for.body], [%divrem, %do_op]
store i64 %phi, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
define void @predicated_sdiv_by_minus_one(ptr noalias nocapture %a, i64 %n) {
; CHECK-LABEL: @predicated_sdiv_by_minus_one(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 16
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 16
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 16 x i8>, ptr [[TMP6]], align 1
; CHECK-NEXT: [[TMP7:%.*]] = icmp ne <vscale x 16 x i8> [[WIDE_LOAD]], shufflevector (<vscale x 16 x i8> insertelement (<vscale x 16 x i8> poison, i8 -128, i64 0), <vscale x 16 x i8> poison, <vscale x 16 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP8:%.*]] = select <vscale x 16 x i1> [[TMP7]], <vscale x 16 x i8> shufflevector (<vscale x 16 x i8> insertelement (<vscale x 16 x i8> poison, i8 -1, i64 0), <vscale x 16 x i8> poison, <vscale x 16 x i32> zeroinitializer), <vscale x 16 x i8> shufflevector (<vscale x 16 x i8> insertelement (<vscale x 16 x i8> poison, i8 1, i64 0), <vscale x 16 x i8> poison, <vscale x 16 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP9:%.*]] = sdiv <vscale x 16 x i8> [[WIDE_LOAD]], [[TMP8]]
; CHECK-NEXT: [[TMP10:%.*]] = xor <vscale x 16 x i1> [[TMP7]], shufflevector (<vscale x 16 x i1> insertelement (<vscale x 16 x i1> poison, i1 true, i64 0), <vscale x 16 x i1> poison, <vscale x 16 x i32> zeroinitializer)
; CHECK-NEXT: [[PREDPHI:%.*]] = select <vscale x 16 x i1> [[TMP7]], <vscale x 16 x i8> [[TMP9]], <vscale x 16 x i8> [[WIDE_LOAD]]
; CHECK-NEXT: store <vscale x 16 x i8> [[PREDPHI]], ptr [[TMP6]], align 1
; CHECK-NEXT: [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP12:%.*]] = mul i64 [[TMP11]], 16
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP12]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[ELEM:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[C:%.*]] = icmp ne i8 [[ELEM]], -128
; CHECK-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; CHECK: do_op:
; CHECK-NEXT: [[DIVREM:%.*]] = sdiv i8 [[ELEM]], -1
; CHECK-NEXT: br label [[LATCH]]
; CHECK: latch:
; CHECK-NEXT: [[PHI:%.*]] = phi i8 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; CHECK-NEXT: store i8 [[PHI]], ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; FIXED-LABEL: @predicated_sdiv_by_minus_one(
; FIXED-NEXT: entry:
; FIXED-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; FIXED: vector.ph:
; FIXED-NEXT: br label [[VECTOR_BODY:%.*]]
; FIXED: vector.body:
; FIXED-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; FIXED-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; FIXED-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 32
; FIXED-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[TMP0]]
; FIXED-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP1]]
; FIXED-NEXT: [[TMP4:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 0
; FIXED-NEXT: [[WIDE_LOAD:%.*]] = load <32 x i8>, ptr [[TMP4]], align 1
; FIXED-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP2]], i32 32
; FIXED-NEXT: [[WIDE_LOAD1:%.*]] = load <32 x i8>, ptr [[TMP5]], align 1
; FIXED-NEXT: [[TMP6:%.*]] = icmp ne <32 x i8> [[WIDE_LOAD]], <i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128>
; FIXED-NEXT: [[TMP7:%.*]] = icmp ne <32 x i8> [[WIDE_LOAD1]], <i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128, i8 -128>
; FIXED-NEXT: [[TMP8:%.*]] = select <32 x i1> [[TMP6]], <32 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, <32 x i8> <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
; FIXED-NEXT: [[TMP9:%.*]] = select <32 x i1> [[TMP7]], <32 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, <32 x i8> <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
; FIXED-NEXT: [[TMP10:%.*]] = sdiv <32 x i8> [[WIDE_LOAD]], [[TMP8]]
; FIXED-NEXT: [[TMP11:%.*]] = sdiv <32 x i8> [[WIDE_LOAD1]], [[TMP9]]
; FIXED-NEXT: [[TMP12:%.*]] = xor <32 x i1> [[TMP6]], <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[TMP13:%.*]] = xor <32 x i1> [[TMP7]], <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>
; FIXED-NEXT: [[PREDPHI:%.*]] = select <32 x i1> [[TMP6]], <32 x i8> [[TMP10]], <32 x i8> [[WIDE_LOAD]]
; FIXED-NEXT: [[PREDPHI2:%.*]] = select <32 x i1> [[TMP7]], <32 x i8> [[TMP11]], <32 x i8> [[WIDE_LOAD1]]
; FIXED-NEXT: store <32 x i8> [[PREDPHI]], ptr [[TMP4]], align 1
; FIXED-NEXT: store <32 x i8> [[PREDPHI2]], ptr [[TMP5]], align 1
; FIXED-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 64
; FIXED-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; FIXED-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]
; FIXED: middle.block:
; FIXED-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
; FIXED-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; FIXED: scalar.ph:
; FIXED-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; FIXED-NEXT: br label [[FOR_BODY:%.*]]
; FIXED: for.body:
; FIXED-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LATCH:%.*]] ]
; FIXED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IV]]
; FIXED-NEXT: [[ELEM:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; FIXED-NEXT: [[C:%.*]] = icmp ne i8 [[ELEM]], -128
; FIXED-NEXT: br i1 [[C]], label [[DO_OP:%.*]], label [[LATCH]]
; FIXED: do_op:
; FIXED-NEXT: [[DIVREM:%.*]] = sdiv i8 [[ELEM]], -1
; FIXED-NEXT: br label [[LATCH]]
; FIXED: latch:
; FIXED-NEXT: [[PHI:%.*]] = phi i8 [ [[ELEM]], [[FOR_BODY]] ], [ [[DIVREM]], [[DO_OP]] ]
; FIXED-NEXT: store i8 [[PHI]], ptr [[ARRAYIDX]], align 1
; FIXED-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; FIXED-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
; FIXED-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP19:![0-9]+]]
; FIXED: for.end:
; FIXED-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %latch ]
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %iv
%elem = load i8, ptr %arrayidx
%c = icmp ne i8 %elem, 128
br i1 %c, label %do_op, label %latch
do_op:
%divrem = sdiv i8 %elem, -1 ;; UB if %elem = INT_MIN
br label %latch
latch:
%phi = phi i8 [%elem, %for.body], [%divrem, %do_op]
store i8 %phi, ptr %arrayidx
%iv.next = add nuw nsw i64 %iv, 1
%exitcond.not = icmp eq i64 %iv.next, 1024
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret void
}
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