llvm-project/llvm/test/Transforms/LoopVectorize/scev-exit-phi-invalidation.ll
Florian Hahn 0678e20583
[VPlan] Update scalar induction resume values in VPlan. (#110577)
Updated ILV.createInductionResumeValues (now createInductionResumeVPValue)
to directly update the VPIRInstructions wrapping the original phis with the 
created resume values.

This is the first step towards modeling them completely in VPlan.
Subsequent patches will move creation of the resume values completely
into VPlan.

Depends on https://github.com/llvm/llvm-project/pull/109975.

PR: https://github.com/llvm/llvm-project/pull/110577
2024-12-06 12:26:19 +00:00

119 lines
6.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
; RUN: opt -passes='loop(loop-deletion),loop-vectorize' -force-vector-width=4 -force-vector-interleave=1 -S %s | FileCheck %s
; Note: loop-deletion is needed to populate SCEV block dispositions.
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
define void @test_pr63368(i1 %c, ptr %A) {
; CHECK-LABEL: define void @test_pr63368
; CHECK-SAME: (i1 [[C:%.*]], ptr [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[INDEX_NEXT]], 100
; CHECK-NEXT: br i1 [[TMP1]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: br i1 true, label [[EXIT_1:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 100, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: br label [[LOOP_1_HEADER:%.*]]
; CHECK: loop.1.header:
; CHECK-NEXT: [[IV_1:%.*]] = phi i32 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_1_NEXT:%.*]], [[LOOP_1_LATCH:%.*]] ]
; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT: br i1 [[C]], label [[LOOP_1_LATCH]], label [[LOOP_1_LATCH]]
; CHECK: loop.1.latch:
; CHECK-NEXT: [[L_LCSSA:%.*]] = phi i32 [ [[L]], [[LOOP_1_HEADER]] ], [ [[L]], [[LOOP_1_HEADER]] ]
; CHECK-NEXT: [[IV_1_NEXT]] = add nuw nsw i32 [[IV_1]], 1
; CHECK-NEXT: [[EC_1:%.*]] = icmp eq i32 [[IV_1_NEXT]], 100
; CHECK-NEXT: br i1 [[EC_1]], label [[EXIT_1]], label [[LOOP_1_HEADER]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK: exit.1:
; CHECK-NEXT: [[L_LCSSA_LCSSA:%.*]] = phi i32 [ [[L_LCSSA]], [[LOOP_1_LATCH]] ], [ [[TMP0]], [[MIDDLE_BLOCK]] ]
; CHECK-NEXT: [[SMAX1:%.*]] = call i32 @llvm.smax.i32(i32 [[L_LCSSA_LCSSA]], i32 -1)
; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[SMAX1]], 2
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH3:%.*]], label [[VECTOR_SCEVCHECK:%.*]]
; CHECK: vector.scevcheck:
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[L_LCSSA_LCSSA]], i32 -1)
; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[SMAX]], 1
; CHECK-NEXT: [[TMP4:%.*]] = trunc i32 [[TMP3]] to i8
; CHECK-NEXT: [[TMP5:%.*]] = icmp slt i8 [[TMP4]], 0
; CHECK-NEXT: [[TMP6:%.*]] = icmp ugt i32 [[TMP3]], 255
; CHECK-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]]
; CHECK-NEXT: [[TMP8:%.*]] = trunc i32 [[TMP3]] to i8
; CHECK-NEXT: [[TMP9:%.*]] = add i8 1, [[TMP8]]
; CHECK-NEXT: [[TMP10:%.*]] = icmp slt i8 [[TMP9]], 1
; CHECK-NEXT: [[TMP11:%.*]] = icmp ugt i32 [[TMP3]], 255
; CHECK-NEXT: [[TMP12:%.*]] = or i1 [[TMP10]], [[TMP11]]
; CHECK-NEXT: [[TMP13:%.*]] = or i1 [[TMP7]], [[TMP12]]
; CHECK-NEXT: br i1 [[TMP13]], label [[SCALAR_PH3]], label [[VECTOR_PH4:%.*]]
; CHECK: vector.ph4:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]
; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i8
; CHECK-NEXT: br label [[VECTOR_BODY5:%.*]]
; CHECK: vector.body5:
; CHECK-NEXT: [[INDEX8:%.*]] = phi i32 [ 0, [[VECTOR_PH4]] ], [ [[INDEX_NEXT9:%.*]], [[VECTOR_BODY5]] ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX8]] to i8
; CHECK-NEXT: [[TMP14:%.*]] = add i8 [[OFFSET_IDX]], 0
; CHECK-NEXT: [[TMP15:%.*]] = add i8 [[TMP14]], 1
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[A]], i8 [[TMP15]]
; CHECK-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[TMP16]], i32 0
; CHECK-NEXT: store <4 x i8> zeroinitializer, ptr [[TMP17]], align 1
; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i32 [[INDEX8]], 4
; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i32 [[INDEX_NEXT9]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK2:%.*]], label [[VECTOR_BODY5]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: middle.block2:
; CHECK-NEXT: [[CMP_N6:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N6]], label [[EXIT_2:%.*]], label [[SCALAR_PH3]]
; CHECK: scalar.ph3:
; CHECK-NEXT: [[BC_RESUME_VAL5:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK2]] ], [ 0, [[EXIT_1]] ], [ 0, [[VECTOR_SCEVCHECK]] ]
; CHECK-NEXT: br label [[LOOP_2:%.*]]
; CHECK: loop.2:
; CHECK-NEXT: [[IV_2:%.*]] = phi i8 [ [[BC_RESUME_VAL5]], [[SCALAR_PH3]] ], [ [[IV_2_NEXT:%.*]], [[LOOP_2]] ]
; CHECK-NEXT: [[IV_2_NEXT]] = add i8 [[IV_2]], 1
; CHECK-NEXT: [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i8 [[IV_2_NEXT]]
; CHECK-NEXT: store i8 0, ptr [[GEP_A]], align 1
; CHECK-NEXT: [[IV_2_SEXT:%.*]] = sext i8 [[IV_2]] to i32
; CHECK-NEXT: [[EC_2:%.*]] = icmp sge i32 [[L_LCSSA_LCSSA]], [[IV_2_SEXT]]
; CHECK-NEXT: br i1 [[EC_2]], label [[LOOP_2]], label [[EXIT_2]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: exit.2:
; CHECK-NEXT: ret void
;
entry:
br label %loop.1.header
loop.1.header:
%iv.1 = phi i32 [ 0, %entry ], [ %iv.1.next, %loop.1.latch ]
%l = load i32, ptr %A
br i1 %c, label %loop.1.latch, label %loop.1.latch
loop.1.latch:
%l.lcssa = phi i32 [ %l, %loop.1.header ], [ %l, %loop.1.header ]
%iv.1.next = add nuw nsw i32 %iv.1, 1
%ec.1 = icmp eq i32 %iv.1.next, 100
br i1 %ec.1, label %exit.1, label %loop.1.header
exit.1:
%l.lcssa.lcssa = phi i32 [ %l.lcssa, %loop.1.latch ]
br label %loop.2
loop.2:
%iv.2 = phi i8 [ 0, %exit.1 ], [ %iv.2.next, %loop.2 ]
%iv.2.next = add i8 %iv.2, 1
%gep.A = getelementptr i8, ptr %A, i8 %iv.2.next
store i8 0, ptr %gep.A
%iv.2.sext = sext i8 %iv.2 to i32
%ec.2 = icmp sge i32 %l.lcssa.lcssa, %iv.2.sext
br i1 %ec.2, label %loop.2, label %exit.2
exit.2:
ret void
}