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llvm-project/llvm/test/Transforms/LoopVectorize/AArch64/partial-reduce-constant-ops.ll
Sam Tebbs 3396b4654b
[LV] Allow partial reductions with an extended bin op (#165536) 
A pattern of the form reduce.add(ext(mul)) is valid for a partial
reduction as long as the mul and its operands fulfill the requirements
of a normal partial reduction. The mul's extend operands will be
optimised to the wider extend, and we already have oneUse checks in
place to make sure the mul and operands can be modified safely.

1. -> https://github.com/llvm/llvm-project/pull/165536
2. https://github.com/llvm/llvm-project/pull/165543
2025-11-20 10:22:11 +00:00

470 lines
25 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
; RUN: opt --mattr=+neon,+dotprod -passes=loop-vectorize -force-vector-interleave=1 -enable-epilogue-vectorization=false -S %s | FileCheck %s
target triple = "arm64-apple-macosx"
define i32 @red_zext_mul_by_63(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_zext_mul_by_63(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 63)
; CHECK-NEXT: [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP4]])
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP6]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = zext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 63
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP6]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr.iv = phi ptr [ %start, %entry ], [ %gep.iv.next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
%l = load i8, ptr %ptr.iv, align 1
%l.ext = zext i8 %l to i32
%mul = mul i32 %l.ext, 63
%red.next = add i32 %red, %mul
%gep.iv.next = getelementptr i8, ptr %ptr.iv, i64 1
%ec = icmp eq ptr %ptr.iv, %end
br i1 %ec, label %exit, label %loop
exit:
ret i32 %red.next
}
define i32 @red_zext_mul_by_255(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_zext_mul_by_255(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 255)
; CHECK-NEXT: [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP4]])
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = zext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 255
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr.iv = phi ptr [ %start, %entry ], [ %gep.iv.next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
%l = load i8, ptr %ptr.iv, align 1
%l.ext = zext i8 %l to i32
%mul = mul i32 %l.ext, 255
%red.next = add i32 %red, %mul
%gep.iv.next = getelementptr i8, ptr %ptr.iv, i64 1
%ec = icmp eq ptr %ptr.iv, %end
br i1 %ec, label %exit, label %loop
exit:
ret i32 %red.next
}
define i32 @red_zext_mul_by_256(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_zext_mul_by_256(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = zext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 256)
; CHECK-NEXT: [[TMP5]] = add <16 x i32> [[VEC_PHI]], [[TMP4]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP5]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = zext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 256
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr.iv = phi ptr [ %start, %entry ], [ %gep.iv.next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
%l = load i8, ptr %ptr.iv, align 1
%l.ext = zext i8 %l to i32
%mul = mul i32 %l.ext, 256
%red.next = add i32 %red, %mul
%gep.iv.next = getelementptr i8, ptr %ptr.iv, i64 1
%ec = icmp eq ptr %ptr.iv, %end
br i1 %ec, label %exit, label %loop
exit:
ret i32 %red.next
}
define i32 @red_sext_mul_by_63(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_sext_mul_by_63(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[PARTIAL_REDUCE:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 63)
; CHECK-NEXT: [[PARTIAL_REDUCE]] = call <4 x i32> @llvm.vector.partial.reduce.add.v4i32.v16i32(<4 x i32> [[VEC_PHI]], <16 x i32> [[TMP4]])
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[PARTIAL_REDUCE]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP6]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = sext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 63
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP6]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr_iv = phi ptr [ %start, %entry ], [ %gep_iv_next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red_next, %loop ]
%l = load i8, ptr %ptr_iv, align 1
%l_ext = sext i8 %l to i32
%mul = mul i32 %l_ext, 63
%red_next = add i32 %red, %mul
%gep_iv_next = getelementptr i8, ptr %ptr_iv, i64 1
%ec = icmp eq ptr %ptr_iv, %end
br i1 %ec, label %exit, label %loop
exit:
%red_next_lcssa = phi i32 [ %red_next, %loop ]
ret i32 %red_next_lcssa
}
; Constants >= 128 cannot be treated as sign-extended.
define i32 @red_sext_mul_by_128(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_sext_mul_by_128(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 128)
; CHECK-NEXT: [[TMP5]] = add <16 x i32> [[VEC_PHI]], [[TMP4]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP5]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = sext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 128
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr_iv = phi ptr [ %start, %entry ], [ %gep_iv_next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red_next, %loop ]
%l = load i8, ptr %ptr_iv, align 1
%l_ext = sext i8 %l to i32
%mul = mul i32 %l_ext, 128
%red_next = add i32 %red, %mul
%gep_iv_next = getelementptr i8, ptr %ptr_iv, i64 1
%ec = icmp eq ptr %ptr_iv, %end
br i1 %ec, label %exit, label %loop
exit:
%red_next_lcssa = phi i32 [ %red_next, %loop ]
ret i32 %red_next_lcssa
}
define i32 @red_sext_mul_by_255(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_sext_mul_by_255(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 255)
; CHECK-NEXT: [[TMP5]] = add <16 x i32> [[VEC_PHI]], [[TMP4]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP5]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = sext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 255
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr.iv = phi ptr [ %start, %entry ], [ %gep.iv.next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
%l = load i8, ptr %ptr.iv, align 1
%l.ext = sext i8 %l to i32
%mul = mul i32 %l.ext, 255
%red.next = add i32 %red, %mul
%gep.iv.next = getelementptr i8, ptr %ptr.iv, i64 1
%ec = icmp eq ptr %ptr.iv, %end
br i1 %ec, label %exit, label %loop
exit:
ret i32 %red.next
}
define i32 @red_sext_mul_by_256(ptr %start, ptr %end) {
; CHECK-LABEL: define i32 @red_sext_mul_by_256(
; CHECK-SAME: ptr [[START:%.*]], ptr [[END:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START]] to i64
; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[END1]], 1
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[START2]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP1]], 16
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP1]], [[N_MOD_VF]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]]
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <16 x i32> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP5:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[NEXT_GEP]], align 1
; CHECK-NEXT: [[TMP3:%.*]] = sext <16 x i8> [[WIDE_LOAD]] to <16 x i32>
; CHECK-NEXT: [[TMP4:%.*]] = mul <16 x i32> [[TMP3]], splat (i32 256)
; CHECK-NEXT: [[TMP5]] = add <16 x i32> [[VEC_PHI]], [[TMP4]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[TMP7:%.*]] = call i32 @llvm.vector.reduce.add.v16i32(<16 x i32> [[TMP5]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP1]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP2]], %[[MIDDLE_BLOCK]] ], [ [[START]], %[[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP7]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[GEP_IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[RED:%.*]] = phi i32 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[RED_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[PTR_IV]], align 1
; CHECK-NEXT: [[L_EXT:%.*]] = sext i8 [[L]] to i32
; CHECK-NEXT: [[MUL:%.*]] = mul i32 [[L_EXT]], 256
; CHECK-NEXT: [[RED_NEXT]] = add i32 [[RED]], [[MUL]]
; CHECK-NEXT: [[GEP_IV_NEXT]] = getelementptr i8, ptr [[PTR_IV]], i64 1
; CHECK-NEXT: [[EC:%.*]] = icmp eq ptr [[PTR_IV]], [[END]]
; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP15:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: [[RED_NEXT_LCSSA:%.*]] = phi i32 [ [[RED_NEXT]], %[[LOOP]] ], [ [[TMP7]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[RED_NEXT_LCSSA]]
;
entry:
br label %loop
loop:
%ptr.iv = phi ptr [ %start, %entry ], [ %gep.iv.next, %loop ]
%red = phi i32 [ 0, %entry ], [ %red.next, %loop ]
%l = load i8, ptr %ptr.iv, align 1
%l.ext = sext i8 %l to i32
%mul = mul i32 %l.ext, 256
%red.next = add i32 %red, %mul
%gep.iv.next = getelementptr i8, ptr %ptr.iv, i64 1
%ec = icmp eq ptr %ptr.iv, %end
br i1 %ec, label %exit, label %loop
exit:
ret i32 %red.next
}
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