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3460b4a127
This commit copies existing tests at llvm/Transforms containing 'shufflevector X, undef' and replaces them with 'shufflevector X, poison'. The new copied tests have *-inseltpoison.ll suffix at its file name (as db7a2f347f132b3920415013d62d1adfb18d8d58 did) See https://reviews.llvm.org/D93793 Test files listed using grep -R -E "^[^;]*shufflevector <.*> .*, <.*> undef" | cut -d":" -f1 | uniq Test files copied & updated using file_org=llvm/test/Transforms/$1 if [[ "$file_org" = *-inseltpoison.ll ]]; then file=$file_org else file=${file_org%.ll}-inseltpoison.ll if [ ! -f $file ]; then cp $file_org $file fi fi sed -i -E 's/^([^;]*)shufflevector <(.*)> (.*), <(.*)> undef/\1shufflevector <\2> \3, <\4> poison/g' $file head -1 $file | grep "Assertions have been autogenerated by utils/update_test_checks.py" -q if [ "$?" == 1 ]; then echo "$file : should be manually updated" # The test is manually updated exit 1 fi python3 ./llvm/utils/update_test_checks.py --opt-binary=./build-releaseassert/bin/opt $file
143 lines
4.6 KiB
LLVM
143 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i32 @sub1(i32 %x) {
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; CHECK-LABEL: @sub1(
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; CHECK-NEXT: [[Y:%.*]] = sub i32 0, [[X:%.*]]
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; CHECK-NEXT: [[Z:%.*]] = sdiv i32 [[Y]], 337
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%y = sub i32 0, %x
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%z = sdiv i32 %y, 337
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ret i32 %z
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}
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define i32 @sub2(i32 %x) {
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; CHECK-LABEL: @sub2(
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; CHECK-NEXT: [[Z:%.*]] = sdiv i32 [[X:%.*]], -337
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; CHECK-NEXT: ret i32 [[Z]]
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;
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%y = sub nsw i32 0, %x
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%z = sdiv i32 %y, 337
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ret i32 %z
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}
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define i1 @shl_icmp(i64 %X) {
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; CHECK-LABEL: @shl_icmp(
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; CHECK-NEXT: [[B:%.*]] = icmp eq i64 [[X:%.*]], 0
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; CHECK-NEXT: ret i1 [[B]]
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;
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%A = shl nuw i64 %X, 2 ; X/4
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%B = icmp eq i64 %A, 0
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ret i1 %B
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}
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define i64 @shl1(i64 %X, i64* %P) {
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; CHECK-LABEL: @shl1(
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; CHECK-NEXT: [[A:%.*]] = and i64 [[X:%.*]], 312
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; CHECK-NEXT: store i64 [[A]], i64* [[P:%.*]], align 4
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; CHECK-NEXT: [[B:%.*]] = shl nuw nsw i64 [[A]], 8
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; CHECK-NEXT: ret i64 [[B]]
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;
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%A = and i64 %X, 312
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store i64 %A, i64* %P ; multiple uses of A.
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%B = shl i64 %A, 8
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ret i64 %B
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}
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define i32 @preserve1(i32 %x) {
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; CHECK-LABEL: @preserve1(
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; CHECK-NEXT: [[ADD3:%.*]] = add nsw i32 [[X:%.*]], 5
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; CHECK-NEXT: ret i32 [[ADD3]]
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;
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%add = add nsw i32 %x, 2
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%add3 = add nsw i32 %add, 3
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ret i32 %add3
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}
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define i8 @nopreserve1(i8 %x) {
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; CHECK-LABEL: @nopreserve1(
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; CHECK-NEXT: [[ADD3:%.*]] = add i8 [[X:%.*]], -126
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; CHECK-NEXT: ret i8 [[ADD3]]
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;
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%add = add nsw i8 %x, 127
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%add3 = add nsw i8 %add, 3
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ret i8 %add3
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}
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define i8 @nopreserve2(i8 %x) {
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; CHECK-LABEL: @nopreserve2(
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; CHECK-NEXT: [[ADD3:%.*]] = add i8 [[X:%.*]], 3
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; CHECK-NEXT: ret i8 [[ADD3]]
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;
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%add = add i8 %x, 1
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%add3 = add nsw i8 %add, 2
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ret i8 %add3
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}
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define i8 @nopreserve3(i8 %A, i8 %B) {
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; CHECK-LABEL: @nopreserve3(
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; CHECK-NEXT: [[Y:%.*]] = add i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[ADD:%.*]] = add i8 [[Y]], 20
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; CHECK-NEXT: ret i8 [[ADD]]
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;
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%x = add i8 %A, 10
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%y = add i8 %B, 10
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%add = add nsw i8 %x, %y
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ret i8 %add
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}
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define i8 @nopreserve4(i8 %A, i8 %B) {
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; CHECK-LABEL: @nopreserve4(
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; CHECK-NEXT: [[Y:%.*]] = add i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[ADD:%.*]] = add i8 [[Y]], 20
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; CHECK-NEXT: ret i8 [[ADD]]
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;
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%x = add nsw i8 %A, 10
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%y = add nsw i8 %B, 10
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%add = add nsw i8 %x, %y
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ret i8 %add
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}
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define <3 x i32> @shl_nuw_nsw_shuffle_splat_vec(<2 x i8> %x) {
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; CHECK-LABEL: @shl_nuw_nsw_shuffle_splat_vec(
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; CHECK-NEXT: [[T2:%.*]] = zext <2 x i8> [[X:%.*]] to <2 x i32>
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; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <2 x i32> [[T2]], <2 x i32> poison, <3 x i32> <i32 1, i32 0, i32 1>
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; CHECK-NEXT: [[T3:%.*]] = shl nuw nsw <3 x i32> [[SHUF]], <i32 17, i32 17, i32 17>
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; CHECK-NEXT: ret <3 x i32> [[T3]]
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;
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%t2 = zext <2 x i8> %x to <2 x i32>
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%shuf = shufflevector <2 x i32> %t2, <2 x i32> poison, <3 x i32> <i32 1, i32 0, i32 1>
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%t3 = shl <3 x i32> %shuf, <i32 17, i32 17, i32 17>
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ret <3 x i32> %t3
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}
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; Negative test - if the shuffle mask contains an undef, we bail out to
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; avoid propagating information that may not be used consistently by callers.
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define <3 x i32> @shl_nuw_nsw_shuffle_undef_elt_splat_vec(<2 x i8> %x) {
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; CHECK-LABEL: @shl_nuw_nsw_shuffle_undef_elt_splat_vec(
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; CHECK-NEXT: [[T2:%.*]] = zext <2 x i8> [[X:%.*]] to <2 x i32>
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; CHECK-NEXT: [[SHUF:%.*]] = shufflevector <2 x i32> [[T2]], <2 x i32> poison, <3 x i32> <i32 1, i32 undef, i32 0>
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; CHECK-NEXT: [[T3:%.*]] = shl <3 x i32> [[SHUF]], <i32 17, i32 17, i32 17>
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; CHECK-NEXT: ret <3 x i32> [[T3]]
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;
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%t2 = zext <2 x i8> %x to <2 x i32>
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%shuf = shufflevector <2 x i32> %t2, <2 x i32> poison, <3 x i32> <i32 1, i32 undef, i32 0>
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%t3 = shl <3 x i32> %shuf, <i32 17, i32 17, i32 17>
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ret <3 x i32> %t3
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}
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; Make sure we don't crash on a ConstantExpr shufflevector
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define <vscale x 2 x i64> @mul_nuw_nsw_shuffle_constant_expr(<vscale x 2 x i8> %z) {
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; CHECK-LABEL: @mul_nuw_nsw_shuffle_constant_expr(
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; CHECK-NEXT: [[XX:%.*]] = zext <vscale x 2 x i8> [[Z:%.*]] to <vscale x 2 x i64>
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; CHECK-NEXT: [[T3:%.*]] = mul <vscale x 2 x i64> [[XX]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 3, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer)
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; CHECK-NEXT: ret <vscale x 2 x i64> [[T3]]
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;
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%xx = zext <vscale x 2 x i8> %z to <vscale x 2 x i64>
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%shuf = shufflevector <vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 3, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer
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%t3 = mul <vscale x 2 x i64> %shuf, %xx
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ret <vscale x 2 x i64> %t3
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}
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