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-rw-r--r--llvm/test/Transforms/InstCombine/icmp-xor-signbit.ll219
1 files changed, 0 insertions, 219 deletions
diff --git a/llvm/test/Transforms/InstCombine/icmp-xor-signbit.ll b/llvm/test/Transforms/InstCombine/icmp-xor-signbit.ll
deleted file mode 100644
index dab9b5e9fef..00000000000
--- a/llvm/test/Transforms/InstCombine/icmp-xor-signbit.ll
+++ /dev/null
@@ -1,219 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -instcombine -S | FileCheck %s
-
-; icmp u/s (a ^ signmask), (b ^ signmask) --> icmp s/u a, b
-
-define i1 @slt_to_ult(i8 %x, i8 %y) {
-; CHECK-LABEL: @slt_to_ult(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 %x, %y
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 128
- %b = xor i8 %y, 128
- %cmp = icmp slt i8 %a, %b
- ret i1 %cmp
-}
-
-; PR33138 - https://bugs.llvm.org/show_bug.cgi?id=33138
-
-define <2 x i1> @slt_to_ult_splat(<2 x i8> %x, <2 x i8> %y) {
-; CHECK-LABEL: @slt_to_ult_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> %x, %y
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 128, i8 128>
- %b = xor <2 x i8> %y, <i8 128, i8 128>
- %cmp = icmp slt <2 x i8> %a, %b
- ret <2 x i1> %cmp
-}
-
-; Make sure that unsigned -> signed works too.
-
-define i1 @ult_to_slt(i8 %x, i8 %y) {
-; CHECK-LABEL: @ult_to_slt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 %x, %y
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 128
- %b = xor i8 %y, 128
- %cmp = icmp ult i8 %a, %b
- ret i1 %cmp
-}
-
-define <2 x i1> @ult_to_slt_splat(<2 x i8> %x, <2 x i8> %y) {
-; CHECK-LABEL: @ult_to_slt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %x, %y
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 128, i8 128>
- %b = xor <2 x i8> %y, <i8 128, i8 128>
- %cmp = icmp ult <2 x i8> %a, %b
- ret <2 x i1> %cmp
-}
-
-; icmp u/s (a ^ maxsignval), (b ^ maxsignval) --> icmp s/u' a, b
-
-define i1 @slt_to_ugt(i8 %x, i8 %y) {
-; CHECK-LABEL: @slt_to_ugt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 %x, %y
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 127
- %b = xor i8 %y, 127
- %cmp = icmp slt i8 %a, %b
- ret i1 %cmp
-}
-
-define <2 x i1> @slt_to_ugt_splat(<2 x i8> %x, <2 x i8> %y) {
-; CHECK-LABEL: @slt_to_ugt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> %x, %y
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 127, i8 127>
- %b = xor <2 x i8> %y, <i8 127, i8 127>
- %cmp = icmp slt <2 x i8> %a, %b
- ret <2 x i1> %cmp
-}
-
-; Make sure that unsigned -> signed works too.
-
-define i1 @ult_to_sgt(i8 %x, i8 %y) {
-; CHECK-LABEL: @ult_to_sgt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 %x, %y
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 127
- %b = xor i8 %y, 127
- %cmp = icmp ult i8 %a, %b
- ret i1 %cmp
-}
-
-define <2 x i1> @ult_to_sgt_splat(<2 x i8> %x, <2 x i8> %y) {
-; CHECK-LABEL: @ult_to_sgt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> %x, %y
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 127, i8 127>
- %b = xor <2 x i8> %y, <i8 127, i8 127>
- %cmp = icmp ult <2 x i8> %a, %b
- ret <2 x i1> %cmp
-}
-
-; icmp u/s (a ^ signmask), C --> icmp s/u a, C'
-
-define i1 @sge_to_ugt(i8 %x) {
-; CHECK-LABEL: @sge_to_ugt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 %x, -114
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 128
- %cmp = icmp sge i8 %a, 15
- ret i1 %cmp
-}
-
-define <2 x i1> @sge_to_ugt_splat(<2 x i8> %x) {
-; CHECK-LABEL: @sge_to_ugt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> %x, <i8 -114, i8 -114>
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 128, i8 128>
- %cmp = icmp sge <2 x i8> %a, <i8 15, i8 15>
- ret <2 x i1> %cmp
-}
-
-; Make sure that unsigned -> signed works too.
-
-define i1 @uge_to_sgt(i8 %x) {
-; CHECK-LABEL: @uge_to_sgt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 %x, -114
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 128
- %cmp = icmp uge i8 %a, 15
- ret i1 %cmp
-}
-
-define <2 x i1> @uge_to_sgt_splat(<2 x i8> %x) {
-; CHECK-LABEL: @uge_to_sgt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> %x, <i8 -114, i8 -114>
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 128, i8 128>
- %cmp = icmp uge <2 x i8> %a, <i8 15, i8 15>
- ret <2 x i1> %cmp
-}
-
-; icmp u/s (a ^ maxsignval), C --> icmp s/u' a, C'
-
-define i1 @sge_to_ult(i8 %x) {
-; CHECK-LABEL: @sge_to_ult(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 %x, 113
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 127
- %cmp = icmp sge i8 %a, 15
- ret i1 %cmp
-}
-
-define <2 x i1> @sge_to_ult_splat(<2 x i8> %x) {
-; CHECK-LABEL: @sge_to_ult_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> %x, <i8 113, i8 113>
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 127, i8 127>
- %cmp = icmp sge <2 x i8> %a, <i8 15, i8 15>
- ret <2 x i1> %cmp
-}
-
-; Make sure that unsigned -> signed works too.
-
-define i1 @uge_to_slt(i8 %x) {
-; CHECK-LABEL: @uge_to_slt(
-; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 %x, 113
-; CHECK-NEXT: ret i1 [[CMP]]
-;
- %a = xor i8 %x, 127
- %cmp = icmp uge i8 %a, 15
- ret i1 %cmp
-}
-
-define <2 x i1> @uge_to_slt_splat(<2 x i8> %x) {
-; CHECK-LABEL: @uge_to_slt_splat(
-; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %x, <i8 113, i8 113>
-; CHECK-NEXT: ret <2 x i1> [[CMP]]
-;
- %a = xor <2 x i8> %x, <i8 127, i8 127>
- %cmp = icmp uge <2 x i8> %a, <i8 15, i8 15>
- ret <2 x i1> %cmp
-}
-
-; PR33138, part 2: https://bugs.llvm.org/show_bug.cgi?id=33138
-; Bitcast canonicalization ensures that we recognize the signbit constant.
-
-define <8 x i1> @sgt_to_ugt_bitcasted_splat(<2 x i32> %x, <2 x i32> %y) {
-; CHECK-LABEL: @sgt_to_ugt_bitcasted_splat(
-; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i32> %x to <8 x i8>
-; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i32> %y to <8 x i8>
-; CHECK-NEXT: [[E:%.*]] = icmp ugt <8 x i8> [[TMP1]], [[TMP2]]
-; CHECK-NEXT: ret <8 x i1> [[E]]
-;
- %a = xor <2 x i32> %x, <i32 2155905152, i32 2155905152> ; 0x80808080
- %b = xor <2 x i32> %y, <i32 2155905152, i32 2155905152>
- %c = bitcast <2 x i32> %a to <8 x i8>
- %d = bitcast <2 x i32> %b to <8 x i8>
- %e = icmp sgt <8 x i8> %c, %d
- ret <8 x i1> %e
-}
-
-; Bitcast canonicalization ensures that we recognize the signbit constant.
-
-define <2 x i1> @negative_simplify_splat(<4 x i8> %x) {
-; CHECK-LABEL: @negative_simplify_splat(
-; CHECK-NEXT: ret <2 x i1> zeroinitializer
-;
- %a = or <4 x i8> %x, <i8 0, i8 128, i8 0, i8 128>
- %b = bitcast <4 x i8> %a to <2 x i16>
- %c = icmp sgt <2 x i16> %b, zeroinitializer
- ret <2 x i1> %c
-}
-
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