forked from OSchip/llvm-project
346 lines
12 KiB
LLVM
346 lines
12 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; and enhanced to include metadata checking.
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i32 @foo(i32) local_unnamed_addr #0 {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 %0, 2
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; CHECK-NEXT: [[DOTV:%.*]] = select i1 [[TMP2]], i32 20, i32 -20, !prof ![[$MD1:[0-9]+]]
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; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[DOTV]], %0
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; CHECK-NEXT: ret i32 [[TMP3]]
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;
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%2 = icmp sgt i32 %0, 2
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%3 = add nsw i32 %0, 20
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%4 = add i32 %0, -20
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select i1 %2, i32 %3, i32 %4, !prof !1
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ret i32 %5
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}
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define i8 @shrink_select(i1 %cond, i32 %x) {
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; CHECK-LABEL: @shrink_select(
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; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 %x to i8
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; CHECK-NEXT: [[TRUNC:%.*]] = select i1 %cond, i8 [[TMP1]], i8 42, !prof ![[$MD1]]
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; CHECK-NEXT: ret i8 [[TRUNC]]
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;
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%sel = select i1 %cond, i32 %x, i32 42, !prof !1
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%trunc = trunc i32 %sel to i8
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ret i8 %trunc
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}
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define void @min_max_bitcast(<4 x float> %a, <4 x float> %b, <4 x i32>* %ptr1, <4 x i32>* %ptr2) {
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; CHECK-LABEL: @min_max_bitcast(
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; CHECK-NEXT: [[CMP:%.*]] = fcmp olt <4 x float> %a, %b
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; CHECK-NEXT: [[SEL1_V:%.*]] = select <4 x i1> [[CMP]], <4 x float> %a, <4 x float> %b, !prof ![[$MD1]]
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; CHECK-NEXT: [[SEL2_V:%.*]] = select <4 x i1> [[CMP]], <4 x float> %b, <4 x float> %a, !prof ![[$MD1]]
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast <4 x i32>* %ptr1 to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[SEL1_V]], <4 x float>* [[TMP1]], align 16
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast <4 x i32>* %ptr2 to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[SEL2_V]], <4 x float>* [[TMP2]], align 16
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; CHECK-NEXT: ret void
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;
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%cmp = fcmp olt <4 x float> %a, %b
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%bc1 = bitcast <4 x float> %a to <4 x i32>
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%bc2 = bitcast <4 x float> %b to <4 x i32>
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%sel1 = select <4 x i1> %cmp, <4 x i32> %bc1, <4 x i32> %bc2, !prof !1
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%sel2 = select <4 x i1> %cmp, <4 x i32> %bc2, <4 x i32> %bc1, !prof !1
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store <4 x i32> %sel1, <4 x i32>* %ptr1
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store <4 x i32> %sel2, <4 x i32>* %ptr2
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ret void
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}
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define i32 @foo2(i32, i32) local_unnamed_addr #0 {
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; CHECK-LABEL: @foo2(
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; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 %0, 2
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; CHECK-NEXT: [[TMP4:%.*]] = sub i32 0, %1
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; CHECK-NEXT: [[DOTP:%.*]] = select i1 [[TMP3]], i32 %1, i32 [[TMP4]], !prof ![[$MD1]]
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; CHECK-NEXT: [[TMP5:%.*]] = add i32 [[DOTP]], %0
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; CHECK-NEXT: ret i32 [[TMP5]]
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;
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%3 = icmp sgt i32 %0, 2
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%4 = add nsw i32 %0, %1
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%5 = sub nsw i32 %0, %1
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select i1 %3, i32 %4, i32 %5, !prof !1
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ret i32 %6
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}
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define i64 @test43(i32 %a) nounwind {
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; CHECK-LABEL: @test43(
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; CHECK-NEXT: [[A_EXT:%.*]] = sext i32 %a to i64
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i64 [[A_EXT]], 0
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; CHECK-NEXT: [[MAX:%.*]] = select i1 [[TMP1]], i64 [[A_EXT]], i64 0, !prof ![[$MD1]]
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; CHECK-NEXT: ret i64 [[MAX]]
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;
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%a_ext = sext i32 %a to i64
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%is_a_nonnegative = icmp sgt i32 %a, -1
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%max = select i1 %is_a_nonnegative, i64 %a_ext, i64 0, !prof !1
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ret i64 %max
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}
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define <2 x i32> @scalar_select_of_vectors_sext(<2 x i1> %cca, i1 %ccb) {
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; CHECK-LABEL: @scalar_select_of_vectors_sext(
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; CHECK-NEXT: [[NARROW:%.*]] = select i1 %ccb, <2 x i1> %cca, <2 x i1> zeroinitializer, !prof ![[$MD1]]
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; CHECK-NEXT: [[R:%.*]] = sext <2 x i1> [[NARROW]] to <2 x i32>
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%ccax = sext <2 x i1> %cca to <2 x i32>
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%r = select i1 %ccb, <2 x i32> %ccax, <2 x i32> <i32 0, i32 0>, !prof !1
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ret <2 x i32> %r
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}
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define i16 @t7(i32 %a) {
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; CHECK-LABEL: @t7(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %a, -32768
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 %a, i32 -32768, !prof ![[$MD1]]
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; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[TMP2]] to i16
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; CHECK-NEXT: ret i16 [[TMP3]]
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;
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%1 = icmp slt i32 %a, -32768
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%2 = trunc i32 %a to i16
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%3 = select i1 %1, i16 %2, i16 -32768, !prof !1
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ret i16 %3
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}
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define i32 @abs_nabs_x01(i32 %x) {
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; CHECK-LABEL: @abs_nabs_x01(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 %x, 0
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; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 0, %x
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; CHECK-NEXT: [[COND1:%.*]] = select i1 [[CMP]], i32 [[SUB]], i32 %x, !prof ![[$MD3:[0-9]+]]
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; CHECK-NEXT: ret i32 [[COND1]]
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;
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%cmp = icmp sgt i32 %x, -1
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%sub = sub nsw i32 0, %x
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%cond = select i1 %cmp, i32 %sub, i32 %x, !prof !1
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%cmp1 = icmp sgt i32 %cond, -1
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%sub16 = sub nsw i32 0, %cond
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%cond18 = select i1 %cmp1, i32 %cond, i32 %sub16, !prof !2
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ret i32 %cond18
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}
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; Swap predicate / metadata order
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define <2 x i32> @abs_nabs_x01_vec(<2 x i32> %x) {
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; CHECK-LABEL: @abs_nabs_x01_vec(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i32> %x, zeroinitializer
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; CHECK-NEXT: [[SUB:%.*]] = sub nsw <2 x i32> zeroinitializer, %x
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; CHECK-NEXT: [[COND1:%.*]] = select <2 x i1> [[CMP]], <2 x i32> [[SUB]], <2 x i32> %x, !prof ![[$MD3]]
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; CHECK-NEXT: ret <2 x i32> [[COND1]]
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;
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%cmp = icmp sgt <2 x i32> %x, <i32 -1, i32 -1>
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%sub = sub nsw <2 x i32> zeroinitializer, %x
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%cond = select <2 x i1> %cmp, <2 x i32> %sub, <2 x i32> %x, !prof !1
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%cmp1 = icmp sgt <2 x i32> %cond, <i32 -1, i32 -1>
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%sub16 = sub nsw <2 x i32> zeroinitializer, %cond
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%cond18 = select <2 x i1> %cmp1, <2 x i32> %cond, <2 x i32> %sub16, !prof !2
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ret <2 x i32> %cond18
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}
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; SMAX(SMAX(x, y), x) -> SMAX(x, y)
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define i32 @test30(i32 %x, i32 %y) {
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; CHECK-LABEL: @test30(
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 %x, %y
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], i32 %x, i32 %y, !prof ![[$MD1]]
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; CHECK-NEXT: ret i32 [[COND]]
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;
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%cmp = icmp sgt i32 %x, %y
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%cond = select i1 %cmp, i32 %x, i32 %y, !prof !1
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%cmp5 = icmp sgt i32 %cond, %x
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%retval = select i1 %cmp5, i32 %cond, i32 %x, !prof !2
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ret i32 %retval
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}
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; SMAX(SMAX(75, X), 36) -> SMAX(X, 75)
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define i32 @test70(i32 %x) {
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; CHECK-LABEL: @test70(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 %x, 75
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; CHECK-NEXT: [[COND:%.*]] = select i1 [[TMP1]], i32 %x, i32 75, !prof ![[$MD3]]
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; CHECK-NEXT: ret i32 [[COND]]
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;
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%cmp = icmp slt i32 %x, 75
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%cond = select i1 %cmp, i32 75, i32 %x, !prof !1
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%cmp3 = icmp slt i32 %cond, 36
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%retval = select i1 %cmp3, i32 36, i32 %cond, !prof !2
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ret i32 %retval
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}
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; Swap predicate / metadata order
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; SMIN(SMIN(X, 92), 11) -> SMIN(X, 11)
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define i32 @test72(i32 %x) {
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; CHECK-LABEL: @test72(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 %x, 11
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; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 11, !prof ![[$MD4:[0-9]+]]
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; CHECK-NEXT: ret i32 [[RETVAL]]
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;
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%cmp = icmp sgt i32 %x, 92
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%cond = select i1 %cmp, i32 92, i32 %x, !prof !1
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%cmp3 = icmp sgt i32 %cond, 11
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%retval = select i1 %cmp3, i32 11, i32 %cond, !prof !2
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ret i32 %retval
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}
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; Swap predicate / metadata order
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; SMAX(SMAX(X, 36), 75) -> SMAX(X, 75)
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define i32 @test74(i32 %x) {
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; CHECK-LABEL: @test74(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 %x, 75
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; CHECK-NEXT: [[RETVAL:%.*]] = select i1 [[TMP1]], i32 %x, i32 75, !prof ![[$MD4]]
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; CHECK-NEXT: ret i32 [[RETVAL]]
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;
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%cmp = icmp slt i32 %x, 36
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%cond = select i1 %cmp, i32 36, i32 %x, !prof !1
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%cmp3 = icmp slt i32 %cond, 75
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%retval = select i1 %cmp3, i32 75, i32 %cond, !prof !2
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ret i32 %retval
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}
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; The xor is moved after the select. The metadata remains the same because the select operands are not swapped only inverted.
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define i32 @smin1(i32 %x) {
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; CHECK-LABEL: @smin1(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[X:%.*]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 0, !prof ![[$MD1]]
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; CHECK-NEXT: [[SEL:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%not_x = xor i32 %x, -1
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%cmp = icmp sgt i32 %x, 0
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%sel = select i1 %cmp, i32 %not_x, i32 -1, !prof !1
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ret i32 %sel
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}
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; The compare should change, and the metadata is swapped because the select operands are swapped and inverted.
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define i32 @smin2(i32 %x) {
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; CHECK-LABEL: @smin2(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[X:%.*]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 0, !prof ![[$MD3]]
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; CHECK-NEXT: [[SEL:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%not_x = xor i32 %x, -1
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%cmp = icmp slt i32 %x, 0
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%sel = select i1 %cmp, i32 -1, i32 %not_x, !prof !1
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ret i32 %sel
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}
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; The xor is moved after the select. The metadata remains the same because the select operands are not swapped only inverted.
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define i32 @smax1(i32 %x) {
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; CHECK-LABEL: @smax1(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 0, !prof ![[$MD1]]
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; CHECK-NEXT: [[SEL:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%not_x = xor i32 %x, -1
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%cmp = icmp slt i32 %x, 0
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%sel = select i1 %cmp, i32 %not_x, i32 -1, !prof !1
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ret i32 %sel
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}
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; The compare should change, and the metadata is swapped because the select operands are swapped and inverted.
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define i32 @smax2(i32 %x) {
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; CHECK-LABEL: @smax2(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], 0
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; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 0, !prof ![[$MD3]]
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; CHECK-NEXT: [[SEL:%.*]] = xor i32 [[TMP2]], -1
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%not_x = xor i32 %x, -1
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%cmp = icmp sgt i32 %x, 0
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%sel = select i1 %cmp, i32 -1, i32 %not_x, !prof !1
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ret i32 %sel
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}
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; The compare should change, but the metadata remains the same because the select operands are not swapped.
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define i32 @umin1(i32 %x) {
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; CHECK-LABEL: @umin1(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 %x, -2147483648
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 -2147483648, !prof ![[$MD1]]
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%cmp = icmp sgt i32 %x, -1
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%sel = select i1 %cmp, i32 %x, i32 -2147483648, !prof !1
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ret i32 %sel
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}
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; The compare should change, and the metadata is swapped because the select operands are swapped.
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define i32 @umin2(i32 %x) {
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; CHECK-LABEL: @umin2(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 %x, 2147483647
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 2147483647, !prof ![[$MD3]]
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; CHECK-NEXT: ret i32 [[SEL]]
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;
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%cmp = icmp slt i32 %x, 0
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%sel = select i1 %cmp, i32 2147483647, i32 %x, !prof !1
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ret i32 %sel
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}
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; The compare should change, but the metadata remains the same because the select operands are not swapped.
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define i32 @umax1(i32 %x) {
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; CHECK-LABEL: @umax1(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 %x, 2147483647
|
||
|
|
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 2147483647, !prof ![[$MD1]]
|
||
|
|
; CHECK-NEXT: ret i32 [[SEL]]
|
||
|
|
;
|
||
|
|
%cmp = icmp slt i32 %x, 0
|
||
|
|
%sel = select i1 %cmp, i32 %x, i32 2147483647, !prof !1
|
||
|
|
ret i32 %sel
|
||
|
|
}
|
||
|
|
|
||
|
|
; The compare should change, and the metadata is swapped because the select operands are swapped.
|
||
|
|
define i32 @umax2(i32 %x) {
|
||
|
|
; CHECK-LABEL: @umax2(
|
||
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 %x, -2147483648
|
||
|
|
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 %x, i32 -2147483648, !prof ![[$MD3]]
|
||
|
|
; CHECK-NEXT: ret i32 [[SEL]]
|
||
|
|
;
|
||
|
|
%cmp = icmp sgt i32 %x, -1
|
||
|
|
%sel = select i1 %cmp, i32 -2147483648, i32 %x, !prof !1
|
||
|
|
ret i32 %sel
|
||
|
|
}
|
||
|
|
|
||
|
|
; The condition is inverted, and the select ops are swapped. The metadata should be swapped.
|
||
|
|
|
||
|
|
define i32 @not_cond(i1 %c, i32 %tv, i32 %fv) {
|
||
|
|
; CHECK-LABEL: @not_cond(
|
||
|
|
; CHECK-NEXT: [[R:%.*]] = select i1 [[C:%.*]], i32 [[FV:%.*]], i32 [[TV:%.*]], !prof ![[$MD3]]
|
||
|
|
; CHECK-NEXT: ret i32 [[R]]
|
||
|
|
;
|
||
|
|
%notc = xor i1 %c, true
|
||
|
|
%r = select i1 %notc, i32 %tv, i32 %fv, !prof !1
|
||
|
|
ret i32 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
; The condition is inverted, and the select ops are swapped. The metadata should be swapped.
|
||
|
|
|
||
|
|
define <2 x i32> @not_cond_vec(<2 x i1> %c, <2 x i32> %tv, <2 x i32> %fv) {
|
||
|
|
; CHECK-LABEL: @not_cond_vec(
|
||
|
|
; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[C:%.*]], <2 x i32> [[FV:%.*]], <2 x i32> [[TV:%.*]], !prof ![[$MD3]]
|
||
|
|
; CHECK-NEXT: ret <2 x i32> [[R]]
|
||
|
|
;
|
||
|
|
%notc = xor <2 x i1> %c, <i1 true, i1 true>
|
||
|
|
%r = select <2 x i1> %notc, <2 x i32> %tv, <2 x i32> %fv, !prof !1
|
||
|
|
ret <2 x i32> %r
|
||
|
|
}
|
||
|
|
|
||
|
|
; Should match vector 'not' with undef element.
|
||
|
|
; The condition is inverted, and the select ops are swapped. The metadata should be swapped.
|
||
|
|
|
||
|
|
define <2 x i32> @not_cond_vec_undef(<2 x i1> %c, <2 x i32> %tv, <2 x i32> %fv) {
|
||
|
|
; CHECK-LABEL: @not_cond_vec_undef(
|
||
|
|
; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[C:%.*]], <2 x i32> [[FV:%.*]], <2 x i32> [[TV:%.*]], !prof ![[$MD3]]
|
||
|
|
; CHECK-NEXT: ret <2 x i32> [[R]]
|
||
|
|
;
|
||
|
|
%notc = xor <2 x i1> %c, <i1 undef, i1 true>
|
||
|
|
%r = select <2 x i1> %notc, <2 x i32> %tv, <2 x i32> %fv, !prof !1
|
||
|
|
ret <2 x i32> %r
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
!1 = !{!"branch_weights", i32 2, i32 10}
|
||
|
|
!2 = !{!"branch_weights", i32 3, i32 10}
|
||
|
|
|
||
|
|
; CHECK-DAG: ![[$MD1]] = !{!"branch_weights", i32 2, i32 10}
|
||
|
|
; CHECK-DAG: ![[$MD3]] = !{!"branch_weights", i32 10, i32 2}
|
||
|
|
; CHECK-DAG: ![[$MD4]] = !{!"branch_weights", i32 10, i32 3}
|
||
|
|
|