forked from OSchip/llvm-project
[InstCombine][NFC] Tests for canonicalization of unsigned multiply overflow check
llvm-svn: 366748
This commit is contained in:
Roman Lebedev
parent
6b248fca33
commit
77d37037f0
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@ -0,0 +1,172 @@
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; 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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; Fold
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; ((%x * %y) u/ %x) == %y
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; to
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; @llvm.umul.with.overflow(%x, %y) + extractvalue + not
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define i1 @t0_basic(i8 %x, i8 %y) {
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; CHECK-LABEL: @t0_basic(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
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; CHECK-LABEL: @t1_vec(
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; CHECK-NEXT: [[T0:%.*]] = mul <2 x i8> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv <2 x i8> [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq <2 x i8> [[T1]], [[Y]]
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%t0 = mul <2 x i8> %x, %y
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%t1 = udiv <2 x i8> %t0, %x
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%r = icmp eq <2 x i8> %t1, %y
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ret <2 x i1> %r
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}
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declare i8 @gen8()
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define i1 @t2_commutative(i8 %x) {
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; CHECK-LABEL: @t2_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define i1 @t3_commutative(i8 %x) {
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; CHECK-LABEL: @t3_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define i1 @t4_commutative(i8 %x) {
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; CHECK-LABEL: @t4_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[Y]], [[T1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %y, %t1 ; swapped
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ret i1 %r
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}
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; Extra-use tests
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declare void @use8(i8)
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define i1 @t5_extrause0(i8 %x, i8 %y) {
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; CHECK-LABEL: @t5_extrause0(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: call void @use8(i8 [[T0]])
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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call void @use8(i8 %t0)
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define i1 @t6_extrause1(i8 %x, i8 %y) {
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; CHECK-LABEL: @t6_extrause1(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: call void @use8(i8 [[T1]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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%t1 = udiv i8 %t0, %x
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call void @use8(i8 %t1)
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define i1 @t7_extrause2(i8 %x, i8 %y) {
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; CHECK-LABEL: @t7_extrause2(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: call void @use8(i8 [[T0]])
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: call void @use8(i8 [[T1]])
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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call void @use8(i8 %t0)
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%t1 = udiv i8 %t0, %x
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call void @use8(i8 %t1)
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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; Negative tests
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define i1 @n8_different_x(i8 %x0, i8 %x1, i8 %y) {
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; CHECK-LABEL: @n8_different_x(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X0:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X1:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x0, %y
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%t1 = udiv i8 %t0, %x1
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%r = icmp eq i8 %t1, %y
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ret i1 %r
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}
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define i1 @n9_different_y(i8 %x, i8 %y0, i8 %y1) {
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; CHECK-LABEL: @n9_different_y(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y0:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[T1]], [[Y1:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y0
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%t1 = udiv i8 %t0, %x
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%r = icmp eq i8 %t1, %y1
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ret i1 %r
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}
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define i1 @n10_wrong_pred(i8 %x, i8 %y) {
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; CHECK-LABEL: @n10_wrong_pred(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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%t1 = udiv i8 %t0, %x
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%r = icmp ult i8 %t1, %y
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ret i1 %r
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}
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@ -0,0 +1,107 @@
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; 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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; Fold
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; (-1 u/ %x) u>= %y
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; to
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; @llvm.umul.with.overflow(%x, %y) + extractvalue + not
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define i1 @t0_basic(i8 %x, i8 %y) {
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; CHECK-LABEL: @t0_basic(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -1, %x
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%r = icmp uge i8 %t0, %y
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ret i1 %r
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}
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define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
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; CHECK-LABEL: @t1_vec(
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; CHECK-NEXT: [[T0:%.*]] = udiv <2 x i8> <i8 -1, i8 -1>, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp uge <2 x i8> [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%t0 = udiv <2 x i8> <i8 -1, i8 -1>, %x
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%r = icmp uge <2 x i8> %t0, %y
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ret <2 x i1> %r
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}
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define <3 x i1> @t2_vec_undef(<3 x i8> %x, <3 x i8> %y) {
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; CHECK-LABEL: @t2_vec_undef(
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; CHECK-NEXT: [[T0:%.*]] = udiv <3 x i8> <i8 -1, i8 undef, i8 -1>, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp uge <3 x i8> [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret <3 x i1> [[R]]
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;
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%t0 = udiv <3 x i8> <i8 -1, i8 undef, i8 -1>, %x
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%r = icmp uge <3 x i8> %t0, %y
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ret <3 x i1> %r
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}
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declare i8 @gen8()
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define i1 @t3_commutative(i8 %x) {
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; CHECK-LABEL: @t3_commutative(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[Y]], [[T0]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -1, %x
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%y = call i8 @gen8()
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%r = icmp ult i8 %y, %t0 ; swapped
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ret i1 %r
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}
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; Negative tests
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declare void @use8(i8)
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define i1 @n4_extrause(i8 %x, i8 %y) {
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; CHECK-LABEL: @n4_extrause(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
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; CHECK-NEXT: call void @use8(i8 [[T0]])
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; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -1, %x
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call void @use8(i8 %t0)
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%r = icmp uge i8 %t0, %y
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ret i1 %r
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}
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define i1 @n5_not_negone(i8 %x, i8 %y) {
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; CHECK-LABEL: @n5_not_negone(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -2, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -2, %x ; not -1
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%r = icmp uge i8 %t0, %y
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ret i1 %r
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}
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define i1 @n6_wrong_pred0(i8 %x, i8 %y) {
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; CHECK-LABEL: @n6_wrong_pred0(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp ule i8 [[T0]], [[Y:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -1, %x
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%r = icmp ule i8 %t0, %y
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ret i1 %r
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}
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define i1 @n6_wrong_pred1(i8 %x) {
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; CHECK-LABEL: @n6_wrong_pred1(
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; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[Y]], [[T0]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = udiv i8 -1, %x
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%y = call i8 @gen8()
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%r = icmp ugt i8 %y, %t0 ; swapped
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ret i1 %r
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}
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@ -0,0 +1,172 @@
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; 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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; Fold
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; ((%x * %y) u/ %x) != %y
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; to
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; @llvm.umul.with.overflow(%x, %y) + extractvalue
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define i1 @t0_basic(i8 %x, i8 %y) {
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; CHECK-LABEL: @t0_basic(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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%t1 = udiv i8 %t0, %x
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%r = icmp ne i8 %t1, %y
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ret i1 %r
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}
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define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
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; CHECK-LABEL: @t1_vec(
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; CHECK-NEXT: [[T0:%.*]] = mul <2 x i8> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv <2 x i8> [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne <2 x i8> [[T1]], [[Y]]
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; CHECK-NEXT: ret <2 x i1> [[R]]
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;
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%t0 = mul <2 x i8> %x, %y
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%t1 = udiv <2 x i8> %t0, %x
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%r = icmp ne <2 x i8> %t1, %y
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ret <2 x i1> %r
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}
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declare i8 @gen8()
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define i1 @t2_commutative(i8 %x) {
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; CHECK-LABEL: @t2_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp ne i8 %t1, %y
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ret i1 %r
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}
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define i1 @t3_commutative(i8 %x) {
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; CHECK-LABEL: @t3_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp ne i8 %t1, %y
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ret i1 %r
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}
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define i1 @t4_commutative(i8 %x) {
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; CHECK-LABEL: @t4_commutative(
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; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[Y]], [[X:%.*]]
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[Y]], [[T1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = call i8 @gen8()
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%t0 = mul i8 %y, %x ; swapped
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%t1 = udiv i8 %t0, %x
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%r = icmp ne i8 %y, %t1 ; swapped
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ret i1 %r
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}
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; Extra-use tests
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declare void @use8(i8)
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define i1 @t5_extrause0(i8 %x, i8 %y) {
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; CHECK-LABEL: @t5_extrause0(
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; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: call void @use8(i8 [[T0]])
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; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%t0 = mul i8 %x, %y
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call void @use8(i8 %t0)
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%t1 = udiv i8 %t0, %x
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%r = icmp ne i8 %t1, %y
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ret i1 %r
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}
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||||
|
||||
define i1 @t6_extrause1(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @t6_extrause1(
|
||||
; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
|
||||
; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
|
||||
; CHECK-NEXT: call void @use8(i8 [[T1]])
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = mul i8 %x, %y
|
||||
%t1 = udiv i8 %t0, %x
|
||||
call void @use8(i8 %t1)
|
||||
%r = icmp ne i8 %t1, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @t7_extrause2(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @t7_extrause2(
|
||||
; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
|
||||
; CHECK-NEXT: call void @use8(i8 [[T0]])
|
||||
; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
|
||||
; CHECK-NEXT: call void @use8(i8 [[T1]])
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = mul i8 %x, %y
|
||||
call void @use8(i8 %t0)
|
||||
%t1 = udiv i8 %t0, %x
|
||||
call void @use8(i8 %t1)
|
||||
%r = icmp ne i8 %t1, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
; Negative tests
|
||||
|
||||
define i1 @n8_different_x(i8 %x0, i8 %x1, i8 %y) {
|
||||
; CHECK-LABEL: @n8_different_x(
|
||||
; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X0:%.*]], [[Y:%.*]]
|
||||
; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X1:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = mul i8 %x0, %y
|
||||
%t1 = udiv i8 %t0, %x1
|
||||
%r = icmp ne i8 %t1, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @n9_different_y(i8 %x, i8 %y0, i8 %y1) {
|
||||
; CHECK-LABEL: @n9_different_y(
|
||||
; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y0:%.*]]
|
||||
; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[T1]], [[Y1:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = mul i8 %x, %y0
|
||||
%t1 = udiv i8 %t0, %x
|
||||
%r = icmp ne i8 %t1, %y1
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @n10_wrong_pred(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @n10_wrong_pred(
|
||||
; CHECK-NEXT: [[T0:%.*]] = mul i8 [[X:%.*]], [[Y:%.*]]
|
||||
; CHECK-NEXT: [[T1:%.*]] = udiv i8 [[T0]], [[X]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[T1]], [[Y]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = mul i8 %x, %y
|
||||
%t1 = udiv i8 %t0, %x
|
||||
%r = icmp ugt i8 %t1, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
|
@ -0,0 +1,105 @@
|
|||
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
||||
; RUN: opt %s -instcombine -S | FileCheck %s
|
||||
|
||||
; Fold
|
||||
; (-1 u/ %x) u< %y
|
||||
; to
|
||||
; @llvm.umul.with.overflow(%x, %y) + extractvalue
|
||||
|
||||
define i1 @t0_basic(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @t0_basic(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -1, %x
|
||||
%r = icmp ult i8 %t0, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
|
||||
; CHECK-LABEL: @t1_vec(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv <2 x i8> <i8 -1, i8 -1>, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ult <2 x i8> [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret <2 x i1> [[R]]
|
||||
;
|
||||
%t0 = udiv <2 x i8> <i8 -1, i8 -1>, %x
|
||||
%r = icmp ult <2 x i8> %t0, %y
|
||||
ret <2 x i1> %r
|
||||
}
|
||||
|
||||
define <3 x i1> @t2_vec_undef(<3 x i8> %x, <3 x i8> %y) {
|
||||
; CHECK-LABEL: @t2_vec_undef(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv <3 x i8> <i8 -1, i8 undef, i8 -1>, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ult <3 x i8> [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret <3 x i1> [[R]]
|
||||
;
|
||||
%t0 = udiv <3 x i8> <i8 -1, i8 undef, i8 -1>, %x
|
||||
%r = icmp ult <3 x i8> %t0, %y
|
||||
ret <3 x i1> %r
|
||||
}
|
||||
|
||||
declare i8 @gen8()
|
||||
|
||||
define i1 @t3_commutative(i8 %x) {
|
||||
; CHECK-LABEL: @t3_commutative(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
|
||||
; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[Y]], [[T0]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -1, %x
|
||||
%y = call i8 @gen8()
|
||||
%r = icmp uge i8 %y, %t0 ; swapped
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
; Negative tests
|
||||
|
||||
declare void @use8(i8)
|
||||
|
||||
define i1 @n4_extrause(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @n4_extrause(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
|
||||
; CHECK-NEXT: call void @use8(i8 [[T0]])
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -1, %x
|
||||
call void @use8(i8 %t0)
|
||||
%r = icmp ult i8 %t0, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @n5_not_negone(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @n5_not_negone(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -2, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -2, %x ; not -1
|
||||
%r = icmp ult i8 %t0, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @n6_wrong_pred0(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @n6_wrong_pred0(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ule i8 [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -1, %x
|
||||
%r = icmp ule i8 %t0, %y
|
||||
ret i1 %r
|
||||
}
|
||||
|
||||
define i1 @n6_wrong_pred1(i8 %x, i8 %y) {
|
||||
; CHECK-LABEL: @n6_wrong_pred1(
|
||||
; CHECK-NEXT: [[T0:%.*]] = udiv i8 -1, [[X:%.*]]
|
||||
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[T0]], [[Y:%.*]]
|
||||
; CHECK-NEXT: ret i1 [[R]]
|
||||
;
|
||||
%t0 = udiv i8 -1, %x
|
||||
%r = icmp ugt i8 %t0, %y
|
||||
ret i1 %r
|
||||
}
|
||||
Loading…
Reference in New Issue