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- Index: test/Transforms/InstCombine/intrinsics.ll
- ===================================================================
- --- test/Transforms/InstCombine/intrinsics.ll (revision 90007)
- +++ test/Transforms/InstCombine/intrinsics.ll (working copy)
- @@ -1,12 +1,79 @@
- ; RUN: opt %s -instcombine -S | FileCheck %s
- -declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8)
- +%overflow.result = type {i8, i1}
- +declare %overflow.result @llvm.uadd.with.overflow.i8(i8, i8)
- +declare %overflow.result @llvm.umul.with.overflow.i8(i8, i8)
- +
- define i8 @test1(i8 %A, i8 %B) {
- - %x = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
- - %y = extractvalue {i8, i1} %x, 0
- + %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
- + %y = extractvalue %overflow.result %x, 0
- ret i8 %y
- ; CHECK: @test1
- ; CHECK-NEXT: %y = add i8 %A, %B
- ; CHECK-NEXT: ret i8 %y
- }
- +
- +define i8 @test2(i8 %A, i8 %B, i1* %overflowPtr) {
- + %and.A = and i8 %A, 127
- + %and.B = and i8 %B, 127
- + %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %and.A, i8 %and.B)
- + %y = extractvalue %overflow.result %x, 0
- + %z = extractvalue %overflow.result %x, 1
- + store i1 %z, i1* %overflowPtr
- + ret i8 %y
- +; CHECK: @test2
- +; CHECK-NEXT: %and.A = and i8 %A, 127
- +; CHECK-NEXT: %and.B = and i8 %B, 127
- +; CHECK-NEXT: %1 = add nuw i8 %and.A, %and.B
- +; CHECK-NEXT: store i1 false, i1* %overflowPtr
- +; CHECK-NEXT: ret i8 %1
- +}
- +
- +define i8 @test3(i8 %A, i8 %B, i1* %overflowPtr) {
- + %or.A = or i8 %A, -128
- + %or.B = or i8 %B, -128
- + %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %or.A, i8 %or.B)
- + %y = extractvalue %overflow.result %x, 0
- + %z = extractvalue %overflow.result %x, 1
- + store i1 %z, i1* %overflowPtr
- + ret i8 %y
- +; CHECK: @test3
- +; CHECK-NEXT: %or.A = or i8 %A, -128
- +; CHECK-NEXT: %or.B = or i8 %B, -128
- +; CHECK-NEXT: %1 = add i8 %or.A, %or.B
- +; CHECK-NEXT: store i1 true, i1* %overflowPtr
- +; CHECK-NEXT: ret i8 %1
- +}
- +
- +define i8 @test4(i8 %A, i1* %overflowPtr) {
- + %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 undef, i8 %A)
- + %y = extractvalue %overflow.result %x, 0
- + %z = extractvalue %overflow.result %x, 1
- + store i1 %z, i1* %overflowPtr
- + ret i8 %y
- +; CHECK: @test4
- +; CHECK-NEXT: ret i8 undef
- +}
- +
- +define i8 @test5(i8 %A, i1* %overflowPtr) {
- + %x = call %overflow.result @llvm.umul.with.overflow.i8(i8 0, i8 %A)
- + %y = extractvalue %overflow.result %x, 0
- + %z = extractvalue %overflow.result %x, 1
- + store i1 %z, i1* %overflowPtr
- + ret i8 %y
- +; CHECK: @test5
- +; CHECK-NEXT: store i1 false, i1* %overflowPtr
- +; CHECK-NEXT: ret i8 0
- +}
- +
- +define i8 @test6(i8 %A, i1* %overflowPtr) {
- + %x = call %overflow.result @llvm.umul.with.overflow.i8(i8 1, i8 %A)
- + %y = extractvalue %overflow.result %x, 0
- + %z = extractvalue %overflow.result %x, 1
- + store i1 %z, i1* %overflowPtr
- + ret i8 %y
- +; CHECK: @test6
- +; CHECK-NEXT: store i1 false, i1* %overflowPtr
- +; CHECK-NEXT: ret i8 %A
- +}
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