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54 lines
1.0 KiB
LLVM
54 lines
1.0 KiB
LLVM
; RUN: opt < %s -constprop -S | FileCheck %s
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%i8i1 = type {i8, i1}
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;;-----------------------------
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;; uadd
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;;-----------------------------
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define {i8, i1} @uadd_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 42, i8 100)
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ret {i8, i1} %t
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; CHECK: @uadd_1
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; CHECK: ret %i8i1 { i8 -114, i1 false }
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}
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define {i8, i1} @uadd_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 142, i8 120)
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ret {i8, i1} %t
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; CHECK: @uadd_2
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; CHECK: ret %i8i1 { i8 6, i1 true }
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}
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;;-----------------------------
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;; usub
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;;-----------------------------
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define {i8, i1} @usub_1() nounwind {
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entry:
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%t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 2)
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ret {i8, i1} %t
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; CHECK: @usub_1
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; CHECK: ret %i8i1 { i8 2, i1 false }
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}
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define {i8, i1} @usub_2() nounwind {
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entry:
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%t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 6)
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ret {i8, i1} %t
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; CHECK: @usub_2
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; CHECK: ret %i8i1 { i8 -2, i1 true }
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}
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declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8)
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declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8)
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