forked from OSchip/llvm-project
36 lines
957 B
LLVM
36 lines
957 B
LLVM
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; RUN: llc < %s -march=c
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; Check that uadd and sadd with overflow are handled by C Backend.
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%0 = type { i32, i1 } ; type %0
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define i1 @func1(i32 zeroext %v1, i32 zeroext %v2) nounwind {
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entry:
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%t = call %0 @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) ; <%0> [#uses=1]
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%obit = extractvalue %0 %t, 1 ; <i1> [#uses=1]
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br i1 %obit, label %carry, label %normal
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normal: ; preds = %entry
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ret i1 true
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carry: ; preds = %entry
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ret i1 false
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}
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define i1 @func2(i32 signext %v1, i32 signext %v2) nounwind {
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entry:
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%t = call %0 @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) ; <%0> [#uses=1]
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%obit = extractvalue %0 %t, 1 ; <i1> [#uses=1]
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br i1 %obit, label %carry, label %normal
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normal: ; preds = %entry
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ret i1 true
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carry: ; preds = %entry
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ret i1 false
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}
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declare %0 @llvm.sadd.with.overflow.i32(i32, i32) nounwind
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declare %0 @llvm.uadd.with.overflow.i32(i32, i32) nounwind
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