forked from OSchip/llvm-project
86 lines
2.0 KiB
LLVM
86 lines
2.0 KiB
LLVM
; RUN: opt < %s -gvn -S | FileCheck %s
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;
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%0 = type { i64, i1 }
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define i64 @test1(i64 %a, i64 %b) nounwind ssp {
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entry:
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%uadd = tail call %0 @llvm.uadd.with.overflow.i64(i64 %a, i64 %b)
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%uadd.0 = extractvalue %0 %uadd, 0
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%add1 = add i64 %a, %b
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ret i64 %add1
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}
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; CHECK-LABEL: @test1(
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; CHECK-NOT: add1
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; CHECK: ret
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define i64 @test2(i64 %a, i64 %b) nounwind ssp {
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entry:
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%usub = tail call %0 @llvm.usub.with.overflow.i64(i64 %a, i64 %b)
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%usub.0 = extractvalue %0 %usub, 0
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%sub1 = sub i64 %a, %b
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ret i64 %sub1
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}
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; CHECK-LABEL: @test2(
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; CHECK-NOT: sub1
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; CHECK: ret
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define i64 @test3(i64 %a, i64 %b) nounwind ssp {
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entry:
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%umul = tail call %0 @llvm.umul.with.overflow.i64(i64 %a, i64 %b)
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%umul.0 = extractvalue %0 %umul, 0
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%mul1 = mul i64 %a, %b
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ret i64 %mul1
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}
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; CHECK-LABEL: @test3(
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; CHECK-NOT: mul1
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; CHECK: ret
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define i64 @test4(i64 %a, i64 %b) nounwind ssp {
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entry:
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%sadd = tail call %0 @llvm.sadd.with.overflow.i64(i64 %a, i64 %b)
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%sadd.0 = extractvalue %0 %sadd, 0
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%add1 = add i64 %a, %b
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ret i64 %add1
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}
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; CHECK-LABEL: @test4(
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; CHECK-NOT: add1
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; CHECK: ret
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define i64 @test5(i64 %a, i64 %b) nounwind ssp {
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entry:
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%ssub = tail call %0 @llvm.ssub.with.overflow.i64(i64 %a, i64 %b)
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%ssub.0 = extractvalue %0 %ssub, 0
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%sub1 = sub i64 %a, %b
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ret i64 %sub1
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}
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; CHECK-LABEL: @test5(
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; CHECK-NOT: sub1
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; CHECK: ret
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define i64 @test6(i64 %a, i64 %b) nounwind ssp {
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entry:
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%smul = tail call %0 @llvm.smul.with.overflow.i64(i64 %a, i64 %b)
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%smul.0 = extractvalue %0 %smul, 0
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%mul1 = mul i64 %a, %b
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ret i64 %mul1
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}
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; CHECK-LABEL: @test6(
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; CHECK-NOT: mul1
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; CHECK: ret
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declare void @exit(i32) noreturn
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declare %0 @llvm.uadd.with.overflow.i64(i64, i64) nounwind readnone
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declare %0 @llvm.usub.with.overflow.i64(i64, i64) nounwind readnone
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declare %0 @llvm.umul.with.overflow.i64(i64, i64) nounwind readnone
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declare %0 @llvm.sadd.with.overflow.i64(i64, i64) nounwind readnone
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declare %0 @llvm.ssub.with.overflow.i64(i64, i64) nounwind readnone
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declare %0 @llvm.smul.with.overflow.i64(i64, i64) nounwind readnone
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