25 lines
648 B
LLVM
25 lines
648 B
LLVM
; RUN: llc < %s -mtriple=x86_64-- -O0 | FileCheck %s
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; Make sure fast-isel doesn't reset the materialised constant map
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; across an intrinsic call.
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; CHECK: movl $100000
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; CHECK-NOT: movl $100000
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define i1 @test1(i32 %v1, i32 %v2, i32* %X) nounwind {
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entry:
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%a = shl i32 100000, %v1
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%t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %v2)
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%ext = extractvalue {i32, i1} %t, 0
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%sum = shl i32 100000, %ext
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%obit = extractvalue {i32, i1} %t, 1
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br i1 %obit, label %overflow, label %normal
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normal:
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store i32 %sum, i32* %X
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br label %overflow
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overflow:
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ret i1 false
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}
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declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
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