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https://github.com/c64scene-ar/llvm-6502.git
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93d88192a2
Summary: `ComputeNumSignBits` returns incorrect results for `srem` instructions. This change fixes the issue and adds a test case. Reviewers: nadav, nicholas, atrick Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8600 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233225 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
469 B
LLVM
16 lines
469 B
LLVM
; RUN: opt -indvars -S < %s | FileCheck %s
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declare { i8, i1 } @llvm.smul.with.overflow.i8(i8, i8) nounwind readnone
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define i1 @test1(i8 %x) {
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entry:
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; CHECK-LABEL: @test1
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%rem = srem i8 %x, 15
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%t = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %rem, i8 %rem)
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; CHECK: %t = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %rem, i8 %rem)
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; CHECK: %obit = extractvalue { i8, i1 } %t, 1
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; CHECK: ret i1 %obit
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%obit = extractvalue { i8, i1 } %t, 1
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ret i1 %obit
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}
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