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https://github.com/c64scene-ar/llvm-6502.git
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186f8d90df
This patch migrates the strchr and strrchr optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165875 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
612 B
LLVM
22 lines
612 B
LLVM
; Test that the strrchr libcall simplifier works correctly.
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;
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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@hello = constant [14 x i8] c"hello world\5Cn\00"
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@chr = global i8 zeroinitializer
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declare i8 @strrchr(i8*, i32)
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define void @test_nosimplify1() {
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; CHECK: test_nosimplify1
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; CHECK: call i8 @strrchr
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; CHECK: ret void
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%str = getelementptr [14 x i8]* @hello, i32 0, i32 0
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%dst = call i8 @strrchr(i8* %str, i32 119)
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store i8 %dst, i8* @chr
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ret void
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}
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