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26ebe398f2
This patch migrates the memset optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167689 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
575 B
LLVM
18 lines
575 B
LLVM
; Test that the memset library call 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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declare i8* @memset(i8*, i32, i32)
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; Check memset(mem1, val, size) -> llvm.memset(mem1, val, size, 1).
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define i8* @test_simplify1(i8* %mem, i32 %val, i32 %size) {
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; CHECK: @test_simplify1
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%ret = call i8* @memset(i8* %mem, i32 %val, i32 %size)
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; CHECK: call void @llvm.memset
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ret i8* %ret
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; CHECK: ret i8* %mem
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}
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