llvm-6502/test/Transforms/InstCombine/memmove-2.ll
Meador Inge d7cb600514 instcombine: Migrate memmove optimizations
This patch migrates the memmove optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167687 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11 06:22:40 +00:00

18 lines
584 B
LLVM

; Test that the memmove library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
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"
declare i8 @memmove(i8*, i8*, i32)
; Check that memmove functions with the wrong prototype aren't simplified.
define i8 @test_no_simplify1(i8* %mem1, i8* %mem2, i32 %size) {
; CHECK: @test_no_simplify1
%ret = call i8 @memmove(i8* %mem1, i8* %mem2, i32 %size)
; CHECK: call i8 @memmove
ret i8 %ret
; CHECK: ret i8 %ret
}