llvm/test/CodeGen/CBackend/2004-02-15-PreexistingExternals.ll
Chris Lattner 1ce9e00f8b rename *.llx -> *.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:29:10 +00:00

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LLVM

; The intrinsic lowering pass was lowering intrinsics like llvm.memcpy to
; explicitly specified prototypes, inserting a new function if the old one
; didn't exist. This caused there to be two external memcpy functions in
; this testcase for example, which caused the CBE to mangle one, screwing
; everything up. :( Test that this does not happen anymore.
;
; RUN: llvm-as < %s | llc -march=c | not grep _memcpy
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
declare float* @memcpy(i32*, i32, i32)
define i32 @test(i8* %A, i8* %B, i32* %C) {
call float* @memcpy( i32* %C, i32 4, i32 17 ) ; <float*>:1 [#uses=0]
call void @llvm.memcpy.i32( i8* %A, i8* %B, i32 123, i32 14 )
ret i32 7
}