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Factor a bunch of functionality related to memcpy and memset transforms out of

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GVN and into its own pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2008-04-09 08:23:16 +00:00
parent 82a66291b0
commit a723d1e48f
13 changed files with 790 additions and 628 deletions
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28
test/Transforms/MemCpyOpt/sret.ll Normal file
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; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | not grep {call.*memcpy}
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"
target triple = "i686-apple-darwin9"
define void @ccosl({ x86_fp80, x86_fp80 }* noalias sret %agg.result, { x86_fp80, x86_fp80 }* byval %z) nounwind {
entry:
%iz = alloca { x86_fp80, x86_fp80 } ; <{ x86_fp80, x86_fp80 }*> [#uses=3]
%memtmp = alloca { x86_fp80, x86_fp80 }, align 16 ; <{ x86_fp80, x86_fp80 }*> [#uses=2]
%tmp1 = getelementptr { x86_fp80, x86_fp80 }* %z, i32 0, i32 1 ; <x86_fp80*> [#uses=1]
%tmp2 = load x86_fp80* %tmp1, align 16 ; <x86_fp80> [#uses=1]
%tmp3 = sub x86_fp80 0xK80000000000000000000, %tmp2 ; <x86_fp80> [#uses=1]
%tmp4 = getelementptr { x86_fp80, x86_fp80 }* %iz, i32 0, i32 1 ; <x86_fp80*> [#uses=1]
%real = getelementptr { x86_fp80, x86_fp80 }* %iz, i32 0, i32 0 ; <x86_fp80*> [#uses=1]
%tmp7 = getelementptr { x86_fp80, x86_fp80 }* %z, i32 0, i32 0 ; <x86_fp80*> [#uses=1]
%tmp8 = load x86_fp80* %tmp7, align 16 ; <x86_fp80> [#uses=1]
store x86_fp80 %tmp3, x86_fp80* %real, align 16
store x86_fp80 %tmp8, x86_fp80* %tmp4, align 16
call void @ccoshl( { x86_fp80, x86_fp80 }* noalias sret %memtmp, { x86_fp80, x86_fp80 }* byval %iz ) nounwind
%memtmp14 = bitcast { x86_fp80, x86_fp80 }* %memtmp to i8* ; <i8*> [#uses=1]
%agg.result15 = bitcast { x86_fp80, x86_fp80 }* %agg.result to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.i32( i8* %agg.result15, i8* %memtmp14, i32 32, i32 16 )
ret void
}
declare void @ccoshl({ x86_fp80, x86_fp80 }* noalias sret , { x86_fp80, x86_fp80 }* byval ) nounwind
declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind