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llvm-project/llvm/test/Transforms/MemCpyOpt/loadstore-sret.ll

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Make BasicAliasAnalysis a normal AliasAnalysis implementation which does normal initialization and normal chaining. Change the default AliasAnalysis implementation to NoAlias. Update StandardCompileOpts.h and friends to explicitly request BasicAliasAnalysis. Update tests to explicitly request -basicaa. llvm-svn: 116720
2010-10-19 02:04:47 +08:00
; RUN: opt -S < %s -basicaa -memcpyopt | FileCheck %s
Generalize MemCpyOpt's handling of call slot forwarding to function properly when the call slot forwarding is implemented with a load/store pair rather than a memcpy. llvm-svn: 116637
2010-10-16 06:52:12 +08:00
; <rdar://problem/8536696>
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin10.0.0"
%"class.std::auto_ptr" = type { i32* }
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done llvm-svn: 186268
2013-07-14 09:42:54 +08:00
; CHECK-LABEL: @_Z3foov(
Generalize MemCpyOpt's handling of call slot forwarding to function properly when the call slot forwarding is implemented with a load/store pair rather than a memcpy. llvm-svn: 116637
2010-10-16 06:52:12 +08:00
define void @_Z3foov(%"class.std::auto_ptr"* noalias nocapture sret %agg.result) ssp {
_ZNSt8auto_ptrIiED1Ev.exit:
%temp.lvalue = alloca %"class.std::auto_ptr", align 8
; CHECK: call void @_Z3barv(%"class.std::auto_ptr"* sret %agg.result)
call void @_Z3barv(%"class.std::auto_ptr"* sret %temp.lvalue)
%tmp.i.i = getelementptr inbounds %"class.std::auto_ptr"* %temp.lvalue, i64 0, i32 0
; CHECK-NOT: load
%tmp2.i.i = load i32** %tmp.i.i, align 8
%tmp.i.i4 = getelementptr inbounds %"class.std::auto_ptr"* %agg.result, i64 0, i32 0
; CHECK-NOT: store
store i32* %tmp2.i.i, i32** %tmp.i.i4, align 8
; CHECK: ret void
ret void
}
Don't eliminate memcpy's when the address of the pointer may itself be relevant. Fixes PR18304. Patch by David Wiberg! llvm-svn: 212970
2014-07-15 02:52:02 +08:00
declare void @_Z3barv(%"class.std::auto_ptr"* nocapture sret)