6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-28 04:33:05 +00:00
Code Issues Projects Releases Wiki Activity
d5a61c2958
llvm-6502/test/Transforms/ObjCARC/gvn.ll

42 lines
952 B
LLVM
Raw Normal View History

This test is only supposed to test that the objc-arc alias analysis allows for gvn to perform certain optimizations. Thus the runline should only contain -objc-arc-aa, not the full -objc-arc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173126 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 04:41:11 +00:00
; RUN: opt -S -basicaa -objc-arc-aa -gvn < %s | FileCheck %s
The ARC language-specific optimizer. Credit to Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:37:01 +00:00
@x = common global i8* null, align 8
declare i8* @objc_retain(i8*)
[objc-arc] Committed test for r185770 as per dblaikie's suggestion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185782 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-08 02:13:47 +00:00
declare i32 @objc_sync_enter(i8*)
declare i32 @objc_sync_exit(i8*)
The ARC language-specific optimizer. Credit to Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:37:01 +00:00
; GVN should be able to eliminate this redundant load, with ARC-specific
; alias analysis.
[objc-arc] Teach the ARC optimizer that objc_sync_enter/objc_sync_exit do not modify the ref count of an objc object and additionally are inert for modref purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185769 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-07 01:52:55 +00:00
; CHECK: define i8* @test0(i32 %n)
The ARC language-specific optimizer. Credit to Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:37:01 +00:00
; CHECK-NEXT: entry:
; CHECK-NEXT: %s = load i8** @x
; CHECK-NOT: load
; CHECK: ret i8* %s
[objc-arc] Test cleanups. Mainly adding paranoid checks for the closing brace of a function to help with FileCheck error readability. Also some other minor changes. No actual CHECK changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180668 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-27 05:25:54 +00:00
; CHECK-NEXT: }
[objc-arc] Teach the ARC optimizer that objc_sync_enter/objc_sync_exit do not modify the ref count of an objc object and additionally are inert for modref purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185769 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-07 01:52:55 +00:00
define i8* @test0(i32 %n) nounwind {
The ARC language-specific optimizer. Credit to Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:37:01 +00:00
entry:
%s = load i8** @x
%0 = tail call i8* @objc_retain(i8* %s) nounwind
%t = load i8** @x
[objc-arc] Teach the ARC optimizer that objc_sync_enter/objc_sync_exit do not modify the ref count of an objc object and additionally are inert for modref purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185769 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-07 01:52:55 +00:00
ret i8* %t
}
[objc-arc] Committed test for r185770 as per dblaikie's suggestion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185782 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-08 02:13:47 +00:00
; GVN should not be able to eliminate this redundant load, with ARC-specific
; alias analysis.
Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. This conversion 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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186269 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:50:49 +00:00
; CHECK-LABEL: define i8* @test1(
[objc-arc] Committed test for r185770 as per dblaikie's suggestion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185782 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-08 02:13:47 +00:00
; CHECK: load
; CHECK: load
; CHECK: ret i8* %t
; CHECK: }
define i8* @test1(i32 %n) nounwind {
entry:
%s = load i8** @x
%0 = call i32 @objc_sync_enter(i8* %s)
%t = load i8** @x
%1 = call i32 @objc_sync_exit(i8* %s)
ret i8* %t
}
Reference in New Issue Copy Permalink