RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-02-01 05:01:59 +01:00
Code Issues Projects Releases Wiki Activity

Skip DbgInfoIntrinsic.

Browse Source 
llvm-svn: 66244
This commit is contained in:
Devang Patel 2009-03-06 02:59:27 +00:00
parent 1f96377a36
commit 9abfbc2e14
2 changed files with 68 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/Transforms/Scalar/GVN.cpp
View File

@ -21,7 +21,7 @@
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Value.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DepthFirstIterator.h"
@ -1470,7 +1470,7 @@ bool GVN::performPRE(Function& F) {
if (isa<AllocationInst>(CurInst) || isa<TerminatorInst>(CurInst) ||
isa<PHINode>(CurInst) || CurInst->mayReadFromMemory() ||
CurInst->mayWriteToMemory())
CurInst->mayWriteToMemory() || isa<DbgInfoIntrinsic>(CurInst))
continue;
uint32_t valno = VN.lookup(CurInst);

66
test/Transforms/GVN/2009-03-05-dbg.ll Normal file
View File

@ -0,0 +1,66 @@
; RUN: llvm-as < %s | opt -gvn -disable-output
%llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8*, i32 }
@llvm.dbg.compile_unit298 = external constant %llvm.dbg.compile_unit.type ; <%llvm.dbg.compile_unit.type*> [#uses=1]
declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
define i8* @__deregister_frame_info_bases(i8* %begin) {
entry:
br i1 false, label %bb17, label %bb
bb: ; preds = %entry
br i1 false, label %bb17, label %bb6.preheader
bb6.preheader: ; preds = %bb
br label %bb6
bb3: ; preds = %bb6
br i1 false, label %bb4, label %bb6
bb4: ; preds = %bb3
br label %out
bb6: ; preds = %bb3, %bb6.preheader
br i1 false, label %bb14.loopexit, label %bb3
bb8: ; preds = %bb14
br i1 false, label %bb9, label %bb11
bb9: ; preds = %bb8
br i1 false, label %bb10, label %bb13
bb10: ; preds = %bb9
br label %out
bb11: ; preds = %bb8
br i1 false, label %bb12, label %bb13
bb12: ; preds = %bb11
br label %out
bb13: ; preds = %bb11, %bb9
br label %bb14
bb14.loopexit: ; preds = %bb6
br label %bb14
bb14: ; preds = %bb14.loopexit, %bb13
br i1 false, label %bb15.loopexit, label %bb8
out: ; preds = %bb12, %bb10, %bb4
tail call void @llvm.dbg.stoppoint(i32 217, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit298 to { }*))
br i1 false, label %bb15, label %bb16
bb15.loopexit: ; preds = %bb14
br label %bb15
bb15: ; preds = %bb15.loopexit, %out
tail call void @llvm.dbg.stoppoint(i32 217, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit298 to { }*))
unreachable
bb16: ; preds = %out
ret i8* null
bb17: ; preds = %bb, %entry
ret i8* null
}