RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-26 12:43:36 +01:00
Code Issues Projects Releases Wiki Activity

Bitcode: Set LastDL after writing DebugLocs

Browse Source 
Somehow I dropped this in r233585, and we haven't had `DEBUG_LOC_AGAIN`
records since.  Add it back.  Also tests that the output assembly looks
okay.

Fixes PR23436.

llvm-svn: 236661
This commit is contained in:
Duncan P. N. Exon Smith 2015-05-06 22:51:12 +00:00
parent f60fb37d5f
commit 344f7726b1
2 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -2135,6 +2135,8 @@ static void WriteFunction(const Function &F, ValueEnumerator &VE,
Vals.push_back(VE.getMetadataOrNullID(DL->getInlinedAt()));
Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals);
Vals.clear();
LastDL = DL;
}
// Emit names for all the instructions etc.

36
test/Bitcode/debug-loc-again.ll Normal file
View File

@ -0,0 +1,36 @@
; RUN: llvm-as < %s | llvm-bcanalyzer -dump | FileCheck %s -check-prefix=BC
; PR23436: Actually emit DEBUG_LOC_AGAIN records.
; BC: <DEBUG_LOC op
; BC: <DEBUG_LOC_AGAIN/>
; BC: <DEBUG_LOC op
; BC: <DEBUG_LOC_AGAIN/>
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; Check that this round-trips correctly.
define void @foo() {
entry:
%a = add i32 0, 0, !dbg !3
%b = add i32 0, 1, !dbg !3
%c = add i32 0, 2, !dbg !4
ret void, !dbg !4
}
; CHECK-LABEL: entry:
; CHECK-NEXT: %a = add i32 0, 0, !dbg ![[LINE1:[0-9]+]]
; CHECK-NEXT: %b = add i32 0, 1, !dbg ![[LINE1]]
; CHECK-NEXT: %c = add i32 0, 2, !dbg ![[LINE2:[0-9]+]]
; CHECK-NEXT: ret void, !dbg ![[LINE2]]
; CHECK: ![[LINE1]] = !DILocation(line: 1,
; CHECK: ![[LINE2]] = !DILocation(line: 2,
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = !DICompileUnit(language: DW_LANG_C99, file: !DIFile(filename: "f", directory: "/d"),
subprograms: !{!2})
!2 = !DISubprogram(name: "foo")
!3 = !DILocation(line: 1, scope: !2)
!4 = !DILocation(line: 2, scope: !2)