diff options
| author | Peter Collingbourne <peter@pcc.me.uk> | 2015-11-05 22:03:56 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2015-11-05 22:03:56 +0000 |
| commit | 5f220beefcb655de6aae7c80b456fd4e5cb76ac0 (patch) | |
| tree | d478c6bd28ca4a860f194ccd49ec67aa8f6b062e /test/DebugInfo/X86/inlined-indirect-value.ll | |
| parent | cc5dc01d7f7b6acdc7160fe30fda00e3b1b48687 (diff) | |
DI: Reverse direction of subprogram -> function edge.
Previously, subprograms contained a metadata reference to the function they
described. Because most clients need to get or set a subprogram for a given
function rather than the other way around, this created unneeded inefficiency.
For example, many passes needed to call the function llvm::makeSubprogramMap()
to build a mapping from functions to subprograms, and the IR linker needed to
fix up function references in a way that caused quadratic complexity in the IR
linking phase of LTO.
This change reverses the direction of the edge by storing the subprogram as
function-level metadata and removing DISubprogram's function field.
Since this is an IR change, a bitcode upgrade has been provided.
Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is
attached to the PR.
Differential Revision: http://reviews.llvm.org/D14265
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252219 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/DebugInfo/X86/inlined-indirect-value.ll')
| -rw-r--r-- | test/DebugInfo/X86/inlined-indirect-value.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/DebugInfo/X86/inlined-indirect-value.ll b/test/DebugInfo/X86/inlined-indirect-value.ll index 489efa54490..d203650d05c 100644 --- a/test/DebugInfo/X86/inlined-indirect-value.ll +++ b/test/DebugInfo/X86/inlined-indirect-value.ll @@ -22,7 +22,7 @@ target triple = "x86_64-unknown-linux-gnu" @x = common global i32 0, align 4 @y = common global i32 0, align 4 -define i32 @main() { +define i32 @main() !dbg !4 { ; CHECK: .loc 1 {{[89]}} ; CHECK-NOT: .loc ; CHECK: movl $1 @@ -53,7 +53,7 @@ select.end: ; preds = %entry, %select.mid !1 = !DIFile(filename: "inline-break.c", directory: "/build/dir") !2 = !{} !3 = !{!4, !8} -!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !5, isLocal: false, isDefinition: true, scopeLine: 7, isOptimized: true, function: i32 ()* @main, variables: !2) +!4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !5, isLocal: false, isDefinition: true, scopeLine: 7, isOptimized: true, variables: !2) !5 = !DISubroutineType(types: !6) !6 = !{!7} !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |