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/CodeGen/PowerPC/pr24546.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/CodeGen/PowerPC/pr24546.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/pr24546.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGen/PowerPC/pr24546.ll b/test/CodeGen/PowerPC/pr24546.ll index a04edfe65ea..06f6bc93da9 100644 --- a/test/CodeGen/PowerPC/pr24546.ll +++ b/test/CodeGen/PowerPC/pr24546.ll @@ -6,7 +6,7 @@ @php_intpow10.powers = external unnamed_addr constant [23 x double], align 8 ; Function Attrs: nounwind -define double @_php_math_round(double %value, i32 signext %places, i32 signext %mode) #0 { +define double @_php_math_round(double %value, i32 signext %places, i32 signext %mode) #0 !dbg !6 { entry: br i1 undef, label %if.then, label %if.else, !dbg !32 @@ -62,7 +62,7 @@ attributes #3 = { nounwind } !3 = !{!4} !4 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float) !5 = !{!6, !18} -!6 = distinct !DISubprogram(name: "_php_math_round", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: true, function: double (double, i32, i32)* @_php_math_round, variables: !10) +!6 = distinct !DISubprogram(name: "_php_math_round", scope: !1, file: !1, line: 15, type: !7, isLocal: false, isDefinition: true, scopeLine: 16, flags: DIFlagPrototyped, isOptimized: true, variables: !10) !7 = !DISubroutineType(types: !8) !8 = !{!4, !4, !9, !9} !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |