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| 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 | d4bff30370db9f2cb13838897012768739cf1ee0 (patch) | |
| tree | f6c80f666794291c78575617d326207f57939b61 /llvm/test/Transforms/SampleProfile/inline.ll | |
| parent | 18da38edb315fe9e063348c4d785b26111b6d7ec (diff) | |
| download | bcm5719-llvm-d4bff30370db9f2cb13838897012768739cf1ee0.tar.gz bcm5719-llvm-d4bff30370db9f2cb13838897012768739cf1ee0.zip | |
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
llvm-svn: 252219
Diffstat (limited to 'llvm/test/Transforms/SampleProfile/inline.ll')
| -rw-r--r-- | llvm/test/Transforms/SampleProfile/inline.ll | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/test/Transforms/SampleProfile/inline.ll b/llvm/test/Transforms/SampleProfile/inline.ll index 50f72811fbe..a128df56dbf 100644 --- a/llvm/test/Transforms/SampleProfile/inline.ll +++ b/llvm/test/Transforms/SampleProfile/inline.ll @@ -19,7 +19,7 @@ @.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1 ; Function Attrs: nounwind uwtable -define i32 @_Z3sumii(i32 %x, i32 %y) { +define i32 @_Z3sumii(i32 %x, i32 %y) !dbg !4 { entry: %x.addr = alloca i32, align 4 %y.addr = alloca i32, align 4 @@ -32,7 +32,7 @@ entry: } ; Function Attrs: uwtable -define i32 @main() { +define i32 @main() !dbg !7 { entry: %retval = alloca i32, align 4 %s = alloca i32, align 4 @@ -84,10 +84,10 @@ declare i32 @printf(i8*, ...) #2 !1 = !DIFile(filename: "calls.cc", directory: ".") !2 = !{} !3 = !{!4, !7} -!4 = distinct !DISubprogram(name: "sum", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, function: i32 (i32, i32)* @_Z3sumii, variables: !2) +!4 = distinct !DISubprogram(name: "sum", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2) !5 = !DIFile(filename: "calls.cc", directory: ".") !6 = !DISubroutineType(types: !2) -!7 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !5, type: !6, function: i32 ()* @main, variables: !2) +!7 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !2) !8 = !{i32 2, !"Dwarf Version", i32 4} !9 = !{i32 1, !"Debug Info Version", i32 3} !10 = !{!"clang version 3.5 "} |
