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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2015-04-15 22:29:27 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2015-04-15 22:29:27 +0000 |
| commit | 62e0f454a03d4989c1646563ba2e8d87c5753964 (patch) | |
| tree | 91db3029c5d0fb66ec7991cfb41c415af55f6fd0 /llvm/test/CodeGen/ARM/debug-info-d16-reg.ll | |
| parent | 4bdc50eccb1d41bc51232a55e734a70da8ae5ee2 (diff) | |
| download | bcm5719-llvm-62e0f454a03d4989c1646563ba2e8d87c5753964.tar.gz bcm5719-llvm-62e0f454a03d4989c1646563ba2e8d87c5753964.zip | |
DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable
Remove 'inlinedAt:' from MDLocalVariable. Besides saving some memory
(variables with it seem to be single largest `Metadata` contributer to
memory usage right now in -g -flto builds), this stops optimization and
backend passes from having to change local variables.
The 'inlinedAt:' field was used by the backend in two ways:
1. To tell the backend whether and into what a variable was inlined.
2. To create a unique id for each inlined variable.
Instead, rely on the 'inlinedAt:' field of the intrinsic's `!dbg`
attachment, and change the DWARF backend to use a typedef called
`InlinedVariable` which is `std::pair<MDLocalVariable*, MDLocation*>`.
This `DebugLoc` is already passed reliably through the backend (as
verified by r234021).
This commit removes the check from r234021, but I added a new check
(that will survive) in r235048, and changed the `DIBuilder` API in
r235041 to require a `!dbg` attachment whose 'scope:` is in the same
`MDSubprogram` as the variable's.
If this breaks your out-of-tree testcases, perhaps the script I used
(mdlocalvariable-drop-inlinedat.sh) will help; I'll attach it to PR22778
in a moment.
llvm-svn: 235050
Diffstat (limited to 'llvm/test/CodeGen/ARM/debug-info-d16-reg.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/debug-info-d16-reg.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll b/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll index 7c4fb38106a..ca44e67f9cc 100644 --- a/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll +++ b/llvm/test/CodeGen/ARM/debug-info-d16-reg.ll @@ -82,9 +82,9 @@ declare i32 @puts(i8* nocapture) nounwind !20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4, arg: 2, scope: !9, file: !1, type: !7) !21 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4, arg: 3, scope: !9, file: !1, type: !8) -!49 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4, arg: 1, scope: !9, file: !1, type: !6, inlinedAt: !37) -!50 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4, arg: 2, scope: !9, file: !1, type: !7, inlinedAt: !37) -!51 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4, arg: 2, scope: !9, file: !1, type: !8, inlinedAt: !37) +!49 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "ptr", line: 4, arg: 1, scope: !9, file: !1, type: !6) +!50 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "val", line: 4, arg: 2, scope: !9, file: !1, type: !7) +!51 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "c", line: 4, arg: 2, scope: !9, file: !1, type: !8) !22 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argc", line: 17, arg: 0, scope: !10, file: !1, type: !5) !23 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "argv", line: 17, arg: 0, scope: !10, file: !1, type: !13) |
