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3 Commits

Author SHA1 Message Date
Martin Storsjö
6cbd2973fc [COFF] Widen PE32Header fields to fit 64 bit versions
The PE32Header struct is only used by COFFYAML, for intermediate
storage. The struct doesn't match the on-disk struct layout as it
uses native integers instead of e.g. support::ulittle32_t, so just
widen the fields to fit values for object::pe32plus_header, in
addition to object::pe32_header.

This avoids truncating the 64 bit ImageBase for 64 bit executables.

Differential Revision: https://reviews.llvm.org/D70464
2019-11-21 12:05:00 +02:00
Fangrui Song
053d07b664 [yaml2obj][test] Move tests to binary format specific subdirectories
Create COFF/, ELF/, and Minidump and move tests there.

Also

* Rename `*.test` to `*.yaml`
* For yaml2obj RUN lines, use `-o %t` instead of `> %t` for consistency.
  We still have tests that check stdout is the default output, e.g.
  multi-doc.test
* Update tests to consistently use `##` for comments.
  `#` is for RUN and CHECK lines.
* Merge symboless-relocation.yaml and invalid-symboless-relocation.yaml to ELF/relocation-implicit-symbol-index.test

Reviewed By: grimar, jhenderson

Differential Revision: https://reviews.llvm.org/D70264
2019-11-18 09:06:14 -08:00
Vedant Kumar
e0f6fc5659 [DebugInfo] Allow spill slots in call site parameter descriptions
Allow call site paramter descriptions to reference spill slots. Spill
slots are not visible to high-level LLVM IR, so they can safely be
referenced during entry value evaluation (as they cannot be clobbered by
some other function).

This gives a 5% increase in the number of call site parameter DIEs in an
LTO x86_64 build of the xnu kernel.

This reverts commit eb4c98ca3d2590bad9f6542afbf3a7824d2b53fa (
[DebugInfo] Exclude memory location values as parameter entry values),
effectively reintroducing the portion of D60716 which dealt with memory
locations (authored by Djordje, Nikola, Ananth, and Ivan).

This partially addresses llvm.org/PR43343. However, not all memory
operands forwarded to callees live in spill slots. In the xnu build, it
may be possible to use an escape analysis to increase the number of call
site parameter by another 15% (more details in PR43343).

Differential Revision: https://reviews.llvm.org/D70254
2019-11-15 09:55:36 -08:00