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  1. 26 Feb, 2015 2 commits
  3. 25 Feb, 2015 3 commits
  5. 24 Feb, 2015 4 commits
  7. 20 Feb, 2015 2 commits
  9. 19 Feb, 2015 1 commit
  11. 13 Feb, 2015 5 commits
  13. 12 Feb, 2015 2 commits
    • Subzero: Use -filetype instead of -ias and -elf-writer. · d442e7ee
      Jim Stichnoth authored 
      This matches LLVM's -filetype={obj,asm} options, and also adds -filetype=iasm to get textual rendering with the integrated assembler.

It also removes the old illegal combination of -ias=0 -elf-writer.

BUG= none
R=jvoung@chromium.org, kschimpf@google.com

Review URL: https://codereview.chromium.org/920953002
    • Subzero: Emit functions and global initializers in a separate thread. · bbca754a
      Jim Stichnoth authored 
      (This is a continuation of https://codereview.chromium.org/876083007/ .)

Emission is done in a separate thread when -threads=N with N>0 is specified.  This includes both functions and global initializers.

Emission is deterministic.  The parser assigns sequence numbers, and the emitter thread reassembles work units into their original order, regardless of the number of threads.

Dump output, however, is not intended to be in deterministic, reassembled order.  As such, lit tests that test dump output (i.e., '-verbose inst') are explicitly run with -threads=0.

For -elf-writer and -ias=1, the translator thread invokes Cfg::emitIAS() and the assembler buffer is passed to the emitter thread.  For -ias=0, the translator thread passed the Cfg to the emitter thread which then invokes Cfg::emit() to produce the textual asm.

Minor cleanup along the way:
  * Removed Flags from the Ice::Translator object and ctor, since it was redundant with Ctx->getFlags().
  * Cfg::getAssembler<> is the same as Cfg::getAssembler<Assembler> and is useful for just passing the assembler around.
  * Removed the redundant Ctx argument from TargetDataLowering::lowerConstants() .

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4075
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/916653004
  15. 10 Feb, 2015 1 commit
    • Fix PNaCl bitcode reader to release global variables to emitter. · 6ca7d2b6
      Karl Schimpf authored 
      Fixes the PNaCl bitcode reader to maintain two lists of global
variables. The first, VariableDeclarations, is the list of
variable declarations to be lowered by the emitter. The second,
ValueIDConstants, is the corresponding constant symbol to use
when references to the corresponding global variable declaration
is referenced when processing functions.

BUG=None
R=jvoung@chromium.org, stichnot@chromium.org

Review URL: https://codereview.chromium.org/883673005
  17. 09 Feb, 2015 1 commit
  19. 06 Feb, 2015 1 commit
  21. 05 Feb, 2015 1 commit
  23. 04 Feb, 2015 2 commits
  25. 03 Feb, 2015 4 commits
  27. 01 Feb, 2015 2 commits
  29. 31 Jan, 2015 2 commits
    • Subzero: Fix stats collection and output for multithreading. · a1dd3cc8
      Jim Stichnoth authored 
      Updates of current-function and cumulative stats are done entirely in TLS.  At the end, cumulative stats are merged across all threads' TLS into the global cumulative stats.

Printing of cumulative stats after every function is removed, since there's very little value from that.  It was probably done in the first place just to give partial cumulative information in the face of crashes or assertion failures.

BUG= none
R=jfb@chromium.org

Review URL: https://codereview.chromium.org/887213002
    • Fix subzero Windows build · ae6e12ca
      JF Bastien authored 
      MinGW's GCC 4.8.1 was sad because SectionType was shadowing the other SectionType. Also, the enum's values are in the ELFObjectWriter namespace, not ELFObjectWriter::SectionType.

R=stichnot@chromium.org, jvoung@chromium.org
BUG= Windows build is sad

Review URL: https://codereview.chromium.org/891953002
  31. 30 Jan, 2015 2 commits
    • Subzero: Fix timers for multithreaded translation. · 380d7b96
      Jim Stichnoth authored 
      Now that multithreaded parsing and translation is in place, timer operations have to be made thread-local.  After the non-main threads end, their thread-local timer data needs to be merged into the global timer data, which resides in the GlobalContext object.  The merge is a bit tricky because the internal timer stack structure is built up dynamically as items are pushed and popped.  Two threads may have radically different timing data:

1. The parser thread profile is completely different from a translator thread.

2. For -timing-funcs, two translator threads hold data for entirely different sets of functions.

A bit more tweaking will need to be done to make the timing output fully usable in a multithreaded run.  Because of multiple threads, times may add up to >100%.  Also, time spent blocked is being "unfairly" attributed to the caller of the blocking operation - we should either count the user time instead of wall-clock time, or add a special timer marker for blocking locking operations.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/878383004
    • Subzero: Minor Makefile fix. · 51d00936
      Jim Stichnoth authored 
      The problem showed up after the link step failed, in which case $(OBJDIR)/llvm2ice was deleted but the ./llvm2ice symlink still existed.  A subsequent "make check-lit" or "make check" would fail, so the basic "make" would have to be done first.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/887873002
  33. 29 Jan, 2015 1 commit
    • Write out global initializers and data rel directly to ELF file. · 72984d88
      Jan Voung authored 
      The local symbol relocations are a bit different from
llvm-mc, which are section-relative. E.g., instead "bytes",
it will be ".data + offsetof(bytes, .data)". So the
contents of the text/data/rodata sections can also differ
since the offsets written in place are different.

Still need to fill the symbol table with undefined
symbols (e.g., memset, and szrt lib functions) before
trying to link.

BUG=none
R=kschimpf@google.com, stichnot@chromium.org

Review URL: https://codereview.chromium.org/874353006
  35. 28 Jan, 2015 4 commits