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r143406 | efriedma | 2011-10-31 16:59:22 -0700 (Mon, 31 Oct 2011) | 3 lines
Add support for new atomics to cpp backend. Misc other fixes while I'm here. PR11268.
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r143194 | chapuni | 2011-10-28 07:12:22 -0700 (Fri, 28 Oct 2011) | 7 lines
Dwarf: [PR11022] Fix emitting DW_AT_const_value(>i64), to be host-endian-neutral.
Don't assume APInt::getRawData() would hold target-aware endianness nor host-compliant endianness. rawdata[0] holds most lower i64, even on big endian host.
FIXME: Add a testcase for big endian target.
FIXME: Ditto on CompileUnit::addConstantFPValue() ?
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r143437 | efriedma | 2011-10-31 21:49:29 -0700 (Mon, 31 Oct 2011) | 3 lines
Make sure we use the right insertion point when instcombine replaces a PHI with another instruction. (Specifically, don't insert an arbitrary instruction before a PHI.) Fixes PR11275.
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r143006 | stoklund | 2011-10-25 18:47:48 -0700 (Tue, 25 Oct 2011) | 8 lines
Don't use floating point to do an integer's job.
This code makes different decisions when compiled into x87 instructions
because of different rounding behavior. That caused phase 2/3
miscompares on 32-bit Linux when the phase 1 compiler was built with gcc
(using x87), and the phase 2 compiler was built with clang (using SSE).
This fixes PR11200.
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r142869 | void | 2011-10-24 16:05:43 -0700 (Mon, 24 Oct 2011) | 4 lines
Check the visibility of the global variable before placing it into the stubs
table. A hidden variable could potentially end up in both lists.
<rdar://problem/10336715>
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r142841 | efriedma | 2011-10-24 13:24:21 -0700 (Mon, 24 Oct 2011) | 3 lines
Add support to the old JIT for acquire/release loads and stores on x86. PR11207.
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r142550 | evancheng | 2011-10-19 15:22:54 -0700 (Wed, 19 Oct 2011) | 1 line
Fix TLS lowering bug. The CopyFromReg must be glued to the TLSCALL. rdar://10291355
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r142493 | chandlerc | 2011-10-19 03:32:19 -0700 (Wed, 19 Oct 2011) | 5 lines
Generalize the reading of probability metadata to work for both branches
and switches, with arbitrary numbers of successors. Still optimized for
the common case of 2 successors for a conditional branch.
Add a test case for switch metadata showing up in the BlockFrequencyInfo pass.
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r142492 | chandlerc | 2011-10-19 03:30:30 -0700 (Wed, 19 Oct 2011) | 7 lines
Teach the BranchProbabilityInfo analysis pass to read any metadata
encoding of probabilities. In the absense of metadata, it continues to
fall back on static heuristics.
This allows __builtin_expect, after lowering through llvm.expect
a branch instruction's metadata, to actually enter the branch
probability model. This is one component of resolving PR2577.
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r142491 | chandlerc | 2011-10-19 03:12:41 -0700 (Wed, 19 Oct 2011) | 9 lines
Add pass printing support to BlockFrequencyInfo pass. The implementation
layer already had support for printing the results of this analysis, but
the wiring was missing.
Now that printing the analysis works, actually bring some of this
analysis, and the BranchProbabilityInfo analysis that it wraps, under
test! I'm planning on fixing some bugs and doing other work here, so
having a nice place to add regression tests and a way to observe the
results is really useful.
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r142168 | chandlerc | 2011-10-16 18:11:57 -0700 (Sun, 16 Oct 2011) | 8 lines
Add a routine to swap branch instruction operands, and update any
profile metadata at the same time. Use it to preserve metadata attached
to a branch when re-writing it in InstCombine.
Add metadata to the canonicalize_branch InstCombine test, and check that
it is tranformed correctly.
Reviewed by Nick Lewycky!
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r142537 | rafael | 2011-10-19 11:48:52 -0700 (Wed, 19 Oct 2011) | 1 line
Fix parsing of a line with only a # in it.
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PR11143: Save the old diagnostic handler and call it when munging diagnostics for #line directives.
This reenables proper inline asm diagnostics in clang
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r142132 | d0k | 2011-10-16 03:48:29 -0700 (Sun, 16 Oct 2011) | 3 lines
PR11143: Save the old diagnostic handler and call it when munging diagnostics for #line directives.
This reenables proper inline asm diagnostics in clang
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r142039 | chapuni | 2011-10-14 18:58:16 -0700 (Fri, 14 Oct 2011) | 3 lines
Windows/Memory.inc: Support the ability to allocate memory "near" another block of memory on Win32. It has fixed FIXME.
Thanks to Aaron Ballman!
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r142058 | atrick | 2011-10-14 23:19:55 -0700 (Fri, 14 Oct 2011) | 7 lines
Fix SCEVExpander assert during LSR: "argument of incompatible type".
Just because we're dealing with a GEP doesn't mean we can assert the
SCEV has a pointer type. The fix is simply to ignore the SCEV pointer
type, which we really didn't need.
Fixes PR11138 webkit crash.
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I rewrote the algorithm a while back so it doesn't require map lookup,
but neglected to change the data structure. This was caught by
llvm-gcc self host, not because there's anything special about
llvm-gcc, but because it is the only test for nondeterminism we
currently have. Unit tests don't work well for everything; we should
always try to have a nondeterminism stress test running.
Fixes PR11133: llvm-gcc self host .o mismatch after enable-iv-rewrite=false
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This isn't put into the 'clear()' method because the information needs to stick
around (at least for a little bit) after the selection DAG is built.
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It really doesn't, but when r141929 removed the hasSideEffects flag from
this instruction, it caused miscompilations. I am guessing that it got
moved across a stack pointer update.
Also clear isRematerializable after checking that this instruction is
in fact never rematerialized in the nightly test suite.
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rdar://10288916 is tracking this fix.
In the past, instcombine and other passes were promoting alloca alignment past
the natural alignment, resulting in dynamic stack realignment. Lang's work now
prevents this from happening (LLVM commit r141599). Now that this really
shouldn't happen report a fatal error rather than silently generate bad code.
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The callee-saved registers cannot be live across an invoke call because the
control flow may continue along the exceptional edge. When this happens, all of
the callee-saved registers are no longer valid.
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could be arguments, for example.
No testcase because this is a bug-fix broken out of a larger optimization patch.
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Bill Wendling
Andrew Trick
Jakob Stoklund Olesen
Chad Rosier
Eli Friedman
Chris Lattner
Tanya Lattner
Richard Trieu
Torok Edwin
Evan Cheng
Owen Anderson
Hal Finkel
Akira Hatanaka
Jim Grosbach
Nick Lewycky
Craig Topper