make it easier to see interesting ambiguities.
- Also, check that user doesn't try to redefine the super class. This is a wart
in the current design, in that assembler match classes aren't explicitly
declared somewhere (so there isn't a unique place to declare the super
class). This should probably be fixed.
llvm-svn: 78532
- We want the ordering operation to be simple, since we run it on every
match. The old ordering is also not a strict weak ordering when there are
ambiguities, which makes MSVC unhappy.
- While we are at it, detect all ambiguities instead of just the adjacent
ones. There are actually 655, for X86.
llvm-svn: 78526
- Track whether we need to insert an explicit 'break'.
- Invert conditional when matching a single prefix to reduce
nesting/bracing/breaking.
- wc -l of X86GenAsmMatcher.inc decreased by 10%. :)
llvm-svn: 78513
2. Move section switch printing to MCSection virtual method which takes a
TAI. This eliminates textual formatting stuff from TLOF.
3. Eliminate SwitchToSectionDirective, getSectionFlagsAsString, and
TLOFELF::AtIsCommentChar.
llvm-svn: 78510
A TAI hook is appropriate in this case because this is just an
asm syntax issue, not a semantic difference. TLOF should model
the semantics of the section.
llvm-svn: 78498
Blackfin supports and/or/xor on i32 but not on i16. Teach
DAGCombiner::SimplifyBinOpWithSameOpcodeHands to not produce illegal nodes
after legalize ops.
llvm-svn: 78497
much more efficient way than a sequence of if's. Switch MatchRegisterName
to use it. It would be nice if someone could factor this out to a shared
place in tblgen :)
llvm-svn: 78492
since they are in 64 bit mode with i64immSExt32 imms. JIT is not affected since
it handles both word absolute relocations in the same way
llvm-svn: 78479
- Part of optimal static profiling patch sequence by Andreas Neustifter.
- Store edge, block, and function information separately for each functions
(instead of in one giant map).
- Return frequencies as double instead of int, and use a sentinel value for
missing information.
llvm-svn: 78477
Handle large integers, x86_fp80, ConstantAggregateZero, and two more ConstantExpr:
GetElementPtr and IntToPtr
Set SHF_MERGE bit for mergeable strings
Avoid zero initialized strings to be classified as a bss symbol
Don't allow common symbols to be classified as STB_WEAK
Add a constant to be used as a global value offset in data relocations
llvm-svn: 78476
Also don't dereference old pointers after they have been deleted causing
random crashes when enabling the machine code verifier.
Ahem...
I have not included a test case for the crash. It hapened when enabling the
verifier on CodeGen/X86/2009-08-06-branchfolder-crash.ll.
The crash depends on an MBB being allocated at the same address as a
previously deleted MBB. I don't think that can be reproduced reliably.
llvm-svn: 78472
Chris Lattner