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llvm-svn: 126959

llvm::Function argument count is not a good indicator of how many arugments does the function have at source level. If we need more space, just resize vector conservatively. This vector is only used once per function.

llvm-svn: 126957

llvm-svn: 126794

llvm-svn: 126488

llvm-svn: 126450

Patch by Nathan Jeffords!

llvm-svn: 126425

llvm-svn: 126397

Use DW_FORM_data2 for DW_AT_language and let users use DW_LANG_lo_user=0x8000 to DW_LANG_hi_user=0xffff range.

llvm-svn: 126339

r124468.  Patch by Rafael Avila de Espindola!

llvm-svn: 126297

Do not emit empty DW_TAG_lexical_block DIEs.  In one test case, size of debug info reduced by almost 7%.

llvm-svn: 126009

Ignore DBG_VALUE machine instructions while constructing instruction ranges based on location info. 
Machine instruction range consisting of only DBG_VALUE MIs only contributes consecutive labels in assembly output, which is harmless, and empty scope entry in DebugInfo, which confuses debugger tools.

llvm-svn: 125577

llvm-svn: 125563

llvm-svn: 125225

llvm-svn: 124904

llvm-svn: 124755

llvm-svn: 124752

llvm-svn: 124569

llvm-svn: 124468

llvm-svn: 124150

llvm-svn: 123862

llvm-svn: 123856

llvm-svn: 123491

Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.

llvm-svn: 123476

llvm-svn: 123474

llvm-svn: 123473

This is not yet completely enabled.

llvm-svn: 123274

Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.

llvm-svn: 123170

Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.

This allows memory instructions to be moved around INLINEASM instructions.

llvm-svn: 123044

llvm-svn: 123039

Enable live debug variables pass.

llvm-svn: 123032

This fixes PR 8913 crash.

llvm-svn: 122971

so that Dominators.h is *just* domtree.  Also prune #includes a bit.

llvm-svn: 122714

llvm-svn: 122193

for each constant pool entry.  Using WriteTypeSymbolic here takes time
proportional to the size of the module, for each constant pool entry.

This speeds up -verbose-asm llc on 252.eon (a random testcase at my disposal)
from 4.4s to 2.137s.  llc takes 2.11s with asm-verbose off, so this is now a
pretty reasonable cost for verbose comments.

llvm-svn: 121691

This fixes radar 8730409.

llvm-svn: 121323

This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.

llvm-svn: 121061

as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

llvm-svn: 121006

linux and darwin assemblers happy :-(

llvm-svn: 121004

that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

llvm-svn: 121000

llvm-svn: 120298