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62116 Commits

Author SHA1 Message Date
Gabor Greif 48fb6abf13 two more cases of reuse result of operator*, found by inspection 
llvm-svn: 107961
 2010-07-09 10:42:13 +00:00
Gabor Greif 85b87f5b5a another case of reuse result of operator*, it is expensive to recompute 
llvm-svn: 107960
 2010-07-09 10:32:31 +00:00
Gabor Greif a1e865825b reuse result of operator*, it is expensive to recompute 
llvm-svn: 107959
 2010-07-09 09:50:51 +00:00
Lang Hames 254bb971e0 Added a support for inserting new MBBs into the numbering. 
Unlike insertMachineInstrInMaps this does not guarantee live intervals will
remain correct. The caller will need to manually update intervals to account
for the changes made to the CFG.

llvm-svn: 107958
 2010-07-09 09:19:23 +00:00
Jakob Stoklund Olesen d4d9e53b20 Avoid creating %physreg:subidx operands in SimpleRegisterCoalescing::RemoveCopyByCommutingDef. 
This fixes PR7602.

llvm-svn: 107957
 2010-07-09 05:56:21 +00:00
Jakob Stoklund Olesen cac54d6435 Deal with a few remaining spots that assume physical registers have live intervals. 
This fixes PR7601.

llvm-svn: 107955
 2010-07-09 04:35:38 +00:00
Bruno Cardoso Lopes 992d25da71 Merge VEX enums with other x86 enum forms. Also fix all checks of which VEX 
fields to use. 

llvm-svn: 107952
 2010-07-09 01:56:45 +00:00
Jakob Stoklund Olesen a57965827f Fix test to be less sensitive of regalloc accidents 
llvm-svn: 107951
 2010-07-09 01:32:11 +00:00
Jakob Stoklund Olesen 66b3649030 Fix broken isCopy handling in TrimLiveIntervalToLastUse. 
llvm-svn: 107950
 2010-07-09 01:27:21 +00:00
Jakob Stoklund Olesen 5165fa1c39 Handle COPY in VirtRegRewriter. 
llvm-svn: 107949
 2010-07-09 01:27:19 +00:00
Dan Gohman 0a7d155d67 Fix the memoperand offsets in code generated for va_start. 
llvm-svn: 107948
 2010-07-09 01:06:48 +00:00
Dan Gohman cc40c76382 These changes should have accompanied r107943. 
llvm-svn: 107947
 2010-07-09 00:59:16 +00:00
Chris Lattner 88c185617c have the mc lowering process handle a few tail call forms, lowering them to 
jumps where possible and turning the TAILCALL marker in the instruction
asm string into a proper comment.

This eliminates a FIXME and is on the path to finishing:
rdar://7639610 - eliminate encoding and asm info for TAILJMPd TAILJMPr TAILJMPn, etc.

However, I can't eliminate the encodings for these instructions because the JIT
still exists and has its own copy of the encoder, sigh.

llvm-svn: 107946
 2010-07-09 00:49:41 +00:00
Bob Wilson 88a4e6dc0e Print "dregpair" NEON operands with a space between them, for readability and 
consistency with other instructions that have lists of register operands.

llvm-svn: 107944
 2010-07-09 00:47:20 +00:00
Dan Gohman 0b5aa1cdd3 Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting 
a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.

llvm-svn: 107943
 2010-07-09 00:39:23 +00:00
Bruno Cardoso Lopes e6cc0d33bb Factor out x86 segment override prefix encoding, and also use it for VEX 
llvm-svn: 107942
 2010-07-09 00:38:14 +00:00
Bob Wilson 21eed476e8 Reenable DAG combining for vector shuffles. It looks like it was temporarily 
disabled and then never turned back on again.  Adjust some tests, one because
this change avoids an unnecessary instruction, and the other to make it
continue testing what it was intended to test.

llvm-svn: 107941
 2010-07-09 00:38:12 +00:00
Chris Lattner 061d70ad2c reject pseudo instructions early in the encoder. 
llvm-svn: 107939
 2010-07-09 00:17:50 +00:00
Bruno Cardoso Lopes b652c1a145 Remove trailing whitespaces from file 
llvm-svn: 107937
 2010-07-09 00:07:19 +00:00
Chris Lattner f469307c77 Change LEA to have 5 operands for its memory operand, just 
like all other instructions, even though a segment is not
allowed.  This resolves a bunch of gross hacks in the 
encoder and makes LEA more consistent with the rest of the
instruction set.

No functionality change.

llvm-svn: 107934
 2010-07-08 23:46:44 +00:00
Stuart Hastings d08fb75aaa Reverting r107918 and r107919. Radar 8063111. 
llvm-svn: 107930
 2010-07-08 23:25:39 +00:00
Jakob Stoklund Olesen 823e90e12a Revert "Fix broken isCopy handling in TrimLiveIntervalToLastUse" 
This reverts commit 107921. It broke the clang self host.

llvm-svn: 107926
 2010-07-08 22:52:47 +00:00
Chris Lattner ec536276f0 add some long-overdue enums to refer to the parts of the 5-operand 
X86 memory operand.

llvm-svn: 107925
 2010-07-08 22:41:28 +00:00
Devang Patel 4c6bd6612f Relax assertion. In optimized code, it is possible that first instruction is coming from a inlined function. 
This fixes PR7596 .

llvm-svn: 107923
 2010-07-08 22:39:20 +00:00
Bill Wendling a992445ff2 Extension of r107506. Make sure that we don't mark a function as having a call 
if the inline ASM doesn't need a stack frame.

llvm-svn: 107922
 2010-07-08 22:38:02 +00:00
Jakob Stoklund Olesen 75c465585a Fix broken isCopy handling in TrimLiveIntervalToLastUse 
llvm-svn: 107921
 2010-07-08 22:30:38 +00:00
Jakob Stoklund Olesen ec58a43d81 Remember the VR64 register class 
llvm-svn: 107920
 2010-07-08 22:30:35 +00:00
Stuart Hastings 43d226deea Fix decl/def debug info for template functions. Radar 8063111. 
llvm-svn: 107919
 2010-07-08 22:28:59 +00:00
Chris Lattner 9f034c1e5d Rework segment prefix emission code to handle segments 
in memory operands at the same type as hard coded segments.
This fixes problems where we'd emit the segment override after
the REX prefix on instructions like:
mov %gs:(%rdi), %rax

This fixes rdar://8127102.  I have several cleanup patches coming
next.

llvm-svn: 107917
 2010-07-08 22:28:12 +00:00
Chris Lattner 1dd82c7dc2 introduce a new X86II::getMemoryOperandNo method, which 
returns the start of the memory operand for an instruction.

Introduce a new "X86AddrSegment" enum to reduce # magic numbers
referring to X86 memory operand layout.

llvm-svn: 107916
 2010-07-08 22:27:06 +00:00
Kalle Raiskila d799ea52cd Switch SPU calling convention (function arguments) 
to a Tablegen implementation.

llvm-svn: 107913
 2010-07-08 21:15:22 +00:00
Stuart Hastings aa246f5687 Test case for r107843. Radar 8152866. 
llvm-svn: 107907
 2010-07-08 20:31:05 +00:00
Kevin Enderby ea9207cd7a Revert some unneeded parts of the change in r107886 for the 
.weak_def_can_be_hidden directive.  Chris pointed out that the MCAsmInfo.h/.cpp
chunks aren't needed for this until the compiler starts generating these.  And
when that happens it will be more convenient for it to be a bool than a const
char*.

llvm-svn: 107906
 2010-07-08 20:30:44 +00:00
Evan Cheng 0f54854a1d Check for FiniteOnlyFPMath as well. 
llvm-svn: 107904
 2010-07-08 20:12:24 +00:00
Devang Patel 9c160e1213 Reuse DIEInteger for 1. This is frequently used while emitting an attribute using dwarf::DW_FORM_flag form. 
llvm-svn: 107903
 2010-07-08 20:10:35 +00:00
Jakob Stoklund Olesen 63a622b768 Teach the x86 floating point stackifier to handle COPY instructions. 
This pass runs before COPY instructions are passed to copyPhysReg, so we simply
translate COPY to the proper pseudo instruction. Note that copyPhysReg does not
handle floating point stack copies.

Once COPY is used everywhere, this can be cleaned up a bit, and most of the
pseudo instructions can be removed.

llvm-svn: 107899
 2010-07-08 19:46:30 +00:00
Jakob Stoklund Olesen 930f8082c3 Implement X86InstrInfo::copyPhysReg 
llvm-svn: 107898
 2010-07-08 19:46:25 +00:00
Bob Wilson 181e5af248 The NEONPreAllocPass should never have to assign fixed registers anymore. 
This pass can go away entirely soon.

llvm-svn: 107892
 2010-07-08 17:45:26 +00:00
Bob Wilson 1eade1a327 For big-endian systems, VLD2/VST2 with 32-bit vector elements will swap the 
words within the 64-bit D registers.  Use VLD1/VST1 with 64-bit elements
instead.

llvm-svn: 107890
 2010-07-08 17:44:00 +00:00
Jim Grosbach dd18ffa302 After r107880, findSurvivorReg() no longer needs to be public. 
llvm-svn: 107887
 2010-07-08 17:27:23 +00:00
Kevin Enderby 082d0fd7ad Added the darwin .weak_def_can_be_hidden directive. 
llvm-svn: 107886
 2010-07-08 17:22:42 +00:00
Gabor Greif d6c96c5a67 only dereference iterator once in the loop 
(by caching the result we save a potentially expensive dereference)

also use typedefs to shorten type declarations

llvm-svn: 107883
 2010-07-08 16:56:18 +00:00
Bob Wilson 6c25043493 Clean up a comment. 
llvm-svn: 107882
 2010-07-08 16:54:45 +00:00
Gabor Greif 59bea00737 remove unneeded parens 
llvm-svn: 107881
 2010-07-08 16:52:57 +00:00
Jim Grosbach c280fc7514 Clean up scavengeRegister() a bit to prefer available regs, which allows 
the simplification of frame index register scavenging to not have to check
for available registers directly and instead just let scavengeRegister()
handle it.

llvm-svn: 107880
 2010-07-08 16:49:26 +00:00
Jakob Stoklund Olesen 00264624a9 Convert EXTRACT_SUBREG to COPY when emitting machine instrs. 
EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.

Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.

llvm-svn: 107879
 2010-07-08 16:40:22 +00:00
Jakob Stoklund Olesen a1e883dcf6 Remove references to INSERT_SUBREG after de-SSA. 
Fix X86InstrInfo::convertToThreeAddressWithLEA to generate COPY instead of
INSERT_SUBREG.

llvm-svn: 107878
 2010-07-08 16:40:15 +00:00
Duncan Sands 242b885798 Use std::vector rather than SmallVector here because SmallVector 
causes some versions of gcc to crash when building LLVM.

llvm-svn: 107869
 2010-07-08 13:06:08 +00:00
Benjamin Kramer 0ae3f08c0d Merge the duplicated iabs optimization in DAGCombiner and let it detected a few more idioms. 
llvm-svn: 107868
 2010-07-08 12:09:56 +00:00
Duncan Sands e17a0a7072 Do not use std::stack because it causes obscure failures when 
compiled with MSVC 2010 (PR7367).  Instead use a SmallVector.

llvm-svn: 107867
 2010-07-08 11:54:27 +00:00