Commit Graph

71796 Commits

Author SHA1 Message Date
NAKAMURA Takumi
624dc1d4ab test/CodeGen/X86/shrink-compare.ll: Relax expressions for Win64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130039 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23 00:15:45 +00:00
Owen Anderson
d74ea775af Teach FastISel to deal with instructions that have two immediate operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130033 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 23:38:06 +00:00
Devang Patel
5e06bb83f4 Let front-end tie subprogram declaration with subprogram definition directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130028 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 23:10:17 +00:00
Eric Christopher
3728b4ad8b Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130027 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 23:08:45 +00:00
Jakob Stoklund Olesen
200729882a Always compare the cost of region splitting with the cost of per-block splitting.
Sometimes it is better to split per block, and we missed those cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130025 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 22:47:40 +00:00
Mikhail Glushenkov
3335a99fe8 The .inc file is auto-generated and must not be edited by hand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130021 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 22:05:29 +00:00
Chris Lattner
b686af053e Recommit the fix for rdar://9289512 with a couple tweaks to
fix bugs exposed by the gcc dejagnu testsuite:
1. The load may actually be used by a dead instruction, which
   would cause an assert.
2. The load may not be used by the current chain of instructions,
   and we could move it past a side-effecting instruction. Change
   how we process uses to define the problem away.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130018 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 21:59:37 +00:00
Johnny Chen
597fa65373 Disassembly of A8.6.59 LDR (literal) Encoding T1 (16-bit thumb instruction) should
print out ldr, not ldr.n.

rdar://problem/9267772


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 19:12:43 +00:00
Benjamin Kramer
e7cf062537 DAGCombine: fold "(zext x) == C" into "x == (trunc C)" if the trunc is lossless.
On x86 this allows to fold a load into the cmp, greatly reducing register pressure.
  movzbl	(%rdi), %eax
  cmpl	$47, %eax
->
  cmpb	$47, (%rdi)

This shaves 8k off gcc.o on i386. I'll leave applying the patch in README.txt to Chris :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 18:47:44 +00:00
Devang Patel
eac0c9dc77 Do not leak argument's DbgVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 18:09:57 +00:00
Devang Patel
0a6ea83f39 Add asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129995 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 16:44:29 +00:00
Benjamin Kramer
b20a8fc8a6 X86: Try to use a smaller encoding by transforming (X << C1) & C2 into (X & (C2 >> C1)) & C1. (Part of PR5039)
This tends to happen a lot with bitfield code generated by clang. A simple example for x86_64 is
uint64_t foo(uint64_t x) { return (x&1) << 42; }
which used to compile into bloated code:
	shlq	$42, %rdi               ## encoding: [0x48,0xc1,0xe7,0x2a]
	movabsq	$4398046511104, %rax    ## encoding: [0x48,0xb8,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00]
	andq	%rdi, %rax              ## encoding: [0x48,0x21,0xf8]
	ret                             ## encoding: [0xc3]

with this patch we can fold the immediate into the and:
	andq	$1, %rdi                ## encoding: [0x48,0x83,0xe7,0x01]
	movq	%rdi, %rax              ## encoding: [0x48,0x89,0xf8]
	shlq	$42, %rax               ## encoding: [0x48,0xc1,0xe0,0x2a]
	ret                             ## encoding: [0xc3]

It's possible to save another byte by using 'andl' instead of 'andq' but I currently see no way of doing
that without making this code even more complicated. See the TODOs in the code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129990 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 15:30:40 +00:00
Frits van Bommel
eab631362d Comment out some unused parameter names to silence out-of-tree -Wunused warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 11:36:45 +00:00
Eric Christopher
f4b2f933a9 Use enums for constant values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 06:34:01 +00:00
Eric Christopher
9ab1d7f9b2 Make the file format strings a little prettier for mach-o.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129980 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 04:08:58 +00:00
Eric Christopher
860d7e182a Add MachOObjectFile.cpp to cmake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129978 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 04:06:24 +00:00
Eric Christopher
ea7e13eded Hook in mach-o object files into Object interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 03:50:50 +00:00
Eric Christopher
f0c3af637a Add support for 64-bit object files to Path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129975 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 03:50:19 +00:00
Eric Christopher
6256b03674 Add an ObjectFile implementation for mach-o.
Patch by Patrick Walton!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 03:19:48 +00:00
Eric Christopher
bb498ca5c2 80-col fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129973 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 03:07:06 +00:00
NAKAMURA Takumi
d94d8468c9 include/llvm/Target/TargetAsmInfo.h: Fix a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129972 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:56:59 +00:00
Evan Cheng
db6cbe1ff1 In Thumb2 mode, lower frame indix references to:
add <rd>, sp, #<imm8>
ldr <rd>, [sp, #<imm8>]
When the offset from sp is multiple of 4 and in range of 0-1020.
This saves code size by utilizing 16-bit instructions.

rdar://9321541


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:42:52 +00:00
Evan Cheng
d8a1624122 Typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129970 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:40:20 +00:00
Chandler Carruth
add2944559 Delete the other unused variable in this function. Sorry I missed this
the first time through.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:29:18 +00:00
Chandler Carruth
32bd250d30 Remove an unused variable from a function. This is a likely cut-paste-o.
Silences GCC warning.

I wonder why Clang doesn't warn on this...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129968 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:21:06 +00:00
Bill Wendling
d3dbd5f5cd Branch folding is folding a landing pad into a regular BB.
An exception is thrown via a call to _cxa_throw, which we don't expect to
return. Therefore, the "true" part of the invoke goes to a BB that has
'unreachable' as its only instruction. This is lowered into an empty MachineBB.
The landing pad for this invoke, however, is directly after the "true" MBB.
When the empty MBB is removed, the landing pad is directly below the BB with the
invoke call. The unconditional branch is removed and then the two blocks are
merged together.

The testcase is too big for a regression test.
<rdar://problem/9305728>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129965 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 01:07:09 +00:00
Bob Wilson
c1fe100f35 Define Neon load/store intrinsics for Clang as macros instead of functions.
This is needed so the front-end can see "aligned" attributes on the type
for the pointer arguments.  Radar 9311427.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 00:37:01 +00:00
Rafael Espindola
abf9af60ad Compute the size of the FDE encoding instead of hard coding it. Update
X8664_ELFTargetObjectFile::getFDEEncoding to match reality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22 00:08:43 +00:00
Rafael Espindola
e8cfbd843d Remove unused argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 23:39:26 +00:00
Rafael Espindola
eccbad78e0 Don't pass address spaces to EmitULEB128IntValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 23:26:40 +00:00
Devang Patel
71f3f1146f Fix DWARF description of Q registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129952 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 23:22:35 +00:00
Devang Patel
27f5acb7d4 Fix DWARF description of S registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129947 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 22:48:26 +00:00
Devang Patel
06161fcdd6 Add DW_OP_bit_piece.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129945 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 22:26:13 +00:00
Devang Patel
acc381bee9 Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129938 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 21:07:35 +00:00
Devang Patel
8859df5911 Test case for r129922
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129934 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 20:16:43 +00:00
Jay Foad
ec9186bcf9 PR9214: Convert Metadata API to use ArrayRef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129932 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 19:59:31 +00:00
Matt Beaumont-Gay
ae5fbeec23 Don't recycle loop variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129928 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 19:46:23 +00:00
Jakob Stoklund Olesen
5928046306 Allow allocatable ranges from global live range splitting to be split again.
These intervals are allocatable immediately after splitting, but they may be
evicted because of later splitting. This is rare, but when it happens they
should be split again.

The remainder intervals that cannot be allocated after splitting still move
directly to spilling.

SplitEditor::finish can optionally provide a mapping from new live intervals
back to the original interval indexes returned by openIntv().

Each original interval index can map to multiple new intervals after connected
components have been separated. Dead code elimination may also add existing
intervals to the list.

The reverse mapping allows the SplitEditor client to treat the new intervals
differently depending on the split region they came from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 18:38:15 +00:00
Rafael Espindola
1ac7fe0f4d Fix relative relocations. This is sufficient for running the rust testsuite with
MC :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129923 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 18:36:50 +00:00
Devang Patel
64d3d12f37 As per ARM docs, register Dx is described as DW_OP_regx(256+x) in DWARF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129922 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 17:51:06 +00:00
Devang Patel
2c4b4b195f Add comment in output stream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 17:50:24 +00:00
Daniel Dunbar
63c21deee1 Revert r1296656, "Fix rdar://9289512 - not folding load into compare at -O0...",
which broke a couple GCC test suite tests at -O0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 16:14:46 +00:00
Justin Holewinski
326fb9d1fb PTX: Expand useable register space
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129913 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 16:08:02 +00:00
Che-Liang Chiou
5efde18dd2 ptx: fix parameter ordering
This patch depends on the prior fix r129908 that changes to use std::find,
rather than std::binary_search, on unordered array.

Patch by Dan Bailey


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129909 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 10:56:58 +00:00
Che-Liang Chiou
4a17cad900 ptx: PTXMachineFunctionInfo no longer sort registers and so should not use std::binary_search
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 10:16:20 +00:00
Jakob Stoklund Olesen
69ba413057 Don't allow per-register spill size and alignment.
These values were not used for anything. Spill size and alignment is a property
of the register class, not the register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 03:43:21 +00:00
Nick Lewycky
a4c4c0e129 In gcov profiling, give all functions an extra unified return block. This is
necessary since gcov counts transitions between blocks. It can't see if you've
run every line in a straight-line function, so we add an edge for it to notice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129905 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 03:18:00 +00:00
Nick Lewycky
17df2c3240 Fix think-o: emit all 8 bytes of the EOF marker. Also reflow a line in a
comment for 80 columns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 02:48:39 +00:00
Nick Lewycky
a61e52c9b7 Add independent controls for whether GCOV profiling should emit .gcno files or
instrument the program to emit .gcda.
TODO: we should emit slightly different .gcda files when .gcno emission is off.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 01:56:25 +00:00
Nick Lewycky
333ed454d0 Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129902 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 01:54:08 +00:00