Evan Cheng
435d499177
Use VLD2q32 / VST2q32 to reload / spill QQ (pair of Q) registers when stack slot is sufficiently aligned. Use VLDMD / VSTMD otherwise.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 02:04:02 +00:00
Evan Cheng
07a6d9391c
Use VSTMD / VLDMD for spills and reloads of Q registers instead of VSTMQ / VLDQ. The later are aliases which ought to be eliminated but we can't because they are used for storing and loading v2f64 values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:54:08 +00:00
Nick Lewycky
403d312c0f
Revert r103133 and add testcase from PR7066.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:45:38 +00:00
Dan Gohman
0d881042c0
When rematerializing, use the debug location of the original
...
instruction, rather than a location near where the new instruction
is being inserted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:28:10 +00:00
Dan Gohman
fb95f89e8e
Transfer debug location information from PHI nodes to resulting
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lowered copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:10:20 +00:00
Dan Gohman
cc751bb99c
Print debug information for SDNodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:09:21 +00:00
Dan Gohman
281d65d004
Disable the new unknown-location code for now. It causes a major
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increase in the debug line info section, and it's causing
regressions in a gdb testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 01:08:53 +00:00
Evan Cheng
c10b5afbe8
Remove VLD1q and VST1q for reloading and spilling Q registers. Just use VLD1q64 / VST1q64 and reference sub-registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 00:24:52 +00:00
Daniel Dunbar
c26ae5ab7e
MC/X86: X86AbsMemAsmOperand is subclass of X86NoSegMemAsmOperand.
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- This fixes "leal 0, %eax", for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 22:39:14 +00:00
Chris Lattner
e1611f26e3
fix rdar://7947167 - llvm-mc doesn't match movsq
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 21:48:14 +00:00
Sean Callanan
1a8b789a4b
Eliminated the classification of control registers into %ecr_
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and %rcr_, leaving just %cr_ which is what people expect.
Updated the disassembler to support this unified register set.
Added a testcase to verify that the registers continue to be
decoded correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 20:59:00 +00:00
Daniel Dunbar
a5d0b54ec1
MC/X86: Error out if we see a non-constant FK_Data_1 or FK_Data_2 fixup, since
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we don't currently support relaxing them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 20:34:01 +00:00
Dan Gohman
34dcc6fadc
Add a DebugLoc argument to TargetInstrInfo::copyRegToReg, so that it
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doesn't have to guess.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103194 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 20:33:48 +00:00
Evan Cheng
746ad69e08
Add argument TargetRegisterInfo to loadRegFromStackSlot and storeRegToStackSlot.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103193 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 19:06:44 +00:00
Evan Cheng
e9b3ac27dd
80 col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103185 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 16:33:12 +00:00
Bob Wilson
429009b0f1
Add a missing break statement to fix unintentional fall-through
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(replacing the previous patch for the same issue).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 16:05:26 +00:00
Jim Grosbach
d31f00b7f7
Fix unintentional fallthrough. Patch by Edmund Grimley-Evans <Edmund.Grimley-Evans@arm.com>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103181 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 15:32:49 +00:00
Shantonu Sen
eae216c6d3
Fix "warning: extra ';' inside a struct or union" when building llvm with clang
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 14:57:47 +00:00
Daniel Dunbar
5fe03c023c
Revert r103137, fix for $ in labels. It looks like we can't actually handle this
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at the token level. Consider the following horrible test case:
a = 1
.globl $a
movl ($a), %eax
movl $a, %eax
movl $$a, %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 14:46:38 +00:00
Evan Cheng
b63387afc6
Re-apply 103156 and 103157. 103156 didn't break anything. 10315 exposed a coalescer bug that's fixed by 103170.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103172 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 06:36:08 +00:00
Evan Cheng
62bb2f63f9
Fixes a coalescer bug that caused llc to crash on 2009-11-30-LiveVariablesBug.ll
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with the fix in 103157.
%reg1039:1<def> = VMOVS %S1<kill>, pred:14, pred:%reg0
is not coalescable since none of the super-registers of S1 are in reg1039's
register class: DPR_VFP2. But it is still a legal copy instruction so it should
not assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 06:23:31 +00:00
Dan Gohman
1ef7c82128
Revert r103157, which broke test/CodeGen/ARM/2009-11-30-LiveVariablesBug.ll.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103163 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 05:08:57 +00:00
Eric Christopher
f865cb5c1f
Revert r103156 since it was breaking the build bots.
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Reverse-merging r103156 into '.':
U lib/Target/ARM/ARMInstrNEON.td
U lib/Target/ARM/ARMRegisterInfo.h
U lib/Target/ARM/ARMBaseRegisterInfo.cpp
U lib/Target/ARM/ARMBaseInstrInfo.cpp
U lib/Target/ARM/ARMRegisterInfo.td
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103159 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 02:29:06 +00:00
Dan Gohman
06572793a7
Handle the case where open(2) or close(2) is interrupted by a signal when
...
automatic syscall restarting is disabled.
Also, fix the build on systems which don't define EWOULDBLOCK.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 02:06:20 +00:00
Evan Cheng
9c35ee2099
Fix an obvious bug in isMoveInstr. It needs to return sub-register indices.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103157 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 01:54:03 +00:00
Evan Cheng
4ffc22ae00
Adding pseudo 256-bit registers QQ0 . . . QQ7 to represent pairs of Q registers. These will be used to model VLD2 / VST2 instructions in order to get substantially better codegen for them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 01:52:03 +00:00
Evan Cheng
d31c5496d7
Cosmetic changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 01:34:11 +00:00
Evan Cheng
7f2f436267
storeRegToStackSlot has forgotten about QPR_8 register class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103154 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 01:32:54 +00:00
Dan Gohman
5fe89d0126
Handle EWOULDBLOCK as EAGAIN. And add a comment explaining why
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EAGAIN and EWOULDBLOCK are used here.
Also, handle the case where a write call is interrupted after
some data has already been written.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 01:27:36 +00:00
Dan Gohman
7539584781
Update LabelsBeforeInsn also, when creating unknown-position labels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 00:29:41 +00:00
Chris Lattner
b4202dbb36
Fix PR7054 - Assertion `Symbol->isUndefined() && "Cannot define a symbol twice!"' failed.
...
Users can write broken code that emits the same label twice with asm renaming,
detect this and emit a fatal backend error instead of aborting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 00:05:37 +00:00
Dan Gohman
97c94b8fc6
In bottom-up mode, defer the materialization of local constant values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103139 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 00:02:14 +00:00
Dan Gohman
a7a0ed7901
Add an "IsBottomUp" member function to FastISel, which will be used to
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support a new bottom-up mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:58:35 +00:00
Chris Lattner
851f87c6c9
fix rdar://7946934 - in some limited cases, the assembler should
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allow $ at the start of a symbol name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103137 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:51:28 +00:00
Jim Grosbach
29402132f3
Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack
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instructions to subtarget features and update tests to reflect.
PR5717.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103136 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:44:43 +00:00
Dan Gohman
1cc0d62855
Emit debug info for MachineInstrs with unknown debug locations, instead
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of just letting them inherit the debug locations of adjacent instructions.
Debug info should aim to be either accurate or absent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:41:32 +00:00
Jakob Stoklund Olesen
51bfd452d5
Fix PR6520. An earlyclobber physreg must not be allocated to anything else.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103133 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 23:07:41 +00:00
Sean Callanan
be192dd1e9
Fixed a sign-extension bug in the X86 disassembler
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that was causing PC-relative branch targets to be
evaluated incorrectly. Also added support for
checking operand values to the llvm-mc tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103128 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 22:47:27 +00:00
Devang Patel
d47f3c803f
Use getValue() for PHINodes when direct NodeMap access does not work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103126 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 22:29:00 +00:00
Evan Cheng
676b2dfd27
Do not pre-allocate references of D registers pairs if they are extracted from the same Q register and are in the right order.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 22:15:40 +00:00
Dan Gohman
9f2cda73e4
No-ops emitted for scheduling don't correspond with anything in the
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user's source, so don't arbitrarily assign them a debug location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 20:58:01 +00:00
Jim Grosbach
b1dc393bd5
Add initial support for ARMv7M subtarget and cortex-m3 cpu. Patch by
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Jordy <snhjordy@gmail.com>.
Followup patches will add some tests and adjust to use Subtarget features
for the instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103119 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 20:44:35 +00:00
Bob Wilson
bc78653057
Use the right version of "append" to combine two SmallVectors.
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This fixes the compile-time regressions seen in last night's tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 20:44:15 +00:00
Daniel Dunbar
2d7fd61e94
MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for
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writing them.
- <rdar://problem/7885351> integrated assembler broken for i386 objc code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:01:05 +00:00
Daniel Dunbar
c304718fd8
MC: Reject attempts to define a variable symbol.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:01:00 +00:00
Daniel Dunbar
8d627d3153
MC: Make setVariableValue check the redefinition condition a bit more strongly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103110 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 19:00:56 +00:00
Evan Cheng
3d720fbc6a
Move REG_SEQUENCE removal to 2addr pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103109 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 18:45:40 +00:00
Chris Lattner
ea03e10fac
Implement rdar://7415680 - Twine integer support lacks greatness
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Microoptimize Twine's with unsigned and int to not pin their value to
the stack. This saves stack space in common cases and allows mem2reg
in the caller. A simple example is:
void foo(const Twine &);
void bar(int x) {
foo("xyz: " + Twine(x));
}
Before:
__Z3bari:
subq $40, %rsp
movl %edi, 36(%rsp)
leaq L_.str3(%rip), %rax
leaq 36(%rsp), %rcx
leaq 8(%rsp), %rdi
movq %rax, 8(%rsp)
movq %rcx, 16(%rsp)
movb $3, 24(%rsp)
movb $7, 25(%rsp)
callq __Z3fooRKN4llvm5TwineE
addq $40, %rsp
ret
After:
__Z3bari:
subq $24, %rsp
leaq L_.str3(%rip), %rax
movq %rax, (%rsp)
movslq %edi, %rax
movq %rax, 8(%rsp)
movb $3, 16(%rsp)
movb $7, 17(%rsp)
leaq (%rsp), %rdi
callq __Z3fooRKN4llvm5TwineE
addq $24, %rsp
ret
It saves 16 bytes of stack and one instruction in this case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 18:40:33 +00:00
Evan Cheng
de8aa4ed9c
Model CONCAT_VECTORS of two 64-bit values as a REG_SEQUENCE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 18:28:36 +00:00
Evan Cheng
d2c2d1809f
Trim include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103103 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 18:27:57 +00:00