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Author SHA1 Message Date
Akira Hatanaka
d37776d1c1 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:39:54 +00:00
Jim Grosbach
1585ce7e8c Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131757 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:35:39 +00:00
Jim Grosbach
2b6f7117f5 Add support for frame info use of the .cfi_def_cfa directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:23:17 +00:00
Jim Grosbach
ae8e829d39 Add missing leading \t when printing .cfi_def_cfa in the asmstreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131755 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:22:37 +00:00
Akira Hatanaka
6ffbf82e22 Define functions that get/set maximum call frame size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131752 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:11:17 +00:00
Rafael Espindola
b8adb8af0f adds some attributes to attribute section when cpu is "xscale" 
(this is what used in Android NDK, when architecture is ARMv5)

patch by Koan-Sin Tan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131751 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:10:34 +00:00
Rafael Espindola
298c8e12ea fixes target address tBL and tBLX and sets relocation type 
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)

Patch by koan-sin tan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131748 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:01:01 +00:00
Argyrios Kyrtzidis
6d5502eb49 Add asserts in StringRef to make sure we avoid undefined behavior: 
-strlen should not be called with NULL. Also guarantee that StringRef's Length is 0 if Data is NULL.
-memcmp should not be called with NULL (even if size is 0)

Patch by Matthieu Monrocq!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131747 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 19:24:12 +00:00
Stuart Hastings
0e29ed081b Re-commit 131641 with fixes; de-pseudoize MOVSX16rr8 and friends. 
rdar://problem/8614450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131746 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 19:04:40 +00:00
Akira Hatanaka
17a1e87751 Make $fp and $ra callee-saved registers and let PrologEpilogInserter handle 
saving and restoring them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131745 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:39:33 +00:00
Andrew Trick
f85092c255 indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs. 
No functionality enabled by default. Use -disable-iv-rewrite.
Extended IVUsers to keep track of the phi that represents the users' IV.
Added the WidenIV transform to replace a narrow IV with a wide IV
by doing a one-for-one replacement of IV users instead of expanding the
SCEV expressions. [sz]exts are removed and truncs are inserted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131744 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:25:42 +00:00
Charles Davis
cde87e2377 Now that they're implemented, make the Win64 EH MCAsmStreamer methods call 
super.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131743 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:19:22 +00:00
Chad Rosier
5def9657e4 Fixed regression due to commit 131709, which disables vararg tail call optimizations on Win64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131740 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 17:49:39 +00:00
Evan Cheng
0b65599015 Revert accidental commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131739 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 17:38:48 +00:00
Charles Davis
d0b76d0004 "Implement" the HandlerData Win64 EH method in the base MCStreamer. 
There's really nothing to implement. All this really does is swap to a
pseudo-section that later gets written to the unwind info struct. That
needs to be implemented in the object streamers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131734 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 16:06:22 +00:00
Benjamin Kramer
eb274e6bdd Rename the "sandybridge" subtarget to "corei7-avx", for GCC compatibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131730 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 15:11:26 +00:00
Benjamin Kramer
6e35e4c8c1 Remove noisy semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131724 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 09:20:25 +00:00
Cameron Zwarich
21a70bf4a5 Fix PR9960 by teaching SimpleRegisterCoalescing::AdjustCopiesBackFrom() to preserve 
the phikill flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131717 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 03:54:04 +00:00
Andrew Trick
074397d75e indvars: minor cleanup in preparation for sign/zero extend elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131716 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 03:37:48 +00:00
Akira Hatanaka
cd0f90f831 Fix bug in which nodes that write to argument registers do not get glued with the JALR node. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131714 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 02:30:51 +00:00
Akira Hatanaka
d992f6c666 Remove code that creates unnecessary frame objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131711 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 01:45:06 +00:00
Akira Hatanaka
da0a3571d6 Define variables and functions in MipsFunctionInfo. 
This is the first of a series of patches that attempt to simplify handling of 
stack frame objects. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131710 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 01:17:58 +00:00
Chad Rosier
a166089f36 Don't attempt to tail call optimize for Win64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 00:59:28 +00:00
Evan Cheng
2e6496026f Revert r131664 and fix it in instcombine instead. rdar://9467055 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131708 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 00:54:37 +00:00
Cameron Zwarich
5a4b3d8c8f Fix PR9955 by only attaching load memory operands to load instructions and 
similarly for stores. Now "make check" passes with the MachineVerifier forced
on with the VerifyCoalescing option!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131705 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 23:44:34 +00:00
Eli Friedman
dc51575a5f Add fast-isel support for zeroext and signext ret instructions on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131689 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 22:16:13 +00:00
Rafael Espindola
78ff647e44 Looks like OS X assemblers (including MC) don't like 
foo:
bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131687 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 22:05:56 +00:00
Rafael Espindola
a6f2678f08 Misc code refactorings: 
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131683 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:40:34 +00:00
Eric Christopher
2bbecd8f6d Oddly people want to use the 'r' constraint for fp constants on x86. 
Fixes rdar://9218925
Fixes PR9601


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131682 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:33:47 +00:00
Charles Davis
61558aaf4f Implement the EndProlog Win64 EH method on the base MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131679 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:24:54 +00:00
Cameron Zwarich
3a2d255ce6 Fix PR9947 by placing OPFL_MemRefs on the node using memory operands rather than 
the root if there is only one such node. This leaves only 2 verifier failures in
the entire test suite when running "make check".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131677 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:13:30 +00:00
Eli Friedman
24a69c7be2 Fix up this test to use explicit triples (Win64 passes a different number of arguments in registers). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131676 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:13:08 +00:00
Jason W Kim
861b9c6a39 This fixes one divergence between LLVM and binutils for ARM in the 
text section.

Assume the following bit of annotated assembly:

.section	.data.rel.ro,"aw",%progbits
.align	2
.LAlpha:
.long	startval(GOTOFF)

.text
.align	2
.type	main,%function
.align	4

main: ;;; assume "main" starts at offset 0x20
0x0	push	{r11, lr}
0x4	movw	r0, :lower16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-4) + 8) = -20
0x8	movt	r0, :upper16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-8) + 8) = -16
0xc	... blah

.LBeta:
0x10	add	r0, pc, r0
0x14	... blah

.LGamma:
0x18	add	r1, pc, r1

Above snippet results in the following relocs in the .o file for the
first pair of movw/movt instructions

00000024 R_ARM_MOVW_PREL_NC .LAlpha
00000028 R_ARM_MOVT_PREL .LAlpha

And the encoded instructions in the .o file for main: must be

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec i.e. -20
28:	e34f0ff0 movt	r0, #65520	; 0xfff0 i.e. -16

However, llc (prior to this commit) generates the following sequence

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec - i.e. -20
28:	e34f0fff movt	r0, #65535	; 0xffff - i.e. -1

What has to happen in the ArmAsmBackend is that if the relocation is PC
relative, the 16 bits encoded as part of movw and movt must be both addends,
not addresses. It makes sense to encode addresses by right shifting the value
by 16, but the result is incorrect for PIC.
i.e., the right shift by 16 for movt is ONLY valid for the NON-PCRel case.

This change agrees with what GNU as does, and makes the PIC code run.

MC/ARM/elf-movt.s covers this case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131674 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:55:25 +00:00
Devang Patel
d3a1788da1 Reapply r131605. This time with a fix, which is to use NoFolder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131673 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:52:46 +00:00
Rafael Espindola
a3bff99f0a ADD64ri32 sign extends its argument, so we need to use a R_X86_64_32S. 
Fixes PR9934.

We really need to start tblgening the relocation info :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131669 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:32:34 +00:00
Akira Hatanaka
a1a7ba8382 Align i64 arguments to 64 bit boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131668 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:29:48 +00:00
Charles Davis
c3b162857a Implement the Win64 EH prolog instruction methods on the base MCStreamer. 
I had to change the API slightly to avoid overloading issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131666 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 19:35:55 +00:00
Eli Friedman
097f9a94f6 Fix up the new StandardPasses to run the same scalarrepl passes as the old one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131665 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 19:14:54 +00:00
Evan Cheng
0efaa5e6a1 crc32 with 64-bit output zeros upper 32-bits. rdar://9467055 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131664 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:57:12 +00:00
Stuart Hastings
3dfc4b1222 Update some currently-disabled code, preparing for eventual use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131663 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:48:20 +00:00
Akira Hatanaka
59d266029c Increase number of available registers when target is MIPS32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131660 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:25:03 +00:00
Evan Cheng
aaa7f499c1 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131659 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:18:39 +00:00
Akira Hatanaka
95b8ae190e Simplify CC_MipsO32 and merge it with CC_MipsO32_VarArgs. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131657 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:06:05 +00:00
Joerg Sonnenberger
f8cd708f14 Reapply 131644 including the missing header changes: 
Introduce -fatal-assembler-warnings for the obvious purpose


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131655 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:00:13 +00:00
Stuart Hastings
d22f036c2a Reverting 131641 to investigate 'bot complaint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131654 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:54:42 +00:00
Eli Friedman
8bd71a1ec1 Revert r131644; it's breaking the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:48:09 +00:00
Charles Davis
440596ffe5 Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) Make 
ours compatible with GAS.

In retrospect, I should have emailed binutils about this earlier. Thanks to
Kai Tietz for pointing out that GAS already had SEH directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131652 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:46:39 +00:00
Jim Grosbach
6635b04a43 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131649 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:34:53 +00:00
Joerg Sonnenberger
bae1c924ce Introduce -fatal-assembler-warnings for the obvious purpose 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131644 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:27:01 +00:00
Akira Hatanaka
d48cfaec35 Fix data layout string. i64 is aligned to 64 bit boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131642 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:21:09 +00:00