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79b48b8bc0
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18975 Commits

Author SHA1 Message Date
Devang Patel
79b48b8bc0 Add dump() routines for debugging assistance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37314 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 19:55:36 +00:00
Anton Korobeynikov
070280e97f Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 11:08:31 +00:00
Chris Lattner
501fee71e0 prevent exponential recursion in isNegatibleForFree 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37310 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 07:35:22 +00:00
Evan Cheng
a13aa95bc8 Preliminary iterative if-conversion support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37309 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 07:23:16 +00:00
Evan Cheng
69d555611a Hooks for predication support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37308 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 07:22:05 +00:00
Evan Cheng
d90733035d Rename a parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37307 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 07:21:11 +00:00
Chris Lattner
f711fb7af8 when merging two alias sets together, be sure to propagate the volatility of 
the inner set.  This fixes PR1435 and Transforms/LICM/2007-05-22-VolatileSink.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 06:36:35 +00:00
Devang Patel
b3b87708eb If user wants to run instcombine twice, do not block it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37301 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 05:08:52 +00:00
Chris Lattner
2b7e0ade62 fix a miscompilation when passing a float through varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37297 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 01:17:04 +00:00
Reid Spencer
4ad513ca15 Reinstate the patch for escaping non-printing characters and allow for 
\\ to escape \. All these cases are now handled by the AsmParser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37295 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 19:27:35 +00:00
Reid Spencer
e2aa96140e Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37294 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 19:08:16 +00:00
Reid Spencer
8ecdbf2d5f Don't allow the UnEscape code to read or write beyond the end of yytext. 
Make sure we convert \\ into \.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37293 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 19:07:45 +00:00
Reid Spencer
0a8a16b727 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37292 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 18:52:55 +00:00
Reid Spencer
6ecdcc1c03 Implement full unescaping of escaped hex characters in all quoted identifiers 
and strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37291 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 18:52:21 +00:00
Dale Johannesen
e6e435498c name change requested by review of previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37289 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 18:31:04 +00:00
Owen Anderson
2b77d3b091 Silence a warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37288 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 18:13:40 +00:00
Dale Johannesen
81da02b553 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37285 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 17:14:46 +00:00
Chris Lattner
9621921acb temporarily revert reid's asmwriter patch, it is missing the asmparser piece 
that decodes the escape sequences, thus breaking all cases that use them.

This fixes test/Assembler/2007-05-21-Escape.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37284 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 07:00:50 +00:00
Chris Lattner
d3bd070540 update comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37282 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 06:56:32 +00:00
Chris Lattner
8e00832ae1 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37281 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 06:47:55 +00:00
Chris Lattner
86fd6304ac simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 06:47:11 +00:00
Bill Wendling
cd6cea0823 We only need to specify the most-implied feature for an architecture. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37275 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 05:15:37 +00:00
Evan Cheng
94679e66bb Fix some -march=thumb regressions. tBR_JTr is not predicable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37272 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 23:17:32 +00:00
Dale Johannesen
f23b8cf239 Use AXI3 not AXI2 for appropriate PIC PC-relative loads and stores. Cosmetic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 22:42:04 +00:00
Evan Cheng
a6b4f43eaa If-convert early exit blocks (returns, etc.); bug fixes, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37270 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 22:22:58 +00:00
Dale Johannesen
86d4069666 Add some patterns for PIC PC-relative loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37269 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 22:14:33 +00:00
Evan Cheng
5a18ebc70c BlockHasNoFallThrough() now returns true if block ends with a return instruction; AnalyzeBranch() should ignore predicated instructionsd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37268 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 18:56:31 +00:00
Duncan Sands
7bf7a446a5 Only emit one entry in the exception action table for each action, even if 
it occurs for multiple landing pads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37267 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 18:50:28 +00:00
Evan Cheng
126f17a176 BlockHasNoFallThrough() now returns true if block ends with a return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37266 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-21 18:44:17 +00:00
Reid Spencer
a24f6dfc90 Get the order of the hext digits right! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37261 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 14:44:42 +00:00
Reid Spencer
922d0bcf8b Adjust how LLVM names are produced: 
1. Always use % for local and @ for global.
2. Replace NameNeedsQuotes with QuoteNameIfNeeded so that any adjustments
   to the name can be done in one pass.
3. Implement generation of hex escapes so we don't get "wonky" characters
   in the output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37260 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 07:25:21 +00:00
Reid Spencer
ed951ea4ec Regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37258 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 07:22:10 +00:00
Reid Spencer
aa7c2f8c03 Make the %"..." syntax legal for local name. This just makes it symmetric 
with global names which can already be @"..."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37257 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 07:21:26 +00:00
Chris Lattner
a2b18de4ba Fix Transforms/InstCombine/2007-05-18-CastFoldBug.ll, a bug that devastates 
objc code due to the way the FE lowers objc message sends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37256 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 06:51:32 +00:00
Reid Spencer
cc442cabf6 On Linux platforms and at optimization levels -O1 and above, llvm-gcc can 
turn "putchar" calls into _IO_putc calls which is a lower-level interface.
This patch allows these calls to be executed by lli in interpreter mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37254 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 01:36:17 +00:00
Chris Lattner
fb3e1190fc Handle negative strides much more optimally. This compiles X86/lsr-negative-stride.ll 
into:

_t:
        movl 8(%esp), %ecx
        movl 4(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_3       #bb17
LBB1_1: #bb
        cmpl %ecx, %eax
        jg LBB1_4       #cond_true
LBB1_2: #cond_false
        subl %eax, %ecx
        cmpl %ecx, %eax
        jne LBB1_1      #bb
LBB1_3: #bb17
        ret
LBB1_4: #cond_true
        subl %ecx, %eax
        cmpl %ecx, %eax
        jne LBB1_1      #bb
        jmp LBB1_3      #bb17

instead of:

_t:
        subl $4, %esp
        movl %esi, (%esp)
        movl 12(%esp), %ecx
        movl 8(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_4       #bb17
LBB1_1: #bb.outer
        movl %ecx, %edx
        negl %edx
LBB1_2: #bb
        cmpl %ecx, %eax
        jle LBB1_5      #cond_false
LBB1_3: #cond_true
        addl %edx, %eax
        cmpl %ecx, %eax
        jne LBB1_2      #bb
LBB1_4: #bb17
        movl (%esp), %esi
        addl $4, %esp
        ret
LBB1_5: #cond_false
        movl %ecx, %edx
        subl %eax, %edx
        movl %eax, %esi
        addl %esi, %esi
        cmpl %ecx, %esi
        je LBB1_4       #bb17
LBB1_6: #cond_false.bb.outer_crit_edge
        movl %edx, %ecx
        jmp LBB1_1      #bb.outer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37252 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 01:22:21 +00:00
Chris Lattner
7667c0bac3 same patch as the previous one, but the symmetric case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37249 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 00:46:51 +00:00
Chris Lattner
2ad913b342 Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in 
this case, the xform introduces an extra operation).  This compiles
PowerPC/compare-duplicate.ll into:

_test:
        subf r2, r3, r4
        cmplw cr0, r2, r3
        bne cr0, LBB1_2 ;F

instead of:

_test:
        slwi r2, r3, 1
        subf r3, r3, r4
        cmplw cr0, r4, r2
        bne cr0, LBB1_2 ;F

This is target independent of course.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37246 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 00:43:44 +00:00
Reid Spencer
20a4c23bcc Fix an assertion introduced by my last change to the toString method. We 
can't use getZExtValue() to extract the low order bits for each digit.
Instead, we need to access the low order word directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37242 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-19 00:29:55 +00:00
Dan Gohman
f5135be3fc Apply this patch: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070514/049845.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37240 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 23:21:46 +00:00
Chris Lattner
60c7a136f3 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37239 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 20:18:14 +00:00
Evan Cheng
7f8ff8af1a Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37237 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 19:32:08 +00:00
Evan Cheng
36489bbbac Change to depth-first traversal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37236 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 19:26:33 +00:00
Dale Johannesen
a469b69dda Document an inefficiency in tail merging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37235 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 18:46:40 +00:00
Dan Gohman
fa0f77d9b7 Use MVT::FIRST_VECTOR_VALUETYPE and MVT::LAST_VECTOR_VALUETYPE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 18:44:07 +00:00
Dan Gohman
fcc4dd91e5 Qualify calls to getTypeForValueType with MVT:: too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37233 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 18:41:29 +00:00
Evan Cheng
cf6cc112d5 Some restructuring in preparation for most aggressive if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37231 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 18:14:37 +00:00
Dan Gohman
b55757ec5f Qualify several calls to functions in the MVT namespace, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37230 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 17:52:13 +00:00
Evan Cheng
6092ca1556 Watch out for blocks that end with a return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37227 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 17:06:53 +00:00
Chris Lattner
b348bb8125 Fix PR1434 and test/Linker/link-archive.ll, this is a regression from 1.9. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 04:02:46 +00:00