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7667c0bac3
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3747 Commits

Author SHA1 Message Date
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
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
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
Evan Cheng
47d2502072 If true / false blocks fallthrough before ifcvt, add unconditional branches to ifcvt'd block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 01:55:58 +00:00
Dale Johannesen
1cf08c1d6d Remove some unneeded branches. (spotted by Evan, thanks) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37198 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 01:28:58 +00:00
Evan Cheng
86cbfea33b Make use of target specific block size limits; bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37195 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-18 00:20:58 +00:00
Evan Cheng
4f098788d3 Move isSuccessor() offline, change it to use std::find. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37190 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 23:58:53 +00:00
Chris Lattner
3fc5b01d38 disable MaskedValueIsZero, ComputeMaskedBits, and SimplifyDemandedBits for 
i128 integers.  The 64-bit masks are not wide enough to represent the results.
These should be converted to APInt someday.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37169 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 18:19:23 +00:00
Chris Lattner
b429f7303e add expand support for ADDC/SUBC/ADDE/SUBE so we can codegen 128-bit add/sub on 32-bit (or less) targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37168 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 18:15:41 +00:00
Evan Cheng
d60483ef99 Add target hook to specify block size limit for if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37134 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 23:45:53 +00:00
Dale Johannesen
98a6c62aff Don't fold bitconvert(load) for preinc/postdec loads. Likewise stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37130 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 22:45:30 +00:00
Evan Cheng
d6ddc308f0 isBlockPredicable() always ignore terminal instructions; add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37126 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 21:54:37 +00:00
Evan Cheng
c3a289c4b5 Rename M_PREDICATED to M_PREDICABLE; Moved isPredicable() to MachineInstr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37121 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 20:56:08 +00:00
Duncan Sands
53c3a333a4 Output exception call-sites in address order, as required by the unwinding 
runtime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37104 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 12:12:23 +00:00
Chris Lattner
c76d4410ab Use a ptr set instead of a linear search to unique TokenFactor operands. 
This fixes PR1423


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37102 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 06:37:59 +00:00
Evan Cheng
c5d05ef357 Devang points out that we need an assertion here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 05:11:10 +00:00
Evan Cheng
93003b8cf2 Bug fix: should check ABI alignment, not pref. alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37094 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 02:04:50 +00:00
Evan Cheng
4e654852f1 Initial commit of (very basic) if converter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37092 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 02:00:57 +00:00
Dale Johannesen
14ba0cc429 Remove extra CFG edges before doing these passes; it makes them happier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37089 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 21:19:17 +00:00
Lauro Ramos Venancio
b5bb7ffa9c Fix an infinite recursion in GetNegatedExpression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 17:05:43 +00:00
Duncan Sands
49b5c27baa The index into the actions table is a ULEB128 not a SLEB128. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37084 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 13:54:14 +00:00
Reid Spencer
76c94b6169 Un-brain-dead-ify the lowering of part set for the reverse case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37071 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 02:26:52 +00:00
Chris Lattner
c90233b836 Fix some subtle issues handling immediate values. This fixes 
test/CodeGen/ARM/2007-05-14-InlineAsmCstCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37069 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 01:33:58 +00:00
Evan Cheng
19e3f31f6a Added getNumExplicitOperands and findFirstPredOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37064 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 01:26:09 +00:00
Chris Lattner
2944652569 implement a simple fneg optimization/propagation thing. This compiles: 
CodeGen/PowerPC/fneg.ll into:

_t4:
        fmul f0, f3, f4
        fmadd f1, f1, f2, f0
        blr

instead of:

_t4:
        fneg f0, f3
        fmul f0, f0, f4
        fmsub f1, f1, f2, f0
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37054 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 22:04:50 +00:00
Evan Cheng
8dfffd5a07 Only worry about intervening kill if there are more than one live ranges in the interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37052 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 21:23:51 +00:00
Evan Cheng
2f6cb2b14c Fix for PR1406: 
v1 =
r2 = move v1
   = op r2<kill>
...
r2 = move v1
   = op r2<kill>

Clear the first r2 kill if v1 and r2 are joined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37050 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 21:10:05 +00:00
Evan Cheng
8b966d9fd0 When marking a register as being implicitly defined, make sure to clear its partial use info as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37046 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 20:39:18 +00:00
Reid Spencer
9bd57b6561 Give names to the final result values of the part_set computations. This 
just aids in readability and debugability of the output. No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37037 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 17:21:17 +00:00
Anton Korobeynikov
185bc8905a Emit function debug frames in one atom. This will prevent us from generating incorrect assembler in case of both 
debug information & exception information presented.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37019 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-13 17:30:11 +00:00
Anton Korobeynikov
8c7c17354c Emit multiple common EH frames for multiple (including blank) personality 
functions. This partly fixes PR1414: now we're restricted only to one
personality function per eh frame, not per module. Further work on
"multiple personalities" topic needs representative example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37018 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-13 15:42:26 +00:00
Anton Korobeynikov
0ff3ca4f92 More DWARF-related things cleanup: 
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37015 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-12 22:36:25 +00:00
Reid Spencer
5156f5b214 Get the size of auto arrays right, regardless of its changing size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37006 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-12 11:07:40 +00:00
Devang Patel
1e4c23a2d1 Fix http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049516.html 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-11 23:14:43 +00:00
Anton Korobeynikov
22d5c37f32 Perform correct actions numbers/sizes computation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36988 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-11 08:47:35 +00:00
Anton Korobeynikov
29c9cafe46 Fix action No calculation in multiple-invoke-one-LP mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36987 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-11 08:23:57 +00:00
Dale Johannesen
54f4a6780a Do not generate branches to entry block. This fixes several test suite 
failures on PPC (can happen only when prologue code is null)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 23:59:23 +00:00
Anton Korobeynikov
432a7faf03 Ooops. Some debugging stuff :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36978 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 22:38:46 +00:00
Anton Korobeynikov
eeb37e0b80 Allow multiple invokes per landing pad. This (probably) fixes PR1410. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36977 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 22:34:59 +00:00
Duncan Sands
c1fe16610a Later computations assume we are aligned at this point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36975 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 18:40:24 +00:00
Anton Korobeynikov
e25514d0a5 TypeIds are indexed by j, not i 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36974 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 15:10:34 +00:00
Dale Johannesen
76b38fcabe Make tail merging handle many more cases (all it can, I think). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36966 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 01:01:49 +00:00
Evan Cheng
2c4f94363a Can't fold the bit_convert is the store is a truncating store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36962 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-09 21:49:47 +00:00
Anton Korobeynikov
7294b58ecd Do not assert, when case range split metric is zero and JTs are not allowed: just emit binary tree in this case. This 
fixes PR1403.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36959 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-09 20:07:08 +00:00