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2006-11-01Two-address instructions no longer have to be A := A op C. Now any pair of ↵Evan Cheng
dest / src operands can be tied together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31363 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01There can be more than one PHINode at the start of the block.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31362 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Added getTiedToSrcOperand() to check for two-address'ness.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31360 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Clean up.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31359 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Handle PHINode with only one incoming value.Devang Patel
This fixes http://llvm.org/bugs/show_bug.cgi?id=979 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31358 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01CopyFromReg starts a live range so its use should not be considered a floater.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31356 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Make ScalarEvolution actually use a ZeroExtend expression instead ofReid Spencer
having SCZeroExtendExpr be equivalent to SCTruncate git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31355 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01give branch folding a simple heuristic to decide which block to split so thatChris Lattner
it inserts an uncond branch where it is less likely to cause a problem. This fixes some perf issues on ppc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31354 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chompChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01print null values in bssRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31349 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01implement zextload bool and truncstore boolRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31348 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Add a printSetLabel that takes two id's.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31347 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Factor gep instructions through phi nodes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31346 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Turn a phi of many loads into a phi of the address and a single load of theChris Lattner
result. This can significantly shrink code and exposes identities more aggressively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31344 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Fix ldmxcsr JIT encoding.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31343 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Fix a bug in the previous patchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31342 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add.Chris Lattner
This triggers thousands of times on multisource. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31341 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Print jumptable index.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31340 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Remove unnecessary sign conversions made possible by last patch.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31339 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Fix a bug in the interpreter where divides of unmatched signed operandsReid Spencer
would fail. E.g. udiv sint X, Y or sdiv uint X, Y would fail to find a type match in the switch statement and fail the operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31338 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01make tail merging more aggressive. If two blocks share a common tail, but theChris Lattner
tail is not an entire block for either of them, pick one, split it, then merge the common part. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31336 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01enable branch folding with an optionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31335 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01Add constraints to Instruction class.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31332 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31more shotenningAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31331 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Compile CodeGen/PowerPC/fp-branch.ll to:Chris Lattner
_intcoord_cond_next55: LBB1_3: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 blt cr0, LBB1_2 ;cond_next62.exitStub LBB1_1: ;bb72.exitStub li r3, 1 blr LBB1_2: ;cond_next62.exitStub li r3, 0 blr instead of: _intcoord_cond_next55: LBB1_3: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 bge cr0, LBB1_1 ;bb72.exitStub LBB1_4: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 bnu cr0, LBB1_2 ;cond_next62.exitStub LBB1_1: ;bb72.exitStub li r3, 1 blr LBB1_2: ;cond_next62.exitStub li r3, 0 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31330 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31look through isunordered to inline it into branch blocks.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31328 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Nuke dead code.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31327 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31allow the address of a global to be used with the "i" constraint when inChris Lattner
-static mode. This implements PR882. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31326 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31implement the 'c' inline asm modifier characterChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31325 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31handle global address constant sdnodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31323 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Let us play simplify the td file (and fix a few missed sub and mul patterns).Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31322 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31handle "st" as "st(0)"Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31TargetLowering::isOperandValidForConstraintChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31319 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Change the prototype for TargetLowering::isOperandValidForConstraintChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31318 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31generalize the fix for PR977 to also fixChris Lattner
Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31317 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Add all that branch mangling niftinessAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31313 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31add support for calling functions when the caller has variable sized objectsRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31312 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-311. Clean up code due to changes in SwitchTo*Section(2)Anton Korobeynikov
2. Added partial debug support for mingw\cygwin targets (the same as Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format for storing debug info by default, thus many (runtime) libraries has this information included. These formats shouldn't be mixed in one binary ('stabs' & 'DWARF'), otherwise binutils tools will be confused. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31311 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Turn an assert into an error message. This is commonly triggered whenChris Lattner
we don't support a specific constraint yet. When this happens, print the unsupported constraint. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31310 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Unbreaking static ctors patch.Anton Korobeynikov
Defaulting second arguments of SwitchTo*Section, this should make things somehow clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31306 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Fix a typo which can break jumptables.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31305 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Make this compile again.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31304 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31Apply Aton's LLVM patch for PR973: Linux ctors / dtors support.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31303 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Fix a problem introduced by a last-minute change (logic negation).Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31302 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30fix miscompilation of llvm.isunordered, where we branched on the oppositeChris Lattner
condition. This fixes miscompilation of Olden/bh and many others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31301 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4Reid Spencer
generated object modules to be debugged with gdb. Hopefully this helps pre-release debugging. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31299 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30fix wonky indentationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Update comment. Valid option is -debug-pass=Structures.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31297 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Switch abbreviations to use the folding set.a.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31296 91177308-0d34-0410-b5e6-96231b3b80d8
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