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* Test case for fp logical instructions.Evan Cheng2008-09-221-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56474 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the calling convention used when tail call optimization is enabled ↵Arnold Schwaighofer2008-09-223-3/+3
| | | | | | from CC_X86_32_TailCall to CC_X86_32_FastCC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56436 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2808. When regalloc runs out of register, it spill a physical register ↵Evan Cheng2008-09-201-0/+22
| | | | | | around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56381 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up the test.Evan Cheng2008-09-201-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56380 91177308-0d34-0410-b5e6-96231b3b80d8
* No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it.Evan Cheng2008-09-201-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56378 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor X86SelectConstAddr, folding it into X86SelectAddress. ThisDan Gohman2008-09-191-1/+1
| | | | | | | | results in better code for globals. Also, unbreak the local CSE for GlobalValue stub loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-materalized definition instructions may be dead. Whack them.Evan Cheng2008-09-191-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56352 91177308-0d34-0410-b5e6-96231b3b80d8
* Add test for improvement of readonly to readnone,Duncan Sands2008-09-191-3/+12
| | | | | | | and non-demotion of readnone to readonly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56344 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn on these tests!Duncan Sands2008-09-191-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56343 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the MarkModRef pass (use AddReadAttrs instead).Duncan Sands2008-09-191-1104/+0
| | | | | | | | | Unfortunately this means removing one regression test of GlobalsModRef because I couldn't work out how to perform it without MarkModRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56342 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new pass AddReadAttrs which works out which functionsDuncan Sands2008-09-194-4/+4
| | | | | | | | | | can get the readnone/readonly attributes, and gives them it. The plan is to remove markmodref (which did the same thing by querying GlobalsModRef) and delete the analogous functionality from GlobalsModRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56341 91177308-0d34-0410-b5e6-96231b3b80d8
* Test the callgraph directly for the missing edge.Duncan Sands2008-09-191-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56338 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach -callgraph to always print the callgraph (as theDuncan Sands2008-09-193-3/+3
| | | | | | | | | description says it does), not just when -analyze is used as well. This means printing to stderr, so adjust some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56337 91177308-0d34-0410-b5e6-96231b3b80d8
* splitLoop does not handle split condition EQ.Devang Patel2008-09-181-0/+38
| | | | | | | Fixes PR 2805 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56321 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a bit to mark operands of asm's that conflictDale Johannesen2008-09-171-0/+24
| | | | | | | | | | | with an earlyclobber operand elsewhere. Propagate this bit and the earlyclobber bit through SDISel. Change linear-scan RA not to allocate regs in a way that conflicts with an earlyclobber. See also comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56290 91177308-0d34-0410-b5e6-96231b3b80d8
* Unallocatable registers do not have live intervals.Evan Cheng2008-09-171-0/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56287 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not hoist instruction above branch condition. The instruction may use ↵Devang Patel2008-09-171-0/+18
| | | | | | branch condition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56286 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not ignore iv uses outside the loop.Devang Patel2008-09-173-4/+80
| | | | | | | This one slipped through cracks very well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56284 91177308-0d34-0410-b5e6-96231b3b80d8
* Add trampoline support to PPC. GCC simply calls the "__trampoline_setup"Bill Wendling2008-09-171-0/+166
| | | | | | | function with appropriate parameters. This allows us to support blocks on PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56267 91177308-0d34-0410-b5e6-96231b3b80d8
* Finally re-apply r46959. This is made feasible by the combinationDan Gohman2008-09-162-3/+4
| | | | | | | of r56230, r56232, and r56246. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56247 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve instcombine's handling of integer min and max in two ways:Dan Gohman2008-09-162-0/+107
| | | | | | | | | | | | | | | | | - Recognize expressions like "x > -1 ? x : 0" as min/max and turn them into expressions like "x < 0 ? 0 : x", which is easily recognizable as a min/max operation. - Refrain from folding expression like "y/2 < 1" to "y < 2" when the comparison is being used as part of a min or max idiom, like "y/2 < 1 ? 1 : y/2". In that case, the division has another use, so folding doesn't eliminate it, and obfuscates the min/max, making it harder to recognize as a min/max operation. These benefit ScalarEvolution, CodeGen, and anything else that wants to recognize integer min and max. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56246 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix test to account for no more whitespace and that one of the matches is theBill Wendling2008-09-161-2/+2
| | | | | | | "declare" statement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56241 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove space that was forgotten.`Bill Wendling2008-09-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56240 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix spacing in the grep line for this test, following the recentDan Gohman2008-09-161-1/+1
| | | | | | | SCEV-whitespace changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56234 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enables the new vector select in the bitcode reader, by modifying theDan Gohman2008-09-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | bitcode reader/writer as follows: - add and use new bitcode FUNC_CODE_INST_VSELECT to handle the llvm select opcode using either i1 or [N x i1] as the selector. - retain old BITCODE FUNC_CODE_INST_SELECT in the bitcode reader to handle select on i1 for backwards compatibility with existing bitcode files. - re-enable the vector-select.ll test program. Also, rename the recently added bitcode opcode FUNC_CODE_INST_VCMP to FUNC_CODE_INST_CMP2 and make the bitcode writer use it to handle fcmp/icmp on scalars or vectors. In the bitcode writer, use FUNC_CODE_INST_CMP for vfcmp/vicmp only. In the bitcode reader, have FUNC_CODE_INST_CMP handle icmp/fcmp returning bool, for backwards compatibility with existing bitcode files. Patch by Preston Gurd! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56233 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach ScalarEvolution to consider loop preheaders in the search forDan Gohman2008-09-152-0/+234
| | | | | | | | an if statement that guards a loop, to allow indvars to avoid smax operations in more situations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56232 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach LSR to optimize away SMAX operations for tripcounts in commonDan Gohman2008-09-151-0/+236
| | | | | | | | | | cases. See the comment above OptimizeSMax for the full story, and the testcase for an example. This cancels out a pessimization commonly attributed to indvars, and will allow us to lift some of the artificial throttles in indvars, rather than add new ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56230 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-enable SelectionDAG CSE for calls. It matters in the case ofDan Gohman2008-09-151-0/+30
| | | | | | | libcalls, as in this testcase on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56226 91177308-0d34-0410-b5e6-96231b3b80d8
* Added testcase for bswap allegrexel intrinsicBruno Cardoso Lopes2008-09-151-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56225 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly update kill infos after extending a live range and merge 2 val#'s; ↵Evan Cheng2008-09-151-0/+29
| | | | | | fix 56165 - do not mark val# copy field if the copy does not define the val#. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56199 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix WriteAsOperand to not emit a leading space character. AdjustDan Gohman2008-09-1410-10/+10
| | | | | | | | | | | | | | | | | | | its callers to emit a space character before calling it when a space is needed. This fixes several spurious whitespace issues in ScalarEvolution's debug dumps. See the test changes for examples. This also fixes odd space-after-tab indentation in the output for switch statements, and changes calls from being printed like this: call void @foo( i32 %x ) to this: call void @foo(i32 %x) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56196 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2792: treat volatile loads as writing memory somewhere.Duncan Sands2008-09-131-0/+9
| | | | | | | Treat stores as reading memory, just to play safe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56188 91177308-0d34-0410-b5e6-96231b3b80d8
* On some targets, non-move instructions can become move instructions because ↵Evan Cheng2008-09-121-0/+254
| | | | | | | | | | | | | of coalescing. e.g. vr2 = OR vr0, vr1 => vr2 = OR vr1, vr1 // after coalescing vr0 with vr1 Update the value# of the destination register with the copy instruction if that happens. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56165 91177308-0d34-0410-b5e6-96231b3b80d8
* On 64-bit targets, change 32-bit getelementptr indices to be 64-bitDan Gohman2008-09-111-0/+58
| | | | | | | | getelementptr indices, inserting an explicit cast if necessary. This helps expose the sign-extension operation to other optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56133 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a vectorshuffle instcombine bug introduced by r55995.Dan Gohman2008-09-112-0/+39
| | | | | | | Patch by Nicolas Capens! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56129 91177308-0d34-0410-b5e6-96231b3b80d8
* Add indirect tail call (function pointer) examples.Arnold Schwaighofer2008-09-112-0/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56127 91177308-0d34-0410-b5e6-96231b3b80d8
* When tailcallopt is enabled all fastcc calls must have an aligned argument ↵Arnold Schwaighofer2008-09-111-0/+24
| | | | | | stack size. Add a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56119 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2748. Avoid coalescing physical register with virtual register which ↵Evan Cheng2008-09-111-0/+33
| | | | | | | | | | | | would create illegal extract_subreg. e.g. vr1024 = extract_subreg vr1025, 1 ... vr1024 = mov8rr AH If vr1024 is coalesced with AH, the extract_subreg is now illegal since AH does not have a super-reg whose sub-register 1 is AH. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56118 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2783 - coalescer bug. Missing a TargetRegisterInfo::isVirtualRegister ↵Evan Cheng2008-09-111-0/+38
| | | | | | check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56112 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate subreg index when promoting a load to a copy.Evan Cheng2008-09-111-0/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56085 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an icmp+sdiv optimization to check for and handle an overflowDan Gohman2008-09-101-0/+8
| | | | | | | condition. This fixes PR2740. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the ↵Evan Cheng2008-09-102-0/+46
| | | | | | hidden struct ptr; Re-enable fastcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56061 91177308-0d34-0410-b5e6-96231b3b80d8
* Legalizer was missing code that expand fpow to a libcall.Evan Cheng2008-09-091-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56028 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove. Devang Patel2008-09-091-58/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56018 91177308-0d34-0410-b5e6-96231b3b80d8
* if loop induction variable is always sign or zero extended then Devang Patel2008-09-091-0/+58
| | | | | | | extend the type of induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56017 91177308-0d34-0410-b5e6-96231b3b80d8
* fix overflow check.Devang Patel2008-09-091-0/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56011 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2757. Ignore liveinterval register allocation preference if the ↵Evan Cheng2008-09-091-0/+65
| | | | | | preference register is not in the right register class. This can happen due to sub-register coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56006 91177308-0d34-0410-b5e6-96231b3b80d8
* Resolve aliases, when possibleAnton Korobeynikov2008-09-091-0/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56001 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SimplifyDemandedVectorElts simplify vectors with multipleDan Gohman2008-09-091-0/+33
| | | | | | | | | | | | | users, and teach it about shufflevector instructions. Also, fix a subtle bug in SimplifyDemandedVectorElts' insertelement code. This is a patch that was originally written by Eli Friedman, with some fixes and cleanup by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55995 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct callgraph construction. It has two problems:Duncan Sands2008-09-093-0/+22
| | | | | | | | | | | | | | | | | | | | (1) code left over from the days of ConstantPointerRef: if a use of a function is a GlobalValue then that is not considered a reason to add an edge from the external node, even though the use may be as an initializer for an externally visible global! There might be some point to this behaviour when the use is by an alias (though the code predated aliases by some centuries), but I think PR2782 is a better way of handling that. (2) If function F calls function G, and also G is a parameter to the call, then an F->G edge is not added to the callgraph. While this doesn't seem to matter much, adding such an edge makes the callgraph more regular. In addition, the new code should be faster as well as simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55987 91177308-0d34-0410-b5e6-96231b3b80d8
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