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2008-05-01fix typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01instcombine does memset optzns.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50518 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01simplifylibcalls doesn't optimize llvm.memmove, instcombine does.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01move some tests from libcall optimizer suite.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30Really commit the test checking the argument lowering behaviour on x86-64 :).Arnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30Tail call optimization improvements:Arnold Schwaighofer
Move platform independent code (lowering of possibly overwritten arguments, check for tail call optimization eligibility) from target X86ISelectionLowering.cpp to TargetLowering.h and SelectionDAGISel.cpp. Initial PowerPC tail call implementation: Support ppc32 implemented and tested (passes my tests and test-suite llvm-test). Support ppc64 implemented and half tested (passes my tests). On ppc tail call optimization is performed if caller and callee are fastcc call is a tail call (in tail call position, call followed by ret) no variable argument lists or byval arguments option -tailcallopt is enabled Supported: * non pic tail calls on linux/darwin * module-local tail calls on linux(PIC/GOT)/darwin(PIC) * inter-module tail calls on darwin(PIC) If constraints are not met a normal call will be emitted. A test checking the argument lowering behaviour on x86-64 was added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30Move this test to LoopDeletion, where it now passes.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30move lowering of llvm.memset -> store from simplify libcalls Chris Lattner
to instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30no reason for simplifylibcalls to simplify intrinsics, instcombine doesChris Lattner
a fine job. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30remove redundant check.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50469 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Fix a bug in memcpyopt where the memcpy-memcpy transform was never being ↵Owen Anderson
applied because we were checking for it in the wrong order. This caused a miscompilation because the return slot optimization assumes that the call it is dealing with is NOT a memcpy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29don't eliminate load from volatile value on paths where the load is dead.Chris Lattner
This fixes the second half of PR2262 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29make this test reduced and *valid*Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50429 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29fix a subtle volatile handling bug.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29new testcase for PR2094. The inline asms should not pin allocas to theChris Lattner
stack anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29don't delete the last store to an alloca if the store is volatile.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29make the vector conversion magic handle multiple results.Chris Lattner
We now compile test2/test3 to: _test2: ## InlineAsm Start set %xmm0, %xmm1 ## InlineAsm End addps %xmm1, %xmm0 ret _test3: ## InlineAsm Start set %xmm0, %xmm1 ## InlineAsm End paddd %xmm1, %xmm0 ret as expected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29add support for multiple return values in inline asm. This is a step Chris Lattner
towards PR2094. It now compiles the attached .ll file to: _sad16_sse2: movslq %ecx, %rax ## InlineAsm Start %ecx %rdx %rax %rax %r8d %rdx %rsi ## InlineAsm End ## InlineAsm Start set %eax ## InlineAsm End ret which is pretty decent for a 3 output, 4 input asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50386 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Another extract_subreg coalescing bug.Evan Cheng
e.g. vr1024<2> extract_subreg vr1025, 2 If vr1024 do not have the same register class as vr1025, it's not safe to coalesce this away. For example, vr1024 might be a GPR32 while vr1025 might be a GPR64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Add -march=x86.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Update and_ops.ll according to the recent dagcombiner changes.Dan Gohman
Add a new test, and_ops_more.ll, which is XFAIL'd, to record the parts of and_ops.ll that were affected by this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50379 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Test case.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50377 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Fix DSE to not eliminate volatile loads with no uses.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50370 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Teach InstCombine's ComputeMaskedBits what SelectionDAG'sDan Gohman
ComputeMaskedBits knows about cttz, ctlz, and ctpop. Teach SelectionDAG's ComputeMaskedBits what InstCombine's knows about SRem. And teach them both some things about high bits in Mul, UDiv, URem, and Sub. This allows instcombine and dagcombine to eliminate sign-extension operations in several new cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28Fix PR2256, yet another miscompilation in simplifycfg of iChris Lattner
multiple return values. Bill, please pull this into Tak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27Implement a signficant optimization for inline asm:Chris Lattner
When choosing between constraints with multiple options, like "ir", test to see if we can use the 'i' constraint and go with that if possible. This produces more optimal ASM in all cases (sparing a register and an instruction to load it), and fixes inline asm like this: void test () { asm volatile (" %c0 %1 " : : "imr" (42), "imr"(14)); } Previously we would dump "42" into a memory location (which is ok for the 'm' constraint) which would cause a problem because the 'c' modifier is not valid on memory operands. Isn't it great how inline asm turns 'missed optimization' into 'compile failed'?? Incidentally, this was the todo in PowerPC/2007-04-24-InlineAsm-I-Modifier.ll Please do NOT pull this into Tak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26When SRoA'ing a global variable, make sure the new globals get the Chris Lattner
appropriate alignment. This fixes a miscompilation of 252.eon on x86-64 (rdar://5891920). Bill, please pull this into Tak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Feedback from chrisNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50305 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Add a testcase for the recent "handle variable vector insert elt in mem" patchNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50303 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Update tests.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50293 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Special handling for MMX values being passed in either GPR64 or lower ↵Evan Cheng
64-bits of XMM registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Remove the code from CodeGenPrepare that moved getresult instructionsDan Gohman
to the block that defines their operands. This doesn't work in the case that the operand is an invoke, because invoke is a terminator and must be the last instruction in a block. Replace it with support in SelectionDAGISel for copying struct values into sequences of virtual registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50274 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Update testAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50272 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989Nick Lewycky
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25MMX argument passing fixes:Evan Cheng
On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2]. On Darwin / Linux x86-32, v1i64 values are passed in memory. On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7]. On Darwin x86-64, v1i64 values are passed in 64-bit GPRs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Loosen up an assertion to allow intrinsics. I really have noChris Lattner
idea what this code (findNonImmUse) does, so I'm only guessing that this is the right thing. It would be really really nice if this had comments and perhaps switched to SmallPtrSet (hint hint) :) This fixes rdar://5886601, a crash on gcc.target/i386/sse4_1-pblendw.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Don't infininitely thread branches when a threaded edgeChris Lattner
goes back to the block, e.g.: Threading edge through bool from 'bb37.us.thread3829' to 'bb37.us' with cost: 1, across block: bb37.us: ; preds = %bb37.us.thread3829, %bb37.us, %bb33 %D1361.1.us = phi i32 [ %tmp36, %bb33 ], [ %D1361.1.us, %bb37.us ], [ 0, %bb37.us.thread3829 ] ; <i32> [#uses=2] %tmp39.us = icmp eq i32 %D1361.1.us, 0 ; <i1> [#uses=1] br i1 %tmp39.us, label %bb37.us, label %bb42.us git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Fix bug in x86 memcpy / memset lowering. If there are trailing bytes not ↵Evan Cheng
handled by rep instructions, a new memcpy / memset is introduced for them. However, since source / destination addresses are already adjusted, their offsets should be zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24New test.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50229 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24Add EXTRA_OPTIONS on the llvmgxx command line.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50217 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24Add EXTRA_OPTIONS on the llvmgcc command line.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50216 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24Split some code out of the main SimplifyCFG loop into its own function.Chris Lattner
Fix said code to handle merging return instructions together correctly when handling multiple return values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Fix tests due to llvm2cpp move to llc targetAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50191 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Add support to codegen for getresult instructions with undef operands.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Disable stack realignment for these testsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Fix test becase ABI stack alignment dropped to 'normal' valueAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50171 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Fix test, instruction count is valid only if stack is not realignedAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50170 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Rewrite multiple return value handling in SCCP. Before, the -sccp passChris Lattner
would turn every getresult instruction into undef. This helps with rdar://5778210 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23remove this testcase. It isn't testing loop rotate, it is testing allChris Lattner
of -std-compile-opts and is now failing because other passes are generating IR that looks different to input of loop rotate. Devang, please introduce a testcase that only runs loop rotate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50136 91177308-0d34-0410-b5e6-96231b3b80d8
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