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2010-04-17Add const qualifiers to TargetLoweringObjectFile usage.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101640 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Use const_cast instead of a C-style cast to cast away const.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101639 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Start function numbering at 0.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101638 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Delete now-unnecessary const_casts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Use const qualifiers with TargetLowering. This eliminates severalDan Gohman
const_casts, and it reinforces the design of the Target classes being immutable. SelectionDAGISel::IsLegalToFold is now a static member function, because PIC16 uses it in an unconventional way. There is more room for API cleanup here. And PIC16's AsmPrinter no longer uses TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Postra machine licm must add registers defined by loop invariants to *all* ofEvan Cheng
the live-in sets of BBs in the loop. Otherwise later pass may end up using the registers and override the invariant. rdar://7852937 No reasonablly sized test case possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101626 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Fix codegen passes. -disable-ssc shouldn't disable postra machine licm.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101622 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17More work to allow dag combiner to promote 16-bit ops to 32-bit.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Another 80 col violation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101620 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17As a temporary workaround for post-RA not handling DebugValue instructions,Bob Wilson
just remove them all. Radar 7873207 (working around the root problem of Radar 7759363). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101604 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Revert "Use a simpler data structure to calculate the least recently used ↵Jakob Stoklund Olesen
register in RegAllocLocal." This reverts commit 101392. It broke a buildbot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101595 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Revert 101465, it broke internal OpenGL testing.Eric Christopher
Probably the best way to know that all getOperand() calls have been handled is to replace that API instead of updating. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101579 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Add support to emit dwarf ranges.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101575 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Use a simpler data structure to calculate the least recently used register ↵Jakob Stoklund Olesen
in RegAllocLocal. This makes the local register allocator about 20% faster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101574 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16(i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test ↵Evan Cheng
case until -promote-16bit is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Create a new TargetSelectionDAGInfo class. This will eventually acquireDan Gohman
SelectionDAG-specific parts of TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Commit this, which should have accompanied 101531.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101532 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-1680 col.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101501 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-1680 col.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Avoid creating virtual registers for unused values.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Fix an assertion string.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Fix a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16reapply r101434Gabor Greif
with a fix for self-hosting rotate CallInst operands, i.e. move callee to the back of the operand array the motivation for this patch are laid out in my mail to llvm-commits: more efficient access to operands and callee, faster callgraph-construction, smaller compiler binary git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16The JIT calls TidyLandingPads to tidy up the landing pads. However, because theBill Wendling
JIT doesn't use the MC back-end asm printer to emit labels that it uses, the section for the MCSymbol is never set. And thus the MCSymbol for the EH label isn't marked as "defined". Because of that, TidyLandingPads removes the needed landing pads from the JIT output. This breaks EH for every JIT program. This is a work-around for this limitation. We pass in the label locations map. If the label has a non-zero value, then it was "emitted" by the JIT and TidyLandingPads shouldn't remove that label. A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely upon the section being set to determine if it's defined or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Adding support for dag combiner to promote operations for profit. This ↵Evan Cheng
requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding. x86 support is off by default. It can be enabled with -promote-16bit. Work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Refine further the scope where the global DebugLoc value is active.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16back out r101423 and r101397, they break llvm-gcc self-host on darwin10Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Avoid sinking machine instructions into a loop.Jakob Stoklund Olesen
MachineLoopInfo is already available when MachineSinking runs, so the check is free. There is no test case because it would require a critical edge into a loop, and CodeGenPrepare splits those. This check is just to be extra careful. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101420 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15reapply r101364, which has been backed out in r101368Gabor Greif
with a fix rotate CallInst operands, i.e. move callee to the back of the operand array the motivation for this patch are laid out in my mail to llvm-commits: more efficient access to operands and callee, faster callgraph-construction, smaller compiler binary git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix PR6847. RegScavenger should ignore DebugValues.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101392 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Make sure the initialization of a GC root is after its definition.Nicolas Geoffray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101388 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15prune includesGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix a bunch of namespace polution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101371 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15back out r101364, as it trips the linux nightlybot on some clang C++ testsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15rotate CallInst operands, i.e. move callee to the backGabor Greif
of the operand array the motivation for this patch are laid out in my mail to llvm-commits: more efficient access to operands and callee, faster callgraph-construction, smaller compiler binary git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15enhance the load/store narrowing optimization to handle aChris Lattner
tokenfactor in between the load/store. This allows us to optimize test7 into: _test7: ## @test7 ## BB#0: ## %entry movl (%rdx), %eax ## kill: SIL<def> ESI<kill> movb %sil, 5(%rdi) ret instead of: _test7: ## @test7 ## BB#0: ## %entry movl 4(%esp), %ecx movl $-65281, %eax ## imm = 0xFFFFFFFFFFFF00FF andl 4(%ecx), %eax movzbl 8(%esp), %edx shll $8, %edx addl %eax, %edx movl 12(%esp), %eax movl (%eax), %eax movl %edx, 4(%ecx) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15teach codegen to turn trunc(zextload) into load when possible.Chris Lattner
This doesn't occur much at all, it only seems to formed in the case when the trunc optimization kicks in due to phase ordering. In that case it is saves a few bytes on x86-32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101350 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15add a simple dag combine to replace trivial shl+lshr withChris Lattner
and. This happens with the store->load narrowing stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Implement rdar://7860110 (also in target/readme.txt) narrowingChris Lattner
a load/or/and/store sequence into a narrower store when it is safe. Daniel tells me that clang will start producing this sort of thing with bitfields, and this does trigger a few dozen times on 176.gcc produced by llvm-gcc even now. This compiles code like CodeGen/X86/2009-05-28-DAGCombineCrash.ll into: movl %eax, 36(%rdi) instead of: movl $4294967295, %eax ## imm = 0xFFFFFFFF andq 32(%rdi), %rax shlq $32, %rcx addq %rax, %rcx movq %rcx, 32(%rdi) and each of the testcases into a single store. Each of them used to compile into craziness like this: _test4: movl $65535, %eax ## imm = 0xFFFF andl (%rdi), %eax shll $16, %esi addl %eax, %esi movl %esi, (%rdi) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101343 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add more const qualifiers for LLVM IR pointers in CodeGen.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15More 80 violations.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101330 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-1580 col violations.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101325 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101317 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14There is no need to track compile unit offsets if there is only one compile ↵Devang Patel
unit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101315 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Remove dead code.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Delete unneeeded arguments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Delete unused arguments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101275 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Factor out EH landing pad code into a separate function, and constifyDan Gohman
a bunch of stuff to support it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101273 91177308-0d34-0410-b5e6-96231b3b80d8
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