aboutsummaryrefslogtreecommitdiff
path: root/lib/Target
AgeCommit message (Collapse)Author
2010-08-26Fix comment typos.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112202 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Restrict the register to tGPR to make sure the str instruction will beJim Grosbach
encodable as a 16-bit wide instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Revert r112176; it broke test/CodeGen/Thumb2/thumb2-cmn.ll.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Reapply r112091 and r111922, support for metadata linking, with aDan Gohman
fix: add a flag to MapValue and friends which indicates whether any module-level mappings are being made. In the common case of inlining, no module-level mappings are needed, so MapValue doesn't need to examine non-function-local metadata, which can be very expensive in the case of a large module with really deep metadata (e.g. a large C++ program compiled with -g). This flag is a little awkward; perhaps eventually it can be moved into the ClonedCodeInfo class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112190 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26There seems to be a (potential) hardware bug with the CMN instruction andBill Wendling
comparison with 0. These two pieces of code should give identical results: rsbs r1, r1, 0 cmp r0, r1 mov r0, #0 it ls mov r0, #1 and: cmn r0, r1 mov r0, #0 it ls mov r0, #1 However, the CMN gives the *opposite* result when r1 is 0. This is because the carry flag is set in the CMP case but not in the CMN case. In short, the CMP instruction doesn't perform a truncate of the (logical) NOT of 0 plus the value of r0 and the carry bit (because the "carry bit" parameter to AddWithCarry is defined as 1 in this case, the carry flag will always be set when r0 >= 0). The CMN instruction doesn't perform a NOT of 0 so there is never a "carry" when this AddWithCarry is performed (because the "carry bit" parameter to AddWithCarry is defined as 0). The AddWithCarry in the CMP case seems to be relying upon the identity: ~x + 1 = -x However when x is 0 and unsigned, this doesn't hold: x = 0 ~x = 0xFFFF FFFF ~x + 1 = 0x1 0000 0000 (-x = 0) != (0x1 0000 0000 = ~x + 1) Therefore, we should disable *all* versions of CMN, especially when comparing against zero, until we can limit when the CMN instruction is used (when we know that the RHS is not 0) or when we have a hardware fix for this. (See the ARM docs for the "AddWithCarry" pseudo-code.) This is related to <rdar://problem/7569620>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112171 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Use pseudo instructions for VST1d64Q.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26fix sse1 only codegen in x86-64 mode, which is something weChris Lattner
apparently try to support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26remove dead protoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Fix PR7748 without using microsoft extensionsBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112128 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Enable pre-RA virtual frame base register allocation. rdar://8277890Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112127 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Revert svn 107892 (with changes to work with trunk). It caused a crash ifBob Wilson
a VLD result was not used (Radar 8355607). It should also fix pr7988, but I haven't verified that yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25we should pattern match the SSE complex arithmetic ops.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112109 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Start converting NEON load/stores to use pseudo instructions, beginning hereBob Wilson
with the VST4 instructions. Until after register allocation, we want to represent sets of adjacent registers by a single super-register. These VST4 pseudo instructions have a single QQ or QQQQ source register operand. They get expanded to the real VST4 instructions with 4 separate D register operands. Once this conversion is complete, we'll be able to remove the NEONPreAllocPass and avoid some fragile and hacky code elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Revert this for now, PUNPCKLDQ dont operate on v4f32Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25X86: Fix misencode of RI64mi8. This fixes OpenSSL / x86_64-apple-darwin10 / ↵Daniel Dunbar
clang -O3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Don't override the var from the enclosing scope.Jim Grosbach
When doing copy/paste/modify, it's apparently rather important to remember the 'modify' bit... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112075 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25zap dead codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Remove dead recursive function. Yay for clang -Wunused-function.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25ARM/Thumb2: Fix a misselect in getARMCmp, when attempting to adjust a signedDaniel Dunbar
comparison that would overflow. - The other under/overflow cases can't actually happen because the immediates which would trigger them are legal (so we don't enter this code), but adjusted the style to make it clear the transform is always valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112053 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Do type checks before we bother to do everything else.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix nasty mingw32 bug, which e.g. prevented llvm-gcc bootstrap there.Anton Korobeynikov
Mark _alloca call as clobberring EFLAGS, otherwise some DCE might remove other flags-clobberring stuff (e.g. cmp instructions) occuring after _alloca call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Reorganize load mechanisms. Handle types in a little less fixed way.Eric Christopher
Fix some todos. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25PUNPCKLDQ should also be used for v4f32Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25teach lowering to get target specific nodes for pshufd, emulating the same ↵Bruno Cardoso Lopes
isel behavior for now, so we can pass all vector shuffle tests git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112017 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix predicate and add a comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Rework braindead conditionals I put in yesterday.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix thumb2 mode loads to have the correct operand ordering. Add a todoEric Christopher
to fix this in the port. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Add ARM heuristic for when to allocate a virtual base register for stackJim Grosbach
access. rdar://8277890&7352504 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24MC/X86: Tweak imul recognition, previous hack only applies for the imul formDaniel Dunbar
taking immediates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24MC/X86: Add custom hack for recognizing "imul $12, %eax" and friends.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111947 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24MC/X86: Warn on scale factors > 1 without index register, instead of erroring,Daniel Dunbar
for 'as' compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111945 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Move enabling the local stack allocation pass into the target where it belongs.Jim Grosbach
For now it's still a command line option, but the interface to the generic code doesn't need to know that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24add ARM cmd line option to force always using virtual base regs when possible.Jim Grosbach
Intended to help ease reproducing problems by increasing base register usage after heuristics for only using the when needed are in place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix X86's isLegalAddressingMode to recognize that static addressesDan Gohman
need not be RIP-relative in small mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111917 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix SPU BE to use all the available return registers.Kalle Raiskila
llc used to assert on the added testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Remove some dead code from SPU BE that remainedKalle Raiskila
from 64bit vector support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111910 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Use pshufhw and pshuflw in more cases and fix getTargetShuffleNode number of ↵Bruno Cardoso Lopes
arguments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Add comments for what the condition code symbols mean.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Update comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix the opcode and the operands for the load instruction.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111885 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Add register class hack that needs to go away, but makes it more obviousEric Christopher
that it needs to go away. Use loadRegFromStackSlot where possible. Also, remember to update the value map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Add some more debugging code, make it more obvious that RegOffset isEric Christopher
getting an address for an object and select some default values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Don't need the extra register here.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Add some more "get address into register" code and a more TODOs/FIXMEs.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Add an ARMFunctionInfo member and use it.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Start getting ARM loads/address computation going.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111850 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Start using target speficic nodes for shuffles: pshufhw and pshuflwBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23tyopsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111835 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Add a new llvm.x86.int intrinsic, allowing access to the Chris Lattner
x86 int and int3 instructions. Patch by Peter Housel! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111831 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-06-28 10:57:53 +0000