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2008-12-05Forgot a file.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Make LoopStrengthReduce smarter about hoisting things out ofDale Johannesen
loops when they can be subsumed into addressing modes. Change X86 addressing mode check to realize that some PIC references need an extra register. (I believe this is correct for Linux, if not, I'm sure someone will tell me.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60608 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Reason #3 from 60595 doesn't hold true. If we can fold a PIC load from ↵Evan Cheng
constpool into a use, the rewrite happens at time of spill (not in VirtRegMap). Later on, if the GlobalBaseReg is spilled, the spiller can see the use uses GlobalBaseReg and do the right thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Effectively undo 60461 in PIC mode which simply transform V_SET0 / ↵Evan Cheng
V_SETALLONES into a load from constpool in order to fold into restores. This is not safe to do when PIC base is being used for a number of reasons: 1. GlobalBaseReg may have been spilled. 2. It may not be live at the use. 3. Spiller doesn't know this is happening so it won't prevent GlobalBaseReg from being spilled later (That by itself is a nasty hack. It's needed because we don't insert the reload until later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Re-did 60519. It turns out Darwin's handling of hidden visibility symbols ↵Evan Cheng
are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04CellSPU: Fix bug 3055Scott Michel
- Add v4f32, v2f64 to LowerVECTOR_SHUFFLE - Look for vector rotate in shuffle elements, generate a vector rotate instead of a full-blown shuffle when opportunity presents itself. - Generate larger test harness and fix a few interesting but obscure bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60552 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04Missing closing brace and reverse conditional condition on NDEBUGScott Michel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60541 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04This code is apparently quite confused. In the meantime,Chris Lattner
get it building when NDEBUG is set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60532 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04Temporarily revert r60519. It was causing a bootstrap failure:Bill Wendling
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c -fno-common -DPIC -o .libs/barrier.o checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb" /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression make[4]: *** [barrier.lo] Error 1 make[4]: *** Waiting for unfinished jobs.... /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1 yes checking for sys/param.h... make[3]: *** [all-recursive] Error 1 make[2]: *** [all] Error 2 make[1]: *** [all-target-libgomp] Error 2 make[1]: *** Waiting for unfinished jobs.... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60527 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04CellSPU:Scott Michel
- First patch from Nehal Desai, a new contributor at Aerospace. Nehal's patch fixes sign/zero/any-extending loads for integers and floating point. Example code, compiled w/o debugging or optimization where he first noticed the bug: int main(void) { float a = 99.0; printf("%d\n", a); return 0; } Verified that this code actually works on a Cell SPU. Changes by Scott Michel: - Fix bug in the value type list constructed by SPUISD::LDRESULT to include both the load result's result and chain, not just the chain alone. - Simplify LowerLOAD and remove extraneous and unnecessary chains. - Remove unused SPUISD pseudo instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04Visibility hidden GVs do not require extra load of symbol address from the ↵Evan Cheng
GOT or non-lazy-ptr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Use mmx (punpckldq VR64, (mmx_v_set0)) to clear high 32-bits of a VR64 register.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03A step towards geting linux ppc to work (see PR 3099)Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60497 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Split foldMemoryOperand into public non-virtual and protected virtualDan Gohman
parts, and add target-independent code to add/preserve MachineMemOperands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Rename isSimpleLoad to canFoldAsLoad, to better reflect its meaning.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60487 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Extend X86's addFrameReference to add a MachineMemOperand forDan Gohman
the frame reference. This will help post-RA scheduling determine that spills to distinct stack slots are independent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Update a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Fix bug 3140.Rafael Espindola
Print a single parameter .file directive if we have an ELF target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Add support for ISD::TRAP to the XCore backendRichard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60479 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Refactor code. No functionality change.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03CC should only be a ConstantSDNode at this point. Just use 'cast' instead of ↵Bill Wendling
'dyn_cast'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Mark x86's V_SET0 and V_SETALLONES with isSimpleLoad, and teach X86'sDan Gohman
foldMemoryOperand how to "fold" them, by converting them into constant-pool loads. When they aren't folded, they use xorps/cmpeqd, but for example when register pressure is high, they may now be folded as memory operands, which reduces register pressure. Also, mark V_SET0 isAsCheapAsAMove so that two-address-elimination will remat it instead of copying zeros around (V_SETALLONES was already marked). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Add a sanity-check to tablegen to catch the case where isSimpleLoadDan Gohman
is set but mayLoad is not set. Fix all the problems this turned up. Change code to not use isSimpleLoad instead of mayLoad unless it really wants isSimpleLoad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Fix a missing #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Fix this comment to reflect that it applies to types otherDan Gohman
than just i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60455 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-03Fix byval arguments in the fastcc calling convention. The fastcc conventionDan Gohman
delegates to the regular x86-32 convention which handles byval, but only after it handles a few cases, and it's necessary to handle byval before handling those cases. This fixes PR3122 (and rdar://6400815), llvm-gcc miscompiling LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02CellSPU:Scott Michel
- Incorporate Tilmann Scheller's ISD::TRUNCATE custom lowering patch - Update SPU calling convention info, even if it's not used yet (but can be at some point or another) - Ensure that any-extended f32 loads are custom lowered, especially when they're promoted for use in printf. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60404 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02- Remove the buggy -X/C -> X/-C transform. This isn't valid when X isn't aBill Wendling
constant. If X is a constant, then this is folded elsewhere. - Added a note to Target/README.txt to indicate that we'd like to implement this when we're able. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60399 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02Second stab at target-dependent lowering of everyone's favorite nodes: [SU]ADDOBill Wendling
- LowerXADDO lowers [SU]ADDO into an ADD with an implicit EFLAGS define. The EFLAGS are fed into a SETCC node which has the conditional COND_O or COND_C, depending on the type of ADDO requested. - LowerBRCOND now recognizes if it's coming from a SETCC node with COND_O or COND_C set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60388 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02Reapply r60382. This time, don't mark "ADC" nodes with "implicit EFLAGS".Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Temporarily revert r60382. It caused CodeGen/X86/i2k.ll and others to fail.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01- Have "ADD" instructions return an implicit EFLAGS.Bill Wendling
- Add support for seto, setno, setc, and setnc instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01CellSPU:Scott Michel
- Fix v2[if]64 vector insertion code before IBM files a bug report. - Ensure that zero (0) offsets relative to $sp don't trip an assert (add $sp, 0 gets legalized to $sp alone, tripping an assert) - Shuffle masks passed to SPUISD::SHUFB are now v16i8 or v4i32 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01There are no longer any places that require aDuncan Sands
MERGE_VALUES node with only one operand, so get rid of special code that only existed to handle that possibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Change the interface to the type legalization methodDuncan Sands
ReplaceNodeResults: rather than returning a node which must have the same number of results as the original node (which means mucking around with MERGE_VALUES, and which is also easy to get wrong since SelectionDAG folding may mean you don't get the node you expect), return the results in a vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Implement ((A|B)&1)|(B&-2) -> (A&1) | B transformation. This also takes care ofBill Wendling
permutations of this pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30Add instruction combining for ((A&~B)|(~A&B)) -> A^B and all permutations.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30Implement (A&((~A)|B)) -> A&B transformation in the instruction combiner. ThisBill Wendling
takes care of all permutations of this pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60290 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30A couple small cleanups, plus a new potential optimization.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60286 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30Moving potential optimizations out of PR2330 into lib/Target/README.txt. Eli Friedman
Hopefully this isn't too much stuff to dump into this file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60285 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28Add include files needed when building withDuncan Sands
gcc 4.4 (due to use of sprintf). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60209 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28Fix build with gcc-4.4: it doesn't like PICStyleDuncan Sands
being both a namespace and a variable name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60208 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27Also update the README.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27Add a synthetic missed optimization.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60186 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27Comment out code that isn't entirely correct.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27Eliminate a compile time warning.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60145 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27On x86 favors folding short immediate into some arithmetic operations (e.g. ↵Evan Cheng
add, and, xor, etc.) because materializing an immediate in a register is expensive in turns of code size. e.g. movl 4(%esp), %eax addl $4, %eax is 2 bytes shorter than movl $4, %eax addl 4(%esp), %eax git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26Generate something sensible for an [SU]ADDO op when the overflow/carry flag isBill Wendling
the conditional for the BRCOND statement. For instance, it will generate: addl %eax, %ecx jo LOF instead of addl %eax, %ecx ; About 10 instructions to compare the signs of LHS, RHS, and sum. jl LOF git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26Cosmetic.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60110 91177308-0d34-0410-b5e6-96231b3b80d8
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