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path: root/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
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2009-05-20Fix for PR4235: to build a floating-point value from integer parts, Eli Friedman
build an integer and cast that to a float. This fixes a crash caused by trying to split an f32 into two f16's. This changes the behavior in test/CodeGen/XCore/fneg.ll because that testcase now triggers a DAGCombine which converts the fneg into an integer operation. If someone is interested, it's probably possible to tweak the test to generate an actual fneg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72162 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-18Revert last commit. It was wrong.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72026 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-18Don't call RegionInlinedFnEnd if our optimization level isn't -O0.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Add an assert to turn a segfault on an unsupported inlineDan Gohman
asm construct into an assertion failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71757 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Removing the HasBuiltinSetjmp flag and associated bits. Flagging the presenceJim Grosbach
of exception handling builtin sjlj targets in functions turns out not to be necessary. Marking the intrinsic implementation in the .td file as defining all registers is sufficient to get the context saved properly by the containing function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-12Add support for GCC compatible builtin setjmp and longjmp intrinsics. This isJim Grosbach
a supporting preliminary patch for GCC-compatible SjLJ exception handling. Note that these intrinsics are not designed to be invoked directly by the user, but rather used by the front-end as target hooks for exception handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-10--- Reverse-merging r71370 into '.':Bill Wendling
U lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp Revert r71370. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-09A debug function start was not being recorded when the optimization level wasn'tBill Wendling
None. However, we were always recording the region end. There's no longer a good reason for this code to be separated out between the different opt levels, as it was doing pretty much the same thing anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-09Rename PaddedSize to AllocSize, in the hope that thisDuncan Sands
will make it more obvious what it represents, and stop it being confused with the StoreSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Mirror how Fast ISel determines if a region.end intrinsic is the end of anBill Wendling
inlined function or the end of a function. Before, this was never executing the "inlined" version of the Record method. This will become important once the inlined Dwarf writer patch lands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71268 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Do not emit bit tests if target does not support natively left shiftAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07Revert 71165. It did more than just revert 71158 and it introducedDan Gohman
several regressions. The problem due to 71158 is now fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07Temporarily revert r71158. It was causing a failure during a full bootstrap:Bill Wendling
checking for bcopy... no checking for getc_unlocked... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decUtility.c:360: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. make[4]: *** [decUtility.o] Error 1 make[4]: *** Waiting for unfinished jobs.... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decNumber.c:5591: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. make[4]: *** [decNumber.o] Error 1 make[3]: *** [all-stage2-libdecnumber] Error 2 make[3]: *** Waiting for unfinished jobs.... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07Make DwarfWriter::RecordInlinedFnStart more like the other DwarfWriter's ↵Argyrios Kyrtzidis
methods: -Have it return a label ID -Remove the unused Instruction parameter No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71132 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Make DBG_STOPPOINT nodes, and therefore DBG_LABEL labels, get a DebugLoc, so ↵Chris Lattner
that it shows up in -print-machineinstrs. This doesn't appear to affect anything, but it was weird for some DBG_LABELs to have DebugLocs but not all of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70921 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Restore minor deletion.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03-Move the DwarfWriter::ValidDebugInfo check to a static ↵Argyrios Kyrtzidis
DIDescriptor::ValidDebugInfo -Create DebugLocs without the need to have a DwarfWriter around git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30Make DebugLoc independent of DwarfWriter.Argyrios Kyrtzidis
-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable* -Remove DwarfWriter::getOrCreateSourceID -Make necessary changes for the above (fix callsites, etc.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30fix a regression handling indirect results: these need to be consideredChris Lattner
memory operands otherwise the writebacks get lost when the inline asm doesn't otherwise have side effects. This fixes rdar://6839427, though clang really shouldn't generate these anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70455 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Instead of passing in an unsigned value for the optimization level, use an enum,Bill Wendling
which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Implement review feedback for vector shuffle work.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Second attempt:Bill Wendling
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28r70270 isn't ready yet. Back this out. Sorry for the noise.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want toBill Wendling
use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'm not 100% sure if it's necessary to change it there... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-272nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.Nate Begeman
PR2957 ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Revert 69952. Causes testsuite failures on linux x86-64.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24PR2957Nate Begeman
ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Factor out a bit of code that appears in several places into aDan Gohman
utility function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69937 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Handle Void types in ComputeValueVTs. This doesn't currently occur,Dan Gohman
but this change makes the code more general and easier to adapt for new purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18Inline asm's were still introducing bogus dependencies;Dale Johannesen
my earlier patch to this code only fixed half of it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Do not treat beginning of inlined scope as beginning of normal function ↵Devang Patel
scope if the location info is missing. Insetad of doing ... if (inlined_subroutine && known_location) DW_TAG_inline_subroutine else DW_TAG_subprogram do if (inlined_subroutine) { if (known_location) DW_TAG_inline_subroutine } else { DW_TAG_subprogram } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Record line number at the beginning of a func.start.Devang Patel
This line was accidently lost yesterday. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69286 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16In -fast mode do what FastISel does.Devang Patel
This code could use some refactoring help! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14Do not force asm's to be chained if they don't touchDale Johannesen
memory and aren't volatile. This was interfering with good scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69008 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Make these errors more noticable in build logs.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68998 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Right now, Debugging information to encode scopes (DW_TAG_lexical_block) ↵Devang Patel
relies on DBG_LABEL. Unfortunately this intefers with the quality of optimized code. This patch updates dwarf writer to encode scoping information in DWARF only in FastISel mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68973 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13Reapply 68847.Devang Patel
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68964 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11Revert r68847. It breaks the build on non-Darwin targets, with this messageDan Gohman
from the assembler: Error: unknown pseudo-op: `.debug_inlined' git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68863 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11Keep track of inlined functions and their locations. This information is ↵Devang Patel
collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.) Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Remove the obsolete SelectionDAG::getNodeValueTypes and simplifyDan Gohman
code that uses it by using SelectionDAG::getVTList instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68744 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Generalize ExtendUsesToFormExtLoad to be usable for ANY_EXTEND,Dan Gohman
in addition to ZERO_EXTEND and SIGN_EXTEND. Fix a bug in the way it checked for live-out values, and simplify the way it find users by using SDNode::use_iterator's (relatively) new features. Also, make it slightly more permissive on targets with free truncates. In SelectionDAGBuild, avoid creating ANY_EXTEND nodes that are larger than necessary. If the target's SwitchAmountTy has enough bits, use it. This exposes the truncate to optimization early, enabling more optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Don't copy the operand of a SwitchInst into virtual registers asDan Gohman
eagerly. This helps avoid CopyToReg nodes in some cases where they aren't needed, and also helps subsequent optimizer heuristics in cases where the extra nodes would cause the node to appear to have multiple results. This doesn't have a significant impact currently; it'll help an upcoming change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07Revert prev. patch for now.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68569 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07Right now DBG_LABEL are required for llvm.dbg.region_start and ↵Devang Patel
llvm.dbg.region_end in non-fast mode also. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31Fix live-out reg logic to not insert over-aggressive AssertZExtDan Gohman
instructions. This fixes lua. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-25Revert 67132. This is breaking some objective-c apps.Evan Cheng
Also fixes SDISel so it *does not* force promote return value if the function is not marked signext / zeroext. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-25When optimizing with debug info, don't keep theDale Johannesen
stoppoint nodes around until Legalize; doing this imposed an ordering on a sequence of loads that came from different lines, interfering with scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24more tidying: name the components of PhysReg in the case whenChris Lattner
the target constraint specifies a specific physreg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67618 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24Tidy a bit more.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67617 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24simplify this code a bit now that "allocation to a vreg class" can neverChris Lattner
fail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67616 91177308-0d34-0410-b5e6-96231b3b80d8
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