Chris Lattner
2c71b8f64f
eliminate unneeded parens.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 05:38:23 +00:00
Nick Lewycky
93f70fc291
Link against libffi if available, fall back to "no external calls from
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interpreter mode" when it's not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68937 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 04:26:06 +00:00
Chris Lattner
b7253150ab
fix PR3965:SIGINT handler not restored after calling ParseAST(),
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patch by Alexei Svitkine!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68929 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 23:33:13 +00:00
Rafael Espindola
b215776fa1
In X86DAGToDAGISel::MatchWrapper, if base or index are set, avoid matching
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only if symbolic addresses are RIP relatives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68924 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 23:00:38 +00:00
Rafael Espindola
49a168daae
refactor some code into X86DAGToDAGISel::MatchWrapper
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 21:55:03 +00:00
Chris Lattner
5db4cdfc56
"There was a typo in my previous patch which leads to miscompilation of
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strncat :(
strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"
Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 18:22:33 +00:00
Chris Lattner
8d57b778b5
fix a cross-block fastisel crash handling overflow intrinsics.
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See comment for details. This fixes rdar://6772169
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68890 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:51:14 +00:00
Chris Lattner
36e3946ac2
make UpdateValueMap handle the possiblity that we could be
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copying into the right register, avoiding a copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:46:30 +00:00
Chris Lattner
c5040ab606
optimize FastISel::UpdateValueMap to avoid duplicate map lookups,
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and make it return the assigned register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:45:01 +00:00
Chris Lattner
a9a42259ed
simplify code by using IntrinsicInst.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68887 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:36:01 +00:00
Chris Lattner
0461c0a8f5
Add new TargetInstrDesc::hasImplicitUseOfPhysReg and
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hasImplicitDefOfPhysReg methods. Use them to remove a
look in X86 fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:26:51 +00:00
Chris Lattner
f5b6bc7f0e
add some optimizations for strncpy/strncat and factor some
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code. Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 05:06:39 +00:00
Dan Gohman
c6fa3ff0bd
Revert r68847. It breaks the build on non-Darwin targets, with this message
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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
2009-04-11 15:57:04 +00:00
Devang Patel
2057532679
Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)
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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
2009-04-11 00:16:47 +00:00
Devang Patel
03f0a2fba0
DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 18:58:59 +00:00
Bob Wilson
ec15bbfd2f
Clean up a bunch of whitespace issues and fix a comment typo.
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No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 18:48:47 +00:00
Chris Lattner
296185c264
fix two problems with machine sinking:
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1. Sinking would crash when the first instruction of a block was
sunk due to iterator problems.
2. Instructions could be sunk to their current block, causing an
infinite loop.
This fixes PR3968
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68787 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 16:38:36 +00:00
Dan Gohman
0355862f71
Now that register classes have names, include the name in debug output.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68786 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 15:59:38 +00:00
Sanjiv Gupta
a3613be963
Added code to handle spilling and reloading of FSRs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68783 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 15:10:14 +00:00
Rafael Espindola
dbcfb3080a
Don't fold a load if the other operand is a TLS address.
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With this we generate
movl %gs:0, %eax
leal i@NTPOFF(%eax), %eax
instead of
movl $i@NTPOFF, %eax
addl %gs:0, %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68778 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 10:09:34 +00:00
Chris Lattner
3584a47588
Add a new Type::getPointerTo method, which is shorthand for
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llvm::PointerType::get(). Patch by Anders Johnsen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68772 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 06:42:02 +00:00
Chris Lattner
c2406f2341
a few fixes to "addrspace(256) is reference offset of GS segment register".
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It turns out that there are still several problems with this, will file a bugzilla.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 00:16:23 +00:00
Bill Wendling
7d16e85bfc
Pass in the std::string parameter instead of returning it by value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 00:12:49 +00:00
Bill Wendling
a6f02fbb75
Constify getter methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68745 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 00:00:25 +00:00
Dan Gohman
fc1665793e
Remove the obsolete SelectionDAG::getNodeValueTypes and simplify
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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
2009-04-09 23:54:40 +00:00
Bill Wendling
f34be827ac
StringMap<DIE*>::iterator::first() returns a pointer to the first character of
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the key. This will cause it to create a new std::string, which isn't
wanted. Instead, pass back the "const char*". Modify the EmitString() method to
take a "const char*".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 23:51:31 +00:00
Devang Patel
923838533a
Silence unused variable warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 23:45:17 +00:00
Chris Lattner
c30aa7b3de
ignore register zero in isRegTiedToUseOperand, following the example of
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isRegTiedToDefOperand. Thanks to Bob for pointing this out!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68734 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 23:33:34 +00:00
Owen Anderson
3ca15c989c
Give register alias checking the hash table treatment too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68730 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 22:19:30 +00:00
Bill Wendling
972bbac789
Use a StringMap instead of std::map for storing std::string->DIE* maps. This
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gives a micro speedup in the Dwarf writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 21:49:15 +00:00
Devang Patel
b396992f68
llvm.dbg.func_start also defines beginning of function scope.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 21:42:11 +00:00
Bob Wilson
d9df501704
Fix pr3954. The register scavenger asserts for inline assembly with
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register destinations that are tied to source operands. The
TargetInstrDescr::findTiedToSrcOperand method silently fails for inline
assembly. The existing MachineInstr::isRegReDefinedByTwoAddr was very
close to doing what is needed, so this revision makes a few changes to
that method and also renames it to isRegTiedToUseOperand (for consistency
with the very similar isRegTiedToDefOperand and because it handles both
two-address instructions and inline assembly with tied registers).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 17:16:43 +00:00
Sanjiv Gupta
37831d0a12
The way we are trying to figure out banksel immediate operand may yield different results for different type of insns. This will eventually need to be changed but currently let us prevent the crash in cases of incorrect detection of banksel operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68713 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 17:06:24 +00:00
Chris Lattner
0c8382ce9a
reg0 references are not real registers. This fixes a crash on the
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attached testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 16:50:43 +00:00
Sanjiv Gupta
e206b1d142
Arguments to indirect calls were being passed incorrectly. They are not fixed to start after return value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 10:29:32 +00:00
Chris Lattner
a1cd83a258
Fix code size computation on x86-64, patch by Zoltan Varga!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 06:10:51 +00:00
Sanjiv Gupta
6e2a46a0b4
r68576 unconverd a bug in PIC16 port (Thanks to Dan Gohman) where we were custom lowering an ADD to ADDC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 04:03:43 +00:00
Dan Gohman
57fc82d409
Generalize ExtendUsesToFormExtLoad to be usable for ANY_EXTEND,
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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
2009-04-09 03:51:29 +00:00
Owen Anderson
7d770be047
Convert TargetRegisterInfo's super-register checking to use a pre-computed hash table just like subregister checking does.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68669 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 03:50:16 +00:00
Dan Gohman
8e5c0da848
Don't copy the operand of a SwitchInst into virtual registers as
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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
2009-04-09 02:33:36 +00:00
Dan Gohman
349ba4951f
Fix grammaros in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68666 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 02:06:09 +00:00
Daniel Dunbar
6ddf2c1930
Add sys::Path::makeAbsolute().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09 00:33:08 +00:00
Devang Patel
75b2738d73
If subprogram type is not tagged as DW_TAG_subroutine_type then use it directly as a return value type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68647 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 22:18:45 +00:00
Rafael Espindola
094fad37b9
Re-apply 68552.
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Tested by bootstrapping llvm-gcc and using that to build llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68645 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 21:14:34 +00:00
Bob Wilson
2c7dab1864
Fix PR3795: Apply Dan's suggested fix for
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ARMTargetLowering::isLegalAddressingMode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68619 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 17:55:28 +00:00
Duncan Sands
3d0355b825
Soft float support for FREM.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68614 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 16:20:57 +00:00
Duncan Sands
7beb1ec298
Soft float support for undef. Reported by Xerxes Rånby.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68607 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 13:33:37 +00:00
Rafael Espindola
8ef2b89131
Avoid a hard coded constant.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68603 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 08:09:33 +00:00
Sanjiv Gupta
c1fa70c35a
Emit .line debug directives for stoppoints. The debug location is retrieved by the MachineInstr itself, rather than by custom handling the DBG_STOPPOINT nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 06:24:04 +00:00
Chris Lattner
ddfa57bd7b
Instcombine should not promote whole computation trees to "strange"
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integer types, unless they are already strange. This prevents it from
turning the code produced by SROA into crazy libcalls and stuff that
the code generator can't handle. In the attached example, the result
was an i96 multiply that caused the x86 backend to assert.
Note that if TargetData had an idea of what the legal types are for
a target that this could be used to stop instcombine from introducing
i64 muls, as Scott wanted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 05:41:03 +00:00