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Commit Graph

172 Commits

Author SHA1 Message Date
Dan Gohman
313018c1d3 Handle Void types in ComputeValueVTs. This doesn't currently occur,
but this change makes the code more general and easier to adapt for
new purposes.

llvm-svn: 69935
2009-04-23 22:50:03 +00:00
Dale Johannesen
f957aa4768 Inline asm's were still introducing bogus dependencies;
my earlier patch to this code only fixed half of it.

llvm-svn: 69408
2009-04-18 00:09:40 +00:00
Devang Patel
d324ddbd7b Do not treat beginning of inlined scope as beginning of normal function 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
}

llvm-svn: 69300
2009-04-16 17:55:30 +00:00
Devang Patel
6052d698f5 Record line number at the beginning of a func.start.
This line was accidently lost yesterday.

llvm-svn: 69286
2009-04-16 15:07:09 +00:00
Devang Patel
87488c2a88 In -fast mode do what FastISel does.
This code could use some refactoring help!

llvm-svn: 69254
2009-04-16 02:33:41 +00:00
Dale Johannesen
b423c8f205 Do not force asm's to be chained if they don't touch
memory and aren't volatile.  This was interfering with
good scheduling.

llvm-svn: 69008
2009-04-14 00:56:56 +00:00
Daniel Dunbar
e2a54c13b3 Make these errors more noticable in build logs.
llvm-svn: 68998
2009-04-13 22:26:09 +00:00
Devang Patel
92d79ef835 Right now, Debugging information to encode scopes (DW_TAG_lexical_block) 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.

llvm-svn: 68973
2009-04-13 18:13:16 +00:00
Devang Patel
ad7f61c279 Reapply 68847.
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.

llvm-svn: 68964
2009-04-13 17:02:03 +00:00
Dan Gohman
ac11c8d30f Revert r68847. It breaks the build on non-Darwin targets, with this message
from the assembler:

Error: unknown pseudo-op: `.debug_inlined'
llvm-svn: 68863
2009-04-11 15:57:04 +00:00
Devang Patel
6f907173e0 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.)
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.

llvm-svn: 68847
2009-04-11 00:16:47 +00:00
Dan Gohman
8121b3f88d Remove the obsolete SelectionDAG::getNodeValueTypes and simplify
code that uses it by using SelectionDAG::getVTList instead.

llvm-svn: 68744
2009-04-09 23:54:40 +00:00
Dan Gohman
68de98eef3 Generalize ExtendUsesToFormExtLoad to be usable for ANY_EXTEND,
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.

llvm-svn: 68670
2009-04-09 03:51:29 +00:00
Dan Gohman
6479d0cbb7 Don't copy the operand of a SwitchInst into virtual registers as
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.

llvm-svn: 68667
2009-04-09 02:33:36 +00:00
Devang Patel
74fc1ab23d Revert prev. patch for now.
llvm-svn: 68569
2009-04-07 23:00:04 +00:00
Devang Patel
6fce3ad779 Right now DBG_LABEL are required for llvm.dbg.region_start and llvm.dbg.region_end in non-fast mode also.
llvm-svn: 68559
2009-04-07 22:27:56 +00:00
Dan Gohman
cba99ee717 Fix live-out reg logic to not insert over-aggressive AssertZExt
instructions. This fixes lua.

llvm-svn: 68083
2009-03-31 01:38:29 +00:00
Evan Cheng
7e4217176a Revert 67132. This is breaking some objective-c apps.
Also fixes SDISel so it *does not* force promote return value if the function is not marked signext / zeroext.

llvm-svn: 67701
2009-03-25 20:20:11 +00:00
Dale Johannesen
9fb1dcd077 When optimizing with debug info, don't keep the
stoppoint nodes around until Legalize; doing this
imposed an ordering on a sequence of loads that
came from different lines, interfering with scheduling.

llvm-svn: 67692
2009-03-25 17:36:08 +00:00
Chris Lattner
135eeefe66 more tidying: name the components of PhysReg in the case when
the target constraint specifies a specific physreg.

llvm-svn: 67618
2009-03-24 15:27:37 +00:00
Chris Lattner
8793e812ef Tidy a bit more.
llvm-svn: 67617
2009-03-24 15:25:07 +00:00
Chris Lattner
a60dd19c3e simplify this code a bit now that "allocation to a vreg class" can never
fail.

llvm-svn: 67616
2009-03-24 15:22:11 +00:00
Evan Cheng
2ec94dd447 Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies.
llvm-svn: 67512
2009-03-23 08:01:15 +00:00
Evan Cheng
0c629db2aa For inline asm output operand that matches an input. Encode the input operand index in the high bits.
llvm-svn: 67387
2009-03-20 18:03:34 +00:00
Rafael Espindola
6a6d9e48dd Don't force promotion of return arguments on the callee.
Some architectures (like x86) don't require it.
This fixes bug 3779.

llvm-svn: 67132
2009-03-17 23:43:59 +00:00
Chris Lattner
e3c442050d Fix codegen to compute the size of an allocation by multiplying the
size by the array amount as an i32 value instead of promoting from
i32 to i64 then doing the multiply.  Not doing this broke wrap-around
assumptions that the optimizers (validly) made.  The ultimate real
fix for this is to introduce i64 version of alloca and remove mallocinst.

This fixes PR3829

llvm-svn: 67093
2009-03-17 19:36:00 +00:00
Bill Wendling
5499163a0a Oops...I committed too much.
llvm-svn: 66867
2009-03-13 04:39:26 +00:00
Bill Wendling
02a239b837 Temporarily XFAIL this test.
llvm-svn: 66866
2009-03-13 04:37:11 +00:00
Bill Wendling
13fcab1ef3 Pass in a std::string when getting the names of debugging things. This cuts down
on the number of times a std::string is created and copied.

llvm-svn: 66396
2009-03-09 05:04:40 +00:00
Evan Cheng
ec34226c2b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
llvm-svn: 65482
2009-02-25 22:49:59 +00:00
Dale Johannesen
9a6ca304f1 Fix big-endian codegen bug. We're splitting up
overly long ints, e.g. i96, into pieces at PHIs
and the nodes that feed into them; however big-endian
reverses the order of the pieces (for some reason), and
wasn't doing it the same way on both sides, so
the pieces didn't match and runtime failures ensued.
Fixes 188.ammp and sqlite3 on ppc32.

llvm-svn: 65481
2009-02-25 22:39:13 +00:00
Evan Cheng
befebff8fc Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior.
This is a very minor compile time win.

llvm-svn: 65438
2009-02-25 07:04:34 +00:00
Bill Wendling
9d4eb136da Overhaul my earlier submission due to feedback. It's a large patch, but most of
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379
2009-02-24 08:30:20 +00:00
Bill Wendling
0d8316c5e0 - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367
2009-02-24 02:35:30 +00:00
Scott Michel
3f8637305f Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.

llvm-svn: 65296
2009-02-22 23:36:09 +00:00
Bill Wendling
983f839148 Temporarily revert r65065. It was causing test failures.
llvm-svn: 65068
2009-02-19 21:57:07 +00:00
Bill Wendling
9af8f830c0 Check for -fast here too.
llvm-svn: 65065
2009-02-19 21:23:54 +00:00
Bill Wendling
4a86875529 Generate these labels when we're in "fast" mode, not simply when we're no in
"optimize-for-size" mode.

llvm-svn: 65064
2009-02-19 21:12:54 +00:00
Scott Michel
4c5fa6c982 Remove trailing whitespace to reduce later commit patch noise.
(Note: Eventually, commits like this will be handled via a pre-commit hook that
 does this automagically, as well as expand tabs to spaces and look for 80-col
 violations.)

llvm-svn: 64827
2009-02-17 22:15:04 +00:00
Bill Wendling
266c8bc98f --- Merging (from foreign repository) r64714 into '.':
U    include/llvm/CodeGen/DebugLoc.h
U    lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp

Enable debug location generation at -Os. This goes with the reapplication of the
r63639 patch.

llvm-svn: 64715
2009-02-17 01:04:54 +00:00
Cedric Venet
48be6b5e15 Unbreak the build on win32.
Cleanup some warning.

Remark: when struct/class are declared differently than they are defined, this make problem for VC++ since it seems to mangle class differently that struct. These error are very hard to understand and find. So please, try to keep your definition/declaration in sync.

Only tested with VS2008. hope it does not break anything. feel free to revert.

llvm-svn: 64554
2009-02-14 16:06:42 +00:00
Bill Wendling
40e4b271af Revert this. It was breaking stuff.
llvm-svn: 64428
2009-02-13 02:16:35 +00:00
Bill Wendling
83b6edd760 Turn off the old way of handling debug information in the code generator. Use
the new way, where all of the information is passed on SDNodes and machine
instructions.

llvm-svn: 64427
2009-02-13 02:01:04 +00:00
Evan Cheng
773303a763 Simplify code.
llvm-svn: 64164
2009-02-09 21:01:06 +00:00
Evan Cheng
44e58653af Make sure constant subscript is truncated to ptr size if it may not fit.
llvm-svn: 64163
2009-02-09 20:54:38 +00:00
Dale Johannesen
1580ab6b7f Remove more non-DebugLoc getNode variants. Use
getCALLSEQ_{END,START} to permit passing no DebugLoc
there.  UNDEF doesn't logically have DebugLoc; add
getUNDEF to encapsulate this.

llvm-svn: 63978
2009-02-06 23:05:02 +00:00
Bill Wendling
cd6bb3e248 Clear out the CurDebugLoc info when doing a 'clear' on the SDL object.
llvm-svn: 63967
2009-02-06 21:36:23 +00:00
Dale Johannesen
fa28929927 Reapply 63765. Patches for clang and llvm-gcc to follow.
llvm-svn: 63812
2009-02-05 01:49:45 +00:00
Dale Johannesen
c2896f9310 Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.
llvm-svn: 63800
2009-02-05 00:20:09 +00:00
Dale Johannesen
f6e1822ccd Reverting 63765. This broke the build of both clang
and llvm-gcc.

llvm-svn: 63786
2009-02-04 22:47:25 +00:00