Commit Graph

169 Commits

Author SHA1 Message Date
Devang Patel 9ac4390bf4 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 653dee0884 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 83593f4167 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 097f630dad Make these errors more noticable in build logs.
llvm-svn: 68998
2009-04-13 22:26:09 +00:00
Devang Patel 0431504fb2 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 80be3511ed 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 825236b116 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 790e60999e 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 de912e2475 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 0e8d199f91 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 e6db8ca5eb 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 10f7c3deb7 Revert prev. patch for now.
llvm-svn: 68569
2009-04-07 23:00:04 +00:00
Devang Patel ddafc03e41 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 97a20b8dbf 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 2e9f42bed5 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 eb1646d28c 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 c35847e109 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 42eceb3491 Tidy a bit more.
llvm-svn: 67617
2009-03-24 15:25:07 +00:00
Chris Lattner 246eda43bd 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 968c3b0d6e 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 2e55923fba 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 4606b12108 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 2363d0b8b9 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 fa54bc2052 Oops...I committed too much.
llvm-svn: 66867
2009-03-13 04:39:26 +00:00
Bill Wendling b02eadf660 Temporarily XFAIL this test.
llvm-svn: 66866
2009-03-13 04:37:11 +00:00
Bill Wendling c6869f4695 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 a49de9de2e Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
llvm-svn: 65482
2009-02-25 22:49:59 +00:00
Dale Johannesen 7d12ea0f62 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 86673f2806 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 c5437ea429 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 786c5973f7 - 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 9d31aca679 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 7b9f38ad37 Temporarily revert r65065. It was causing test failures.
llvm-svn: 65068
2009-02-19 21:57:07 +00:00
Bill Wendling df78dcc0b2 Check for -fast here too.
llvm-svn: 65065
2009-02-19 21:23:54 +00:00
Bill Wendling 19e0a5b3c3 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 cf0da6c597 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 3c50922ea0 --- 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 d1e179d992 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 65c0fd4c44 Revert this. It was breaking stuff.
llvm-svn: 64428
2009-02-13 02:16:35 +00:00
Bill Wendling 1c21ac3066 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 fe174df170 Simplify code.
llvm-svn: 64164
2009-02-09 21:01:06 +00:00
Evan Cheng 020588cee3 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 84935759d5 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 03c34d0d3c 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 b842d529a3 Reapply 63765. Patches for clang and llvm-gcc to follow.
llvm-svn: 63812
2009-02-05 01:49:45 +00:00
Dale Johannesen 7ae8c8b108 Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.
llvm-svn: 63800
2009-02-05 00:20:09 +00:00
Dale Johannesen ae616c2c61 Reverting 63765. This broke the build of both clang
and llvm-gcc.

llvm-svn: 63786
2009-02-04 22:47:25 +00:00
Nate Begeman 6ae3aa83d0 New feature: add support for target intrinsics being defined in the
target directories themselves.  This also means that VMCore no longer
needs to know about every target's list of intrinsics.  Future work
will include converting the PowerPC target to this interface as an
example implementation.

llvm-svn: 63765
2009-02-04 19:47:21 +00:00
Dale Johannesen f2bb6f09a3 Remove some more non-DebugLoc versions of construction
functions, with callers adjusted to fit.

llvm-svn: 63705
2009-02-04 01:48:28 +00:00
Dale Johannesen 85263882aa Remove a few non-DebugLoc versions of node creation
functions.

llvm-svn: 63703
2009-02-04 01:17:06 +00:00