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Commit Graph

24983 Commits

Author SHA1 Message Date
Evan Cheng
28d9b3a8ad Re-apply 56683 with fixes.
llvm-svn: 56748
2008-09-27 01:56:22 +00:00
Daniel Dunbar
dc1d75b1b5 Unbreak build.
llvm-svn: 56727
2008-09-27 00:22:09 +00:00
Devang Patel
47a504c87c Implement function notes as function attributes.
llvm-svn: 56716
2008-09-26 23:51:19 +00:00
Dale Johannesen
54cc5b6eee Generated files for warning fix.
llvm-svn: 56715
2008-09-26 23:46:20 +00:00
Dale Johannesen
96018ccd87 Fix a compiler warning.
llvm-svn: 56714
2008-09-26 23:45:53 +00:00
Evan Cheng
d63fc80c1e Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size.
llvm-svn: 56711
2008-09-26 23:41:32 +00:00
Devang Patel
e4e6ea0728 Now Attributes are divided in three groups
- return attributes - inreg, zext and sext
- parameter attributes
- function attributes - nounwind, readonly, readnone, noreturn

Return attributes use 0 as the index.
Function attributes use ~0U as the index.

This patch requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56704
2008-09-26 22:53:05 +00:00
Bill Wendling
7273078850 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc:
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: 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.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...

llvm-svn: 56703
2008-09-26 22:10:44 +00:00
Dan Gohman
a9e963a0b4 Fix missing whitespace in the printing of function notes.
llvm-svn: 56702
2008-09-26 22:02:59 +00:00
Dan Gohman
989db64c93 Rename ConstantSDNode's getSignExtended to getSExtValue, for
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.

llvm-svn: 56700
2008-09-26 21:54:37 +00:00
Dan Gohman
3bcb327e9c Mark lea fi# as being really rematerializable.
llvm-svn: 56698
2008-09-26 21:30:20 +00:00
Evan Cheng
5ce14d532c unpckhps requires sse1, punpckhdq requires sse2.
llvm-svn: 56697
2008-09-26 21:26:30 +00:00
Dan Gohman
401470e0c7 Fix X86FastISel's address folding to check displacement
values for overflow.

llvm-svn: 56686
2008-09-26 20:04:15 +00:00
Evan Cheng
9946443460 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0.
llvm-svn: 56683
2008-09-26 19:48:35 +00:00
Oscar Fuentes
94d058ba4a CMake: Builds all examples. Corrected name of CBackend target.
llvm-svn: 56682
2008-09-26 19:48:03 +00:00
Dale Johannesen
9ce0f3e4b3 Generated files for previous patch.
llvm-svn: 56679
2008-09-26 19:32:34 +00:00
Dale Johannesen
423053d8a7 Another file I forgot.
llvm-svn: 56678
2008-09-26 19:31:53 +00:00
Dale Johannesen
3f62c40108 Add "inreg" field to CallSDNode (doesn't increase
its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.

llvm-svn: 56677
2008-09-26 19:31:26 +00:00
Dan Gohman
56b0c33a9d Factor out the code for determining when symblic addresses
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.

llvm-svn: 56676
2008-09-26 19:15:30 +00:00
Evan Cheng
b4d6625c85 Avoid spilling EBP / RBP twice in the prologue.
llvm-svn: 56675
2008-09-26 19:14:21 +00:00
Owen Anderson
70a6539add We don't need to insert copies for implicit_def's.
llvm-svn: 56674
2008-09-26 18:50:46 +00:00
Evan Cheng
0d612aad67 X86 address displacement field must be interpreted as a 32-bit value.
llvm-svn: 56665
2008-09-26 16:58:16 +00:00
Oscar Fuentes
65859a84d0 CMake: Builds all targets.
llvm-svn: 56641
2008-09-26 04:40:32 +00:00
Dan Gohman
37bd5a0d40 Disable support for x86_f80 in X86FastISel. Supporting it would
require more work.

llvm-svn: 56637
2008-09-26 01:39:32 +00:00
Bill Wendling
bf75299f0a If we have a function with an unreachable statement such that the ending debug
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
2008-09-26 00:28:12 +00:00
Evan Cheng
c8674dcfd0 Prefer movlhps over punpcklqdq, etc. in more cases.
llvm-svn: 56627
2008-09-25 23:35:16 +00:00
Dan Gohman
524c506db3 Fix a bug in which address displacements were being added to the
load from the stub, instead of the result of the load from the stub.

llvm-svn: 56626
2008-09-25 23:34:02 +00:00
Bill Wendling
8b4fecfb09 Make pointer parameter const for isUsedInBasicBlock.
llvm-svn: 56625
2008-09-25 22:42:01 +00:00
Devang Patel
64dd7a2e89 Large mechanical patch.
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
2008-09-25 21:00:45 +00:00
Anton Korobeynikov
7367de00cf Reapply 56585:56589 with proper fix for some gcc versions
llvm-svn: 56621
2008-09-25 21:00:33 +00:00
Evan Cheng
d190aeb62d With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps
llvm-svn: 56620
2008-09-25 20:50:48 +00:00
Dale Johannesen
62f64ab4c8 Accept 'inreg' attribute on x86 functions as
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619
2008-09-25 20:47:45 +00:00
Dan Gohman
f03be3916e Avoid a spurious extra space character when printing empty structs.
llvm-svn: 56616
2008-09-25 17:37:20 +00:00
Dan Gohman
9bb92ce6e9 Support for i1 XOR in FastISel. It is actually safe because
i1 operands are assumed to already by zero-extended.

llvm-svn: 56615
2008-09-25 17:22:52 +00:00
Dan Gohman
51cd436ad8 Don't print fast-isel debug messages by default. Thanks Chris!
llvm-svn: 56614
2008-09-25 17:21:42 +00:00
Dan Gohman
5ee9d9af7f Don't forget the newline in debug output.
llvm-svn: 56613
2008-09-25 17:17:27 +00:00
Dan Gohman
b63e6de501 FastISel support for debug info.
llvm-svn: 56610
2008-09-25 17:05:24 +00:00
Richard Pennington
1db9263b05 bug 2812: Segmentation fault on a big emdiam processor.
llvm-svn: 56609
2008-09-25 16:15:10 +00:00
Dan Gohman
6f5c6be90f PIC support in X86FastISel.
llvm-svn: 56608
2008-09-25 15:24:26 +00:00
Evan Cheng
12a67b5226 Temporarily backing out 56585:56589 to unbreak the build.
llvm-svn: 56607
2008-09-25 07:38:08 +00:00
Dan Gohman
1776533304 Fix a recent fast-isel coverage regression - don't bail out before
giving the target a chance to materialize constants.

llvm-svn: 56605
2008-09-25 01:28:51 +00:00
Dan Gohman
ed3216739e Enable DeadMachineInstructionElim when Fast-ISel is enabled.
llvm-svn: 56604
2008-09-25 01:14:49 +00:00
Dan Gohman
32c4066d62 Add debug output to this pass.
llvm-svn: 56602
2008-09-25 01:06:50 +00:00
Evan Cheng
d8a6a7beaa pmovsxbq etc. requires sse4.1.
llvm-svn: 56600
2008-09-25 00:49:51 +00:00
Dan Gohman
57dc5e1698 Refactor the code that adds standard LLVM codegen passes into
a separate function, eliminating duplication between the
add-passes-for-file and add-passes-for-machine-code code.

llvm-svn: 56599
2008-09-25 00:37:07 +00:00
Evan Cheng
bac8250ba4 <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!")
llvm-svn: 56597
2008-09-25 00:14:04 +00:00
Dan Gohman
4855b659d9 Give LowerSubregs.cpp a top-level description.
llvm-svn: 56596
2008-09-24 23:44:12 +00:00
Evan Cheng
efd1f614ff Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD.
llvm-svn: 56594
2008-09-24 23:27:55 +00:00
Evan Cheng
1d0ed88bf9 X86ISD::VZEXT_LOAD should produce and fold a chain.
llvm-svn: 56593
2008-09-24 23:26:36 +00:00
Dale Johannesen
4184c23365 Remove SelectionDag early allocation of registers
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.

llvm-svn: 56592
2008-09-24 23:13:09 +00:00