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25165 Commits

Author SHA1 Message Date
Dan Gohman
d790a5ceee Fix a think-o in isSafeToMove. This fixes it from thinking that 
volatile memory references are safe to move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56948 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 15:04:30 +00:00
Dan Gohman
5bbee4b40a Work around an interaction between fast-isel and regalloc=local. The 
local register allocator's physreg liveness doesn't recognize subregs,
so it doesn't know that defs of %ecx that are immediately followed by
uses of %cl aren't dead. This comes up due to the way fast-isel emits
shift instructions.

This is a temporary workaround. Arguably, local regalloc should
handle subreg references correctly. On the other hand, perhaps
fast-isel should use INSERT_SUBREG instead of just assigning to the
most convenient super-register of %cl when lowering shifts.

This fixes MultiSource/Benchmarks/MallocBench/espresso,
MultiSource/Applications/hexxagon, and others, under -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56947 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 14:56:12 +00:00
Bill Wendling
5e249b4a14 "The original bug was a complaint that _mm_srli_si128 mis-compiled when passed 
a constant vector ("{0x123, 0x456}" syntax).  The fix is to simplify the
_mm_srli_si128 macro, and  move the "* 8" from the macro into the compiler
back-end.  I can't change the existing __builtins because so many people are
using them :-(."
Patch by Stuart Hastings!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56944 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 05:56:52 +00:00
Daniel Dunbar
bb14672097 Add llvm::sys::{osName,osVersion} for retrieving operating system name 
& version as strings.
 - Win32 code is untested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56942 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 01:17:28 +00:00
Devang Patel
7c31085b1c Attributes noinline alwaysinline are incompatible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56939 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 23:41:25 +00:00
Devang Patel
4ae641f4d1 Remove OptimizeForSize global. Use function attribute optsize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56937 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 23:18:38 +00:00
Dan Gohman
dc756858f9 Enable FastISel by default (on x86 and x86-64) with the -fast option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 20:39:19 +00:00
Chris Lattner
795daece23 add a new form of Type::dump that takes a module for type names, 
patch provided by Tomas Lindquist Olsen!




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56929 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 20:16:19 +00:00
Dan Gohman
aeaf245db3 Make some implicit conversions explicit, to avoid compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56927 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 19:58:59 +00:00
Dan Gohman
6d4b052579 Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms. 
This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.

Also, add some comments describing the CALL instructions' physreg
operand uses and defs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56925 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 18:28:06 +00:00
Jim Grosbach
efd30ba798 Fix typo s/ther/there/ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 18:16:49 +00:00
Duncan Sands
5d0392c6b3 Factorize code: remove variants of "strip off 
pointer bitcasts and GEP's", and centralize the
logic in Value::getUnderlyingObject.  The
difference with stripPointerCasts is that
stripPointerCasts only strips GEPs if all
indices are zero, while getUnderlyingObject
strips GEPs no matter what the indices are.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56922 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 15:25:41 +00:00
Dan Gohman
38ac062c2f Fold trivial two-operand tokenfactors where the operands are equal 
immediately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56921 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 15:11:19 +00:00
Dan Gohman
10b49489bf Don't prepend a space character for constants in Value::print. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56920 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 15:09:37 +00:00
Dan Gohman
929d3eb171 Fix typos in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56919 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 15:07:49 +00:00
Nuno Lopes
86364023e6 revert the addition of Preverves(CallGraph), per Duncan's comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56917 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 09:13:40 +00:00
Dan Gohman
2662d55866 Mark CALL instructions as having a Use of ESP/RSP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56911 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 04:14:30 +00:00
Dan Gohman
586b7b7547 Call ScalarEvolution's deleteValueFromRecords before deleting an 
instruction, not after. This fixes some uses of free'd memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56908 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 02:02:03 +00:00
Bill Wendling
6158d8492c Implement the -fno-builtin option in the front-end, not in the back-end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56900 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-01 00:59:58 +00:00
Owen Anderson
05472ee54b Mark merged-in VNInfo's as being PHIKilled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 23:58:47 +00:00
Owen Anderson
309c6162c6 Fix a simple error in renumbering kill markaers, that took an inordinant amount of time to track down. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56889 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:51:54 +00:00
Bill Wendling
6e08738d4b Just don't transform this memset into "bzero" if no-builtin is specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56888 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:05:33 +00:00
Nuno Lopes
0483d018c4 add preserversCFG() + preservers(CallGraph) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56887 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:04:30 +00:00
Bill Wendling
fd8ca5a0ef - Initialize "--no-builtin" to "false". 
- Testcase for r56885.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56886 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 21:40:30 +00:00
Bill Wendling
6f287b22d2 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56885 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 21:22:07 +00:00
Dan Gohman
5ec9efd61b Move the primary fast-isel top-level comments to FastISel.cpp, where 
they'll be a little more visible. Also, update and reword them a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56877 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 20:48:29 +00:00
Nuno Lopes
dd7c3e4e56 add AU.setPreservesCFG() since this pass only adds and removes function attributes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 18:34:38 +00:00
Dan Gohman
f06c835f76 Optimize SelectionDAG's AssignTopologicalOrder even further. 
Completely eliminate the TopOrder std::vector. Instead, sort
the AllNodes list in place. This also eliminates the need to
call AllNodes.size(), a linear-time operation, before
performing the sort.

Also, eliminate the Sources temporary std::vector, since it
essentially duplicates the sorted result as it is being
built.

This also changes the direction of the topological sort
from bottom-up to top-down. The AllNodes list starts out in
roughly top-down order, so this reduces the amount of
reordering needed. Top-down is also more convenient for
Legalize, and ISel needed only minor adjustments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56867 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 18:30:35 +00:00
Evan Cheng
18314dc741 Add runStaticConstructorsDestructors which runs ctors / dtors of a single module. Patch by David Chisnall. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 15:51:21 +00:00
Evan Cheng
dc37786595 Re-apply 56835 along with header file changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56848 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 15:44:16 +00:00
Duncan Sands
46292be362 Revert commit 56835 since it breaks the build. 
"If a re-materializable instruction has a register
operand, the spiller will change the register operand's
spill weight to HUGE_VAL to avoid it being spilled.
However, if the operand is already in the queue ready
to be spilled, avoid re-materializing it".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56837 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 10:00:30 +00:00
Evan Cheng
d41474d2c0 If a re-materializable instruction has a register operand, the spiller will change the register operand's spill weight to HUGE_VAL to avoid it being spilled. However, if the operand is already in the queue ready to be spilled, avoid re-materializing it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56835 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 06:36:58 +00:00
Nick Lewycky
a06cf82a7b Fix misoptimization of: xor i1 (icmp eq (X, C1), icmp s[lg]t (X, C2)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56834 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 06:08:34 +00:00
Dan Gohman
5396c99baa Fix X86FastISel's output for x86-32 PIC constant pool addresses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56829 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 01:21:32 +00:00
Dan Gohman
57c3dac0df Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp 
and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56825 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 00:58:23 +00:00
Dan Gohman
9b66d73bb1 Disable all x87 usage, including f32 and f64 when the subtarget 
doesn't have SSE(2), with X86FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56823 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 00:48:39 +00:00
Dale Johannesen
71d1bf55a2 Remove misuse of ReplaceNodeResults for atomics with 
valid types.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 22:25:26 +00:00
Dan Gohman
a43abd102f Fix FastISel to not initialize the PIC-base register multiple times 
in functions with PIC references from more than one basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56807 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 21:55:50 +00:00
Dan Gohman
7962e856d1 Fix an over-pessimization about GlobalVariable addresses in X86FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56802 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 21:13:15 +00:00
Devang Patel
652203f3f3 Support inreg, zext and sext as return value attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56801 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 20:49:50 +00:00
Evan Cheng
d47e0b664f Fix PR2835. Do not change the width of a volatile load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 17:26:18 +00:00
Duncan Sands
6cccf03d02 Speed up these passes when the callgraph has 
huge simply connected components.  Suggested
by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56787 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 14:59:04 +00:00
Nuno Lopes
5ed3b894c9 remove redundant test (mayBeOverriden() includes hasLinkOnceLinkage) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 14:40:32 +00:00
Duncan Sands
224c86ee77 Tweak some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56784 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 13:35:31 +00:00
Duncan Sands
5df3186f59 Rename isWeakForLinker to mayBeOverridden. Use it 
instead of hasWeakLinkage in a bunch of optimization
passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-29 11:25:42 +00:00
Evan Cheng
184793fc8a Re-apply 56683 with fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-27 01:56:22 +00:00
Daniel Dunbar
02a4da2c22 Unbreak build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56727 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-27 00:22:09 +00:00
Devang Patel
2c9c3e7368 Implement function notes as function attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56716 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:51:19 +00:00
Dale Johannesen
e7261863c5 Generated files for warning fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56715 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:46:20 +00:00
Dale Johannesen
4598a4ece8 Fix a compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56714 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:45:53 +00:00
Evan Cheng
b7a75a5a54 Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 23:41:32 +00:00
Devang Patel
19c874638d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:53:05 +00:00
Bill Wendling
d5d8191b20 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"
...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:10:44 +00:00
Dan Gohman
533d3b3f37 Fix missing whitespace in the printing of function notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 22:02:59 +00:00
Dan Gohman
7810bfed55 Rename ConstantSDNode's getSignExtended to getSExtValue, for 
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:54:37 +00:00
Dan Gohman
83ccd14228 Mark lea fi# as being really rematerializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:30:20 +00:00
Evan Cheng
c739489c19 unpckhps requires sse1, punpckhdq requires sse2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 21:26:30 +00:00
Dan Gohman
09aae469ce Fix X86FastISel's address folding to check displacement 
values for overflow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56686 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 20:04:15 +00:00
Evan Cheng
36a55023c1 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:48:35 +00:00
Oscar Fuentes
dbc2e856fc CMake: Builds all examples. Corrected name of CBackend target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56682 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:48:03 +00:00
Dale Johannesen
dfe8c84e1e Generated files for previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:32:34 +00:00
Dale Johannesen
7fefc6b4fe Another file I forgot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:31:53 +00:00
Dale Johannesen
86098bd6a6 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:31:26 +00:00
Dan Gohman
97135e1ee5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56676 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:15:30 +00:00
Evan Cheng
a67f32abb5 Avoid spilling EBP / RBP twice in the prologue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56675 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 19:14:21 +00:00
Owen Anderson
082d351361 We don't need to insert copies for implicit_def's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 18:50:46 +00:00
Evan Cheng
4367ff7aff X86 address displacement field must be interpreted as a 32-bit value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56665 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 16:58:16 +00:00
Oscar Fuentes
e1ad087fcb CMake: Builds all targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56641 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 04:40:32 +00:00
Dan Gohman
5af29c2e57 Disable support for x86_f80 in X86FastISel. Supporting it would 
require more work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56637 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 01:39:32 +00:00
Bill Wendling
d751c64a67 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-26 00:28:12 +00:00
Evan Cheng
4dcc8a373d Prefer movlhps over punpcklqdq, etc. in more cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56627 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 23:35:16 +00:00
Dan Gohman
789ce77c6a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56626 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 23:34:02 +00:00
Bill Wendling
c4f72dd6e7 Make pointer parameter const for isUsedInBasicBlock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 22:42:01 +00:00
Devang Patel
0598866c05 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 21:00:45 +00:00
Anton Korobeynikov
32b952a2a6 Reapply 56585:56589 with proper fix for some gcc versions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56621 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 21:00:33 +00:00
Evan Cheng
0b457f0c3a 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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56620 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 20:50:48 +00:00
Dale Johannesen
c9c6da61ac 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56619 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 20:47:45 +00:00
Dan Gohman
0c8927efed Avoid a spurious extra space character when printing empty structs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:37:20 +00:00
Dan Gohman
5dd9c2e9ae Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:22:52 +00:00
Dan Gohman
77ca41e5c3 Don't print fast-isel debug messages by default. Thanks Chris! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:21:42 +00:00
Dan Gohman
2c442eda74 Don't forget the newline in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:17:27 +00:00
Dan Gohman
33134c4a75 FastISel support for debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:05:24 +00:00
Richard Pennington
4b052dc63d bug 2812: Segmentation fault on a big emdiam processor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 16:15:10 +00:00
Dan Gohman
2cc3aa4459 PIC support in X86FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 15:24:26 +00:00
Evan Cheng
688535e005 Temporarily backing out 56585:56589 to unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 07:38:08 +00:00
Dan Gohman
dceffe66b9 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:28:51 +00:00
Dan Gohman
2c4bf119be Enable DeadMachineInstructionElim when Fast-ISel is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:14:49 +00:00
Dan Gohman
723ac3720f Add debug output to this pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56602 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:06:50 +00:00
Evan Cheng
89d4a2848d pmovsxbq etc. requires sse4.1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:49:51 +00:00
Dan Gohman
02dae4ba06 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56599 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:37:07 +00:00
Evan Cheng
aa765b8c35 <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!") 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56597 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 00:14:04 +00:00
Dan Gohman
bd0f144cc2 Give LowerSubregs.cpp a top-level description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56596 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:44:12 +00:00
Evan Cheng
ca57f78332 Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56594 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:27:55 +00:00
Evan Cheng
8a186ae4aa X86ISD::VZEXT_LOAD should produce and fold a chain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56593 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:26:36 +00:00
Dale Johannesen
8e3455ba17 Remove SelectionDag early allocation of registers 
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 23:13:09 +00:00
Anton Korobeynikov
742fd195a6 Minor cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:54 +00:00
Anton Korobeynikov
621cdf0057 Get rid of virtual inheritance for ARM TAI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:27 +00:00
Anton Korobeynikov
93ed1029ec Get rid of virtual inheritance for PPC TAI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56586 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:22:03 +00:00
Anton Korobeynikov
8490322fa9 Use crazy template-based inheritance instead of virtual one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov
541af7f769 Use helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56584 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-24 22:21:04 +00:00