2fe6bee5b6
Teach DAGCombine to fold constant offsets into GlobalAddress nodes,
...
and add a TargetLowering hook for it to use to determine when this
is legal (i.e. not in PIC mode, etc.)
This allows instruction selection to emit folded constant offsets
in more cases, such as the included testcase, eliminating the need
for explicit arithmetic instructions.
This eliminates the need for the C++ code in X86ISelDAGToDAG.cpp
that attempted to achieve the same effect, but wasn't as effective.
Also, fix handling of offsets in GlobalAddressSDNodes in several
places, including changing GlobalAddressSDNode's offset from
int to int64_t.
The Mips, Alpha, Sparc, and CellSPU targets appear to be
unaware of GlobalAddress offsets currently, so set the hook to
false on those targets.
llvm-svn: 57748
2008-10-18 02:06:02 +00:00
6de2556205
Revert r57699. It's causing regressions in
...
test/CodeGen/X86/2008-09-17-inline-asm-1.ll
and a few others, and it breaks the llvm-gcc build.
llvm-svn: 57747
2008-10-18 01:03:45 +00:00
94169f1021
Fix PR2898. Spiller delete a store for reuse before it knows for sure the reuse happened.
...
Patch by Lang Hames!
llvm-svn: 57720
2008-10-17 20:56:41 +00:00
fe9e2c587d
The Dwarf writer was comparing mangled and unmangled names for C++ code when we
...
have an unreachable block in a function. This was triggering the assert. This is
a horrid hack to cover this up.
Oh! for a good debug info architecture!
llvm-svn: 57714
2008-10-17 18:48:57 +00:00
c7e65f4377
Fix a bug where the x86 backend would reject 64-bit r constraints when
...
in 32-bit mode instead of assigning a register pair. This has nothing to
do with PR2356, but I happened to notice it while working on it.
llvm-svn: 57704
2008-10-17 17:59:52 +00:00
052092bf9c
Fix PR2356 on PowerPC: if we have an input and output that are tied together
...
that have different sizes (e.g. i32 and i64) make sure to reserve registers for
the bigger operand.
llvm-svn: 57699
2008-10-17 17:52:49 +00:00
00c5d69998
remove an xfailed test.
...
llvm-svn: 57695
2008-10-17 17:26:48 +00:00
e212b970cf
remove this test: it is xfailed anyway, and is failing for a reason
...
other than why it was xfailed.
llvm-svn: 57694
2008-10-17 17:26:19 +00:00
08acb24225
Fix a very subtle spiller bug: UpdateKills should not forget to track defs of aliases.
...
llvm-svn: 57673
2008-10-17 06:16:07 +00:00
ca0546facc
Fun x86 encoding tricks: when adding an immediate value of 128,
...
use a SUB instruction instead of an ADD, because -128 can be
encoded in an 8-bit signed immediate field, while +128 can't be.
This avoids the need for a 32-bit immediate field in this case.
A similar optimization applies to 64-bit adds with 0x80000000,
with the 32-bit signed immediate field.
To support this, teach tablegen how to handle 64-bit constants.
llvm-svn: 57663
2008-10-17 01:33:43 +00:00
a39b0a1f05
Define patterns for shld and shrd that match immediate
...
shift counts, and patterns that match dynamic shift counts
when the subtract is obscured by a truncate node.
Add DAGCombiner support for recognizing rotate patterns
when the shift counts are defined by truncate nodes.
Fix and simplify the code for commuting shld and shrd
instructions to work even when the given instruction doesn't
have a parent, and when the caller needs a new instruction.
These changes allow LLVM to use the shld, shrd, rol, and ror
instructions on x86 to replace equivalent code using two
shifts and an or in many more cases.
llvm-svn: 57662
2008-10-17 01:23:35 +00:00
016f16daf1
Fix this test so it actually runs the grep lines.
...
llvm-svn: 57653
2008-10-16 23:57:54 +00:00
7451f87273
Testcase for PR2762.
...
llvm-svn: 57633
2008-10-16 08:56:46 +00:00
1baace07c4
apply Eli's patch for PR2165 and provide a testcase.
...
llvm-svn: 57625
2008-10-16 05:26:51 +00:00
bc0278400c
Teach instcombine's visitLoad to scan back several instructions
...
to find opportunities for store-to-load forwarding or load CSE,
in the same way that visitStore scans back to do DSE. Also, define
a new helper function for testing whether the addresses of two
memory accesses are known to have the same value, and use it in
both visitStore and visitLoad.
These two changes allow instcombine to eliminate loads in code
produced by front-ends that frequently emit obviously redundant
addressing for memory references.
llvm-svn: 57608
2008-10-15 23:19:35 +00:00
5e39031007
Testcase for PR2894.
...
llvm-svn: 57604
2008-10-15 22:34:34 +00:00
ba13e8db17
Add global variable to test for consistency
...
llvm-svn: 57597
2008-10-15 20:22:44 +00:00
99ed98ab40
This is not failing anymore
...
llvm-svn: 57596
2008-10-15 20:13:10 +00:00
f998a65980
Testcase for PR1638.
...
llvm-svn: 57590
2008-10-15 18:27:15 +00:00
25f74dc574
Fix the .ll grammar rules to allow any type before an 'i32', not just an
...
integer type. Invalid things like 'float 42' are now rejected by the
semantic analysis in the productions not the parser. This fixes PR2733.
llvm-svn: 57560
2008-10-15 06:16:45 +00:00
3b0f5e4d61
- Add target lowering hooks that specify which setcc conditions are illegal,
...
i.e. conditions that cannot be checked with a single instruction. For example,
SETONE and SETUEQ on x86.
- Teach legalizer to implement *illegal* setcc as a and / or of a number of
legal setcc nodes. For now, only implement FP conditions. e.g. SETONE is
implemented as SETO & SETNE, SETUEQ is SETUO | SETEQ.
- Move x86 target over.
llvm-svn: 57542
2008-10-15 02:05:31 +00:00
0f8155ae4e
Prevent assert when using '"' in names (via hexadecimal).
...
Update LangRef to mention \xx quoting in names.
llvm-svn: 57538
2008-10-14 23:51:43 +00:00
d885f6e139
Combine (fcmp cc0 x, y) | (fcmp cc1 x, y) into a single fcmp when possible.
...
llvm-svn: 57515
2008-10-14 18:44:08 +00:00
ce70752b11
- Somehow I forgot about one / une.
...
- Renumber fcmp predicates to match their icmp counterparts.
- Try swapping operands to expose more optimization opportunities.
llvm-svn: 57513
2008-10-14 18:13:38 +00:00
67786cce66
Optimize anding of two fcmp into a single fcmp if the operands are the same. e.g. uno && ueq -> ueq
...
ord && olt -> olt
ord && ueq -> oeq
llvm-svn: 57507
2008-10-14 17:15:11 +00:00
acc2eb484b
new testcase for PR2797
...
llvm-svn: 57481
2008-10-14 06:56:04 +00:00
56b6885104
When doing the very-late shift-and address-mode optimization,
...
create a new DAG node to represent the new shift to keep the
DAG consistent, even though it'll almost always be folded into
the address.
If a user of the resulting address has multiple uses, the
nodes may get revisited by a later MatchAddress call, in which
case DAG inconsistencies do matter.
This fixes PR2849.
llvm-svn: 57465
2008-10-13 20:52:04 +00:00
1db4fbdfbe
Don't barf on 32 bit platforms if llvm-gcc is
...
not built with 64 bit support. Since this test
passes without -m64 on x86-32-linux, just remove
the -m64.
llvm-svn: 57462
2008-10-13 19:56:36 +00:00
da9b752883
FIX PR2794. Make sure SIGN_EXTEND_INREG nodes introduced by LegalizeSetCCOperands are leglized. Patch by Richard Pennington.
...
llvm-svn: 57460
2008-10-13 18:46:18 +00:00
4c499c4fa6
Also update sub-register intervals after a trivial computation is rematt'ed for a copy instruction. PR2775.
...
llvm-svn: 57458
2008-10-13 18:35:52 +00:00
762f0f53ec
Add a test case for _Complex passed as a FCA.
...
llvm-svn: 57456
2008-10-13 18:13:07 +00:00
bb5d04fc82
Remove "long" variants so these will pass on a 64-bit host.
...
llvm-svn: 57418
2008-10-12 18:40:49 +00:00
da435910e8
Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changes
...
a couple other cases for clarity, but shouldn't affect correctness.
Patch by Eli Friedman!
llvm-svn: 57387
2008-10-11 22:55:00 +00:00
2753955fc0
Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as
...
parameters instead of raw Constants. This prevents the constants from
being selected by the isel pass, fixing PR2735.
llvm-svn: 57385
2008-10-11 22:08:30 +00:00
647a1e532b
Check loop exit predicate properly while eliminating one iteration loop.
...
This patch fixes PR 2869
llvm-svn: 57369
2008-10-10 22:02:57 +00:00
a0cce200c5
Add testcase for 'r' inline asm operand
...
llvm-svn: 57361
2008-10-10 20:28:59 +00:00
b36d3b2bb7
This does not fail anymore
...
llvm-svn: 57360
2008-10-10 20:28:32 +00:00
e6b3093b18
Add sparc test for memory operand used in inline asm
...
llvm-svn: 57348
2008-10-10 10:15:33 +00:00
b3692f7d38
This is not failing anymore
...
llvm-svn: 57347
2008-10-10 10:15:18 +00:00
1a84f86271
get CodeGen/Alpha/mul128.ll to work.
...
llvm-svn: 57318
2008-10-09 04:50:56 +00:00
60ad173dfe
Remove -disable-fast-isel. Use cl::boolOrDefault with -fast-isel
...
instead.
So now: -fast-isel or -fast-isel=true enable fast-isel, and
-fast-isel=false disables it. Fast-isel is also on by default
with -fast, and off by default otherwise.
llvm-svn: 57270
2008-10-07 23:00:56 +00:00
b8118fd432
Add a testcase for i256 add. i256 isn't fully supported in
...
codegen right now, but add and subtract work.
llvm-svn: 57260
2008-10-07 20:39:12 +00:00
83f5f40b6a
128 mul test, xfailed
...
llvm-svn: 57250
2008-10-07 17:13:32 +00:00
1699ad9030
Certain patterns involving the "movss" instruction were marked as requiring SSE2, when in reality movss is an SSE1 instruction.
...
llvm-svn: 57246
2008-10-07 16:14:11 +00:00
9a04782fda
add support for running the test suite with valgrind. to run it just type 'make VG=1', as in clang
...
beware of the 42000 leaks reported by valgrind in the Constant.cpp + Type.cpp files. it needs fixing IMHO
llvm-svn: 57245
2008-10-07 14:48:14 +00:00
3a9be150be
Expand arith on machines without carry flags
...
llvm-svn: 57243
2008-10-07 14:15:42 +00:00
66f30f81a8
fix filetype suffix
...
llvm-svn: 57237
2008-10-07 06:41:02 +00:00
315e3c0e64
no need to write the output to the disk
...
llvm-svn: 57232
2008-10-07 04:06:55 +00:00
3b893a905e
Add test case for ADDC ADDE expansion
...
llvm-svn: 57228
2008-10-07 02:30:13 +00:00
40aafce00d
Fix typo, fix PR 2865.
...
llvm-svn: 57221
2008-10-06 23:22:54 +00:00
6c6729f3a8
Be more precise about which conversions of NaNs
...
are Inexact. (These are not Inexact as defined
by IEEE754, but that seems like a reasonable way
to abstract what happens: information is lost.)
llvm-svn: 57218
2008-10-06 22:59:10 +00:00
94d14f2d45
Fix PR2850 and PR2863. Only generate movddup for 128-bit SSE vector shuffles.
...
llvm-svn: 57210
2008-10-06 21:13:08 +00:00
c3e3ca9a45
Remove interfaces implemented by dead pass from the list of available passes.
...
Patch By Matthijs Kooijman.
llvm-svn: 57202
2008-10-06 20:36:36 +00:00
dd082cf676
This is an objective-c test, not an objective-c++ one.
...
llvm-svn: 57193
2008-10-06 18:42:48 +00:00
cbe5e16eb5
Allow scalarrepl to treat an all-zero GEP just as bitcast.
...
This includes not marking a GEP involving a vector as unsafe, but only when it
has all zero indices. This allows scalarrepl to work in a few more cases.
llvm-svn: 57177
2008-10-06 16:23:31 +00:00
bae7a517cc
Actually run Obj-C++ tests if llvm-gcc supports.
...
Before there were two problems: (1) configure
turned "obj-c++" into "obj" in the langs line;
(2) the dejagnu library called it objc++ not
obj-c++.
Now the problem is that some of these tests don't
pass!
llvm-svn: 57167
2008-10-06 10:31:21 +00:00
917a6c1343
rewrite bswap matching to be more general, allowing arbitrary
...
shifting and masking inside a bswap expr. This allows it to handle
the cases from PR2842, which involve the intermediate 'or'
expressions being shifted, not just the input value.
llvm-svn: 57095
2008-10-05 02:13:19 +00:00
1d35e9aebe
Ignore loads from and stores to local memory (i.e. allocas)
...
when deciding whether to mark a function readnone/readonly.
Since the pass is currently run before SROA, this may be
quite helpful. Requested by Chris on IRC.
llvm-svn: 57050
2008-10-04 13:24:24 +00:00
fc9bc3cf23
Allow the construction of SCEVs with SCEVCouldNotCompute operands, by
...
implementing folding. Fixes PR2857.
llvm-svn: 57049
2008-10-04 11:19:07 +00:00
b52ef06c8c
Revert r56675 - it breaks unwinding runtime everywhere.
...
llvm-svn: 57048
2008-10-04 11:09:36 +00:00
78bb44fcd4
Fix a bug in the local allocator's liveness computation where it
...
was setting kill flags on tied uses in two-address instructions.
The kill flags were causing the allocator to think it could
allocate the use and its tied def in different registers.
llvm-svn: 57039
2008-10-04 00:31:14 +00:00
f963403b58
Nick Lewycky's patch.
...
While hosting instruction check PHI node.
llvm-svn: 57025
2008-10-03 18:57:37 +00:00
51a5c9b7f3
New test case.
...
llvm-svn: 57023
2008-10-03 18:12:59 +00:00
867d549fce
Handle some 64-bit atomics on x86-32, some of the time.
...
llvm-svn: 56963
2008-10-02 18:53:47 +00:00
88536398ff
Fix a think-o in isSafeToMove. This fixes it from thinking that
...
volatile memory references are safe to move.
llvm-svn: 56948
2008-10-02 15:04:30 +00:00
dfc507d2b5
Disable fast-isel for this test, as it doesn't emit the same
...
number of instructions.
llvm-svn: 56940
2008-10-01 23:48:35 +00:00
9cc9812653
Attributes noinline alwaysinline are incompatible
...
llvm-svn: 56939
2008-10-01 23:41:25 +00:00
1b76f2c40b
Remove OptimizeForSize global. Use function attribute optsize.
...
llvm-svn: 56937
2008-10-01 23:18:38 +00:00
5c8c00af1f
Split this test and move it into target-specific directories.
...
This fixes failures on configurations that don't have one or the
other targets enabled.
llvm-svn: 56926
2008-10-01 19:46:30 +00:00
7354227de0
nounwind-ify this test.
...
llvm-svn: 56918
2008-10-01 15:07:14 +00:00
3113fa8f32
Don't leave an output file in the test directory.
...
llvm-svn: 56910
2008-10-01 04:13:23 +00:00
920f6d588e
Moved this option to the front-end.
...
llvm-svn: 56901
2008-10-01 01:02:18 +00:00
1df16dff64
Use explicit target-triples to unbreak this test on non-darwin systems.
...
llvm-svn: 56896
2008-10-01 00:25:38 +00:00
1782584f56
Just don't transform this memset into "bzero" if no-builtin is specified.
...
llvm-svn: 56888
2008-09-30 22:05:33 +00:00
e818bc159f
- Initialize "--no-builtin" to "false".
...
- Testcase for r56885.
llvm-svn: 56886
2008-09-30 21:40:30 +00:00
9156bd2f48
Re-apply 56835 along with header file changes.
...
llvm-svn: 56848
2008-09-30 15:44:16 +00:00
2b9adce1d0
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".
llvm-svn: 56837
2008-09-30 10:00:30 +00:00
9469049f7d
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.
...
llvm-svn: 56835
2008-09-30 06:36:58 +00:00
e8ced3ec19
Fix misoptimization of: xor i1 (icmp eq (X, C1), icmp s[lg]t (X, C2))
...
llvm-svn: 56834
2008-09-30 06:08:34 +00:00
221fe42006
Support inreg, zext and sext as return value attributes.
...
llvm-svn: 56801
2008-09-29 20:49:50 +00:00
82237f2f42
Fix PR2835. Do not change the width of a volatile load.
...
llvm-svn: 56792
2008-09-29 17:26:18 +00:00
be4fc9b9fb
Add a testcase showing that scalarrepl supports first class structs.
...
I originally made this script to show that scalarrepl didn't support them, but
it turned out it does. Better to still add the testcase then.
llvm-svn: 56781
2008-09-29 10:42:13 +00:00
3774b2f292
Re-apply 56683 with fixes.
...
llvm-svn: 56748
2008-09-27 01:56:22 +00:00
db937ec8fa
Update tests.
...
llvm-svn: 56730
2008-09-27 00:25:28 +00:00
9eb525d4f9
Implement function notes as function attributes.
...
llvm-svn: 56716
2008-09-26 23:51:19 +00:00
7d6fa97567
Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size.
...
llvm-svn: 56711
2008-09-26 23:41:32 +00:00
c966a737c5
Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc:
...
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter > for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$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
d77cbe8947
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
994dd0bbec
Avoid spilling EBP / RBP twice in the prologue.
...
llvm-svn: 56675
2008-09-26 19:14:21 +00:00
9dbe45c000
Prefer movlhps over punpcklqdq, etc. in more cases.
...
llvm-svn: 56627
2008-09-25 23:35:16 +00:00
74c9ed91b0
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
c50ada2f56
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
f8ead16b50
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
86d421df23
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
423b4f24c8
Test fp not.
...
llvm-svn: 56534
2008-09-24 00:50:16 +00:00
e0add20c1b
Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc.
...
llvm-svn: 56526
2008-09-24 00:05:32 +00:00
9c40c28926
Rationalize the names of passes that print information:
...
-callgraph => print-callgraph
-callscc => print-callgraph-sccs
-cfgscc => print-cfg-sccs
-externalfnconstants => print-externalfnconstants
-print => print-function
-print-alias-sets (no change)
-print-callgraph => dot-callgraph
-print-cfg => dot-cfg
-print-cfg-only => dot-cfg-only
-print-dom-info (no change)
-printm => print-module
-printusedtypes => print-used-types
llvm-svn: 56487
2008-09-23 12:47:39 +00:00
9e9426cb82
Support x86 specific inline asm modifier 'J'.
...
llvm-svn: 56483
2008-09-22 23:57:37 +00:00
3276416fa4
Test case for fp logical instructions.
...
llvm-svn: 56474
2008-09-22 22:19:34 +00:00
796a271c5f
Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.
...
llvm-svn: 56436
2008-09-22 14:50:07 +00:00
Dan Gohman