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Commit Graph

5682 Commits

Author SHA1 Message Date
Evan Cheng
bd15e330d0 For whatever the reason, x86 CallingConv::Fast (i.e. fastcc) was not passing scalar arguments in registers. This patch defines a new fastcc CC which is slightly different from the FastCall CC. In addition to passing integer arguments in ECX and EDX, it also specify doubles are passed in 8-byte slots which are 8-byte aligned (instead of 4-byte aligned). This avoids a potential performance hazard where doubles span cacheline boundaries.
llvm-svn: 55807
2008-09-04 22:59:58 +00:00
Dale Johannesen
51f5f5dfd9 Adjust tests to expect new math intrinsics to be
emitted only when errno is not in use.

llvm-svn: 55797
2008-09-04 21:24:28 +00:00
Dale Johannesen
8a3d70fe55 Adjust libcalls tests to expect intrinsic for exp2
llvm-svn: 55784
2008-09-04 18:44:20 +00:00
Owen Anderson
cd3ee9198d Fix the ordering of operands to the store (inverted relative to LLVM IR), and fix the testcase.
llvm-svn: 55777
2008-09-04 16:48:33 +00:00
Owen Anderson
35485dbae3 Add a first attempt at implementing stores for X86 fast isel using target hooks.
Dan or Evan, please review.

llvm-svn: 55764
2008-09-04 07:08:58 +00:00
Evan Cheng
9c728a557d Load from GV stub should be locally CSE'd.
llvm-svn: 55763
2008-09-04 06:18:33 +00:00
Evan Cheng
53ce5fa5ce Remove code that pad number of bytes to pop for X86_FastCall CC. The code doesn't do the "aligning" for Cygwin, Mingw, and Windows. But aligning it on Darwin and Linux breaks gcc compatibility. That ruled out all the platforms we support!
llvm-svn: 55756
2008-09-04 01:04:15 +00:00
Duncan Sands
4a2e0c6591 Testcase for commits 55700 and 55714.
llvm-svn: 55715
2008-09-03 19:38:41 +00:00
Devang Patel
ce2b476d8e Update test to check call instruction.
llvm-svn: 55702
2008-09-03 17:05:49 +00:00
Duncan Sands
06bd9f3885 Since onlyReadsMemory returns true if in fact
doesNotAccessMemory, check doesNotAccessMemory
first, since otherwise functions may be
marked readonly rather than readnone.

llvm-svn: 55697
2008-09-03 15:31:24 +00:00
Duncan Sands
0283a6c991 Cleanup GlobalsModRef a bit. When analysing the
callgraph, when one member of a SCC calls another
then the analysis would drop to mod-ref because
there is (usually) no function info for the callee
yet; fix this.  Teach the analysis about function
attributes, in particular the readonly attribute
(which requires being careful about globals).

llvm-svn: 55696
2008-09-03 12:55:42 +00:00
Duncan Sands
823cf841d1 Testcase for PR1678.
llvm-svn: 55695
2008-09-03 07:52:01 +00:00
Evan Cheng
942d55dd92 Add X86 target hook to implement load (even from GlobalAddress).
llvm-svn: 55693
2008-09-03 06:44:39 +00:00
Nick Lewycky
57cebeaeba Don't crash when trying to constant fold a vector with some elements that can't
be folded. Instead, fail to fold the entire vector.

We could also return a vector with some elements folded and some not. If anyone
thinks that's a better approach, please speak up!

llvm-svn: 55689
2008-09-03 05:54:33 +00:00
Devang Patel
4dfecae8fe Check iteration count.
llvm-svn: 55680
2008-09-03 00:10:56 +00:00
Devang Patel
a1e2066b1d If all IV uses are extending integer IV then change the type of IV itself, if possible.
llvm-svn: 55674
2008-09-02 22:18:08 +00:00
Devang Patel
cda9086d29 respect inline=never and inline=always notes.
llvm-svn: 55673
2008-09-02 22:16:13 +00:00
Devang Patel
631122c84b Read and write function notes.
llvm-svn: 55657
2008-09-02 21:47:13 +00:00
Dale Johannesen
1962ef8546 New testcase for targets without 64-bit atomics;
xfail old test for ppc.

llvm-svn: 55651
2008-09-02 21:19:30 +00:00
Devang Patel
468829b883 Function notes tests.
llvm-svn: 55648
2008-09-02 20:58:16 +00:00
Duncan Sands
044fcaf6b4 Turn this legalize types test on.
llvm-svn: 55605
2008-09-01 12:00:55 +00:00
Bill Wendling
297eb080b6 Revert the "XFAIL" for the rotate_ops.ll testcase. Instead, mark ISD::ROTR
instructions in CellSPU as "Expand" so that they won't be generated. I added a
"FIXME" so that this hack can be addressed and reverted once ISD::ROTR is
supported in the .td files.

llvm-svn: 55582
2008-08-31 02:59:23 +00:00
Bill Wendling
5c442aafb6 CellSPU doesn't appear to support fully the "ISD::ROTR" operation. The DAG
combiner can now generate ROTR if the backend says that it can handle it. Cell
SPU says this, but gets an error from code gen saying that it can't select
ROTR. I'm xfailing this test until this can be fixed.

llvm-svn: 55579
2008-08-31 02:32:12 +00:00
Gordon Henriksen
3324b5c3ca PR2731: C and Ocaml bindings for setTailCall and isTailCall.
Based on patch by Giorgos Korfiatis.

llvm-svn: 55570
2008-08-30 16:34:54 +00:00
Evan Cheng
b40b710766 Re-apply 55467 with fix. If copy is being replaced by remat'ed def, transfer the implicit defs onto the remat'ed instruction.
llvm-svn: 55564
2008-08-30 09:09:33 +00:00
Evan Cheng
4bc8c9652e Transform (x << (y&31)) -> (x << y). This takes advantage of the fact x86 shift instructions 2nd operand (shift count) is limited to 0 to 31 (or 63 in the x86-64 case).
llvm-svn: 55558
2008-08-30 02:03:58 +00:00
Dale Johannesen
0124a7db51 Testcases for ppc atomics.
llvm-svn: 55556
2008-08-30 00:54:31 +00:00
Evan Cheng
c1c53221c5 Swap fp comparison operands and change predicate to allow load folding (safely this time).
llvm-svn: 55553
2008-08-29 23:22:12 +00:00
Evan Cheng
79d2a8f97d xfail this.
llvm-svn: 55550
2008-08-29 22:59:13 +00:00
Chris Lattner
f24550c9d2 allow this to pass.
llvm-svn: 55540
2008-08-29 17:18:26 +00:00
Chris Lattner
b23f7dae39 Add support for parsing .ll files that have numbers in front of
nameless values, such as:

%3 = add i32 4, 2

This fixes the first half of PR2480

llvm-svn: 55539
2008-08-29 17:12:13 +00:00
Evan Cheng
cdd06ba3f4 Swap fp comparison operands and change predicate to allow load folding.
llvm-svn: 55521
2008-08-28 23:48:31 +00:00
Mon P Wang
7566974359 In lowering SELECT_CC, removed cases where we can't flip the true and false when the compare value has a NaN
llvm-svn: 55499
2008-08-28 21:04:05 +00:00
Dan Gohman
35a69c106a Optimize DAGCombiner's worklist processing. Previously it started
its work by putting all nodes in the worklist, requiring a big
dynamic allocation. Now, DAGCombiner just iterates over the AllNodes
list and maintains a worklist for nodes that are newly created or
need to be revisited. This allows the worklist to stay small in most
cases, so it can be a SmallVector.

This has the side effect of making DAGCombine not miss a folding
opportunity in alloca-align-rounding.ll.

llvm-svn: 55498
2008-08-28 21:01:56 +00:00
Dan Gohman
8f4d612996 Revert r55467; it causes regressions in UnitTests/Vector/divides,
Benchmarks/sim/sim, and others on x86-64.

llvm-svn: 55475
2008-08-28 17:22:54 +00:00
Evan Cheng
28b0b18082 If a copy isn't coalesced, but its src is defined by trivial computation. Re-materialize the src to replace the copy.
llvm-svn: 55467
2008-08-28 07:53:51 +00:00
Dale Johannesen
ae522b8463 This test crashes on non-x86 host; make SSE explicit.
Feel free to fix a better way!

llvm-svn: 55456
2008-08-28 01:51:09 +00:00
Dan Gohman
be3a88eac3 Diagnose uses of unsized types with the byval attribute in the
verifier. See PR2711 for details.

llvm-svn: 55414
2008-08-27 14:48:06 +00:00
Dan Gohman
5e5f1c9e8f Basic FastISel support for floating-point constants.
llvm-svn: 55401
2008-08-27 01:09:54 +00:00
Devang Patel
211c05f7a3 If IV is used in a int-to-float cast inside the loop then try to eliminate the cast operation.
llvm-svn: 55374
2008-08-26 17:57:54 +00:00
Chris Lattner
c5c00890e5 If an xmm register is referenced explicitly in an inline asm, make sure to
assign it to a version of the xmm register with the regclass that matches its
type.  This fixes PR2715, a bug handling some crazy xpcom case in mozilla.

llvm-svn: 55358
2008-08-26 06:19:02 +00:00
Evan Cheng
569b489cf5 Try approach to moving call address load inside of callseq_start. Now it's done during the preprocess of x86 isel. callseq_start's chain is changed to load's chain node; while load's chain is the last of callseq_start or the loads or copytoreg nodes inserted to move arguments to the right spot.
llvm-svn: 55338
2008-08-25 21:27:18 +00:00
Owen Anderson
27491bbf2c Add support for fast isel of (integer) immediate materialization pattens, and use them to support
bitcast of constants in fast isel.

llvm-svn: 55325
2008-08-25 20:20:32 +00:00
Dale Johannesen
6431c39237 Adjust grep's for new code sequence.
llvm-svn: 55320
2008-08-25 18:53:58 +00:00
Evan Cheng
2b9f879a99 Fix asm printing of MOVSDto64mr and MOV64toSDrm.
llvm-svn: 55300
2008-08-25 04:11:42 +00:00
Bill Wendling
05e1910595 Fix this test. Don't null out the file, just XFAIL it until patch can be fixed.
llvm-svn: 55296
2008-08-24 21:48:46 +00:00
Bill Wendling
5728cf59fd Temporarily reverting r55292. It's causing a bootstraping failure:
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc ... src/libiberty/make-temp-file.c -o make-temp-file.o
Assertion failed: (Node2Index[SU->NodeNum] > Node2Index[I->Dep->NodeNum] && "Wrong topological sorting"), function InitDAGTopologicalSorting, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp, line 508.
../../../../llvm-gcc.src/libiberty/hashtab.c:955: 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.
make[4]: *** [hashtab.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [multi-do] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libiberty] Error 2
make: *** [all] Error 2

llvm-svn: 55295
2008-08-24 21:45:30 +00:00
Evan Cheng
a600778748 Move callseq_start above the call address load to allow load to be folded into the call node.
llvm-svn: 55292
2008-08-24 19:19:55 +00:00
Anton Korobeynikov
496a2865db Testcase for 64bit maskmovq
llvm-svn: 55239
2008-08-23 15:53:47 +00:00
Chris Lattner
0c4ec79e1e Verify that the alignment argument to llvm.memcpy is a constant
integer, PR2318.

llvm-svn: 55228
2008-08-23 05:31:10 +00:00