Commit Graph

41125 Commits

Author SHA1 Message Date
Dale Johannesen
59e577f73c Add hooks for other intrinsics to get low-precision expansions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55845 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 18:38:42 +00:00
Dan Gohman
c39f4dba1c X86FastISel support for shifts and conditional moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55844 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 18:30:08 +00:00
Dan Gohman
40b189e4e2 FastISel support for ConstantExprs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55843 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 18:18:20 +00:00
Dan Gohman
be0034e3c2 Revert r55817. It broke PIC. FastISel will need to find a different
approach here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 18:13:01 +00:00
Evan Cheng
e2471a9169 If SSE2 is available, x86 should pass first 3 f32/f64 arguments in XMM registers for fastcc calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55840 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 17:24:07 +00:00
Evan Cheng
c89d2feb35 Add a variant of AnalyzeCallOperands that can be used by fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 16:59:26 +00:00
Duncan Sands
6f0a7687ab Use removeAllCalledFunctions rather than removing
edges one by one by hand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 14:56:53 +00:00
Duncan Sands
a7212e5826 Remove trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55835 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 12:37:12 +00:00
Duncan Sands
e4a48c7581 Strip trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55834 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 12:31:56 +00:00
Duncan Sands
cae62e3498 Make this pass return that it made a change if
it modifies a functions attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 09:08:37 +00:00
Duncan Sands
1c11debc94 "Fix" PR2762. The testcase now crashes codegen
elsewhere due to a missing pattern for
v2f64 = sint_to_fp v2i32.  That is PR2687.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 08:13:35 +00:00
Dan Gohman
3dd168d445 Fix a search+replace-o.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55824 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:58:21 +00:00
Dale Johannesen
601d3c0145 Add -flimit-float-precision to enable some faster,
but less accurate (non-IEEE) code sequences for
certain math library functions.  Add the first of
several such expansions.  Don't worry, if you don't
turn it on it won't affect you.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55823 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:48:15 +00:00
Dan Gohman
4f22bb0676 Check a comparion's operand type for legality before
expanding its operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55820 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:33:56 +00:00
Dan Gohman
f52550b50e Fix X86FastISel code for comparisons and conditional branches
to check the result of getRegForValue before using it, and
to check for illegal operand types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55819 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:15:35 +00:00
Dan Gohman
087c8507e5 FastISel support for unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55818 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:08:41 +00:00
Dan Gohman
c7f4a8a80c In FastISel mode, the scheduler may be invoked multiple times
in the same block. Fix the entry-block handling to only run at
at the beginning of the entry block, and not any other times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55817 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:07:48 +00:00
Dan Gohman
d89ae99ec8 X86FastISel support for conditional branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55816 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:06:14 +00:00
Owen Anderson
95267a1e67 Add initial support for selecting constant materializations that require constant
pool loads on X86 in fast isel.  This isn't actually used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55814 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 00:06:23 +00:00
Dan Gohman
6e3f05f5ce X86FastISel support for ICmpInst and FCmpInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55811 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 23:26:51 +00:00
Devang Patel
cdc0669c73 update.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 23:10:26 +00:00
Devang Patel
f8b94812a1 Document function notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 23:05:13 +00:00
Evan Cheng
4a03775777 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 22:59:58 +00:00
Devang Patel
deafefabae A loop may be unswitched multiple times. Reconstruct dom info. at the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55806 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 22:43:59 +00:00
Dale Johannesen
fe89669b77 Adjust tests to expect new math intrinsics to be
emitted only when errno is not in use.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55797 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 21:24:28 +00:00
Devang Patel
db10033d7c If function notes say optimize for size, then adjust alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 21:03:41 +00:00
Dan Gohman
5b2298005d Add an include of SmallSet.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 20:49:27 +00:00
Devang Patel
027bb92541 Initialize loop data first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 20:36:36 +00:00
Duncan Sands
f423abc289 Neaten this up a bit. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55789 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 19:16:20 +00:00
Devang Patel
10b359ccb6 Do not unswitch if the function notes say we're optimizing this function for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 18:55:13 +00:00
Andrew Lenharth
eb50479714 try to seperate the mechanism into something others can use
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 18:51:26 +00:00
Dale Johannesen
928e865d95 Adjust libcalls tests to expect intrinsic for exp2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55784 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 18:44:20 +00:00
Dale Johannesen
53bfbbccbf Add intrinsic forms of pow and exp2. The non-intrinsic
forms remain to handle older IR files, but will go away soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55781 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 18:30:46 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 17:05:41 +00:00
Owen Anderson
79924eb6f5 Fix the ordering of operands to the store (inverted relative to LLVM IR), and fix the testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 16:48:33 +00:00
Dan Gohman
6448d91ad1 Clean up uses of TargetLowering::getTargetMachine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55769 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 15:39:15 +00:00
Andrew Lenharth
ef7803217a cleanup as per Duncan's review
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55766 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 14:34:22 +00:00
Owen Anderson
a3971dfbfe Add a first attempt at implementing stores for X86 fast isel using target hooks.
Dan or Evan, please review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55764 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 07:08:58 +00:00
Evan Cheng
373d50af1d Load from GV stub should be locally CSE'd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55763 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 06:18:33 +00:00
Evan Cheng
90960280ee Fix an overly strict assertion. Source register of a copy may not be killed, it may be killed by an implicit super-register use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 05:43:55 +00:00
Evan Cheng
c2feb5c262 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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55756 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 01:04:15 +00:00
Dale Johannesen
7794f2a3a7 Add intrinsics for log, log2, log10, exp, exp2.
No functional change (and no FE change to generate them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55753 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 00:47:13 +00:00
Dan Gohman
104e4ce162 Do trivial local CSE for constants and other non-Instruction values
in FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 23:32:19 +00:00
Dan Gohman
2a7c671e2e Put RegsForValue in the llvm namespace to avoid warnings about
classes in the llvm namespace having members with types from
anonymous namespaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 23:18:39 +00:00
Dan Gohman
3df24e667f Create HandlePHINodesInSuccessorBlocksFast, a version of
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 23:12:08 +00:00
Devang Patel
7bbb4339f9 Update inline threshold for current function if the notes say, optimize for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55745 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 23:06:09 +00:00
Owen Anderson
0c7f91cf84 Fix a bug that prevented PRE from applying in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55744 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 23:06:07 +00:00
Devang Patel
72ab076e67 Avoid extra comma.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55742 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 22:55:40 +00:00
Devang Patel
52e89dd4e2 Parse and print opt_size note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55740 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 22:10:21 +00:00
Andrew Lenharth
cf996d4b56 Initial version of a Partial Specialization IPO pass. It triggers a couple hundred times on 176.gcc. I don't know the performance impact yet, the heuristic is quite simple still.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 21:00:28 +00:00