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Commit Graph

18206 Commits

Author SHA1 Message Date
Devang Patel
cdea453adb Preserve canonical loop form.
llvm-svn: 35829
2007-04-09 20:19:46 +00:00
Jeff Cohen
f489bef844 When the number of elements is zero, don't malloc 32GB on 64-bit systems.
Fixes unexpected failures on FreeBSD/amd64 of:
  CFrontend/2005-09-24-BitFieldCrash.c:
  CFrontend/2007-02-04-EmptyStruct.c:
  CFrontend/2007-03-26-ZeroWidthBitfield.c:
  CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll:

llvm-svn: 35828
2007-04-09 19:26:30 +00:00
Reid Spencer
60da7b09e7 Don't link against System or Support library. These things will already
be in the opt tool.

llvm-svn: 35827
2007-04-09 19:17:47 +00:00
Devang Patel
9263a797b3 Do not create new pre-header. Reuse original pre-header.
llvm-svn: 35825
2007-04-09 19:04:21 +00:00
Reid Spencer
93a57ef458 For PR1146:
* Add ParamAttrs to InvokeInst class too.
* Make sure all initializes of ParamAttrs in CallInst and InvokeInst are 0
* Destruct the ParamAttrs in Call/Invoke destructors to avoid memory
  leaks. This will change when ParamAttrsList is uniquified but needs to
  be correct until then.

llvm-svn: 35824
2007-04-09 18:00:57 +00:00
Reid Spencer
1acc089771 Remove a memory leak, until ParamAttrsList is uniqued.
llvm-svn: 35823
2007-04-09 17:20:18 +00:00
Devang Patel
e038420dc6 Simpler for() loops.
llvm-svn: 35822
2007-04-09 17:09:13 +00:00
Devang Patel
dd269ce747 Fix future bug. Of course, Chris spotted this.
Handle Argument or Undef as an incoming PHI value.

llvm-svn: 35821
2007-04-09 16:41:46 +00:00
Devang Patel
ba5018aaff More cosmetic changes.
llvm-svn: 35820
2007-04-09 16:21:29 +00:00
Devang Patel
f66f3dd962 Only cosmetic changes. Zero functionality Change.
llvm-svn: 35819
2007-04-09 16:11:48 +00:00
Reid Spencer
d2380cfb76 For PR1146:
* Add ParamAttrList pointers to Function and CallInst.
* Move the implementation of ParamAttrList from Type.cpp to Function.cpp

llvm-svn: 35818
2007-04-09 15:01:12 +00:00
Jeff Cohen
b3d61e6c05 Unbreak VC++ build.
llvm-svn: 35817
2007-04-09 14:32:59 +00:00
Anton Korobeynikov
6ee97ee42a Next stage into switch lowering refactoring
1. Fix some bugs in the jump table lowering threshold
2. Implement much better metric for optimal pivot selection
3. Tune thresholds for different lowering methods
4. Implement shift-and trick for lowering small (<machine word
length) cases with few destinations. Good testcase will follow.

llvm-svn: 35816
2007-04-09 12:31:58 +00:00
Chris Lattner
730f5588be Convert ImmediateDominators::DFSPass from being recursive to being iterative.
llvm-svn: 35815
2007-04-09 06:44:42 +00:00
Reid Spencer
2660b8dccb For PR1146:
Adapt handling of parameter attributes to use the new ParamAttrsList class.

llvm-svn: 35814
2007-04-09 06:17:21 +00:00
Reid Spencer
3ffd70d6e4 Regenerate
llvm-svn: 35813
2007-04-09 06:16:21 +00:00
Reid Spencer
b43eb600c2 For PR1146:
Use ParamAttrsList for writing parameter attributes. Since they are sparse
now, we also write them sparsely (saves a few bytes). Unfortunately, this
is a bytecode file format change.

llvm-svn: 35811
2007-04-09 06:14:31 +00:00
Reid Spencer
1f674acbdf For PR1146:
Simplify construction of FunctionType to use default arguments.

llvm-svn: 35810
2007-04-09 06:12:07 +00:00
Reid Spencer
a2b16b4ee5 For PR1146:
Parameter attributes can now be defaulted for intrinsics.

llvm-svn: 35809
2007-04-09 06:11:23 +00:00
Reid Spencer
3d414b473d For PR1146:
Adjust writing of parameter attributes to use ParamAttrList class.

llvm-svn: 35808
2007-04-09 06:10:42 +00:00
Chris Lattner
884f49c47e minor cleanups
llvm-svn: 35807
2007-04-09 06:10:06 +00:00
Reid Spencer
6bc0205a2a For PR1146:
Move parameter attributes functionality to ParamAttrsList class.

llvm-svn: 35806
2007-04-09 06:07:52 +00:00
Chris Lattner
de148c7887 move a bunch of register constraints from being handled by
getRegClassForInlineAsmConstraint to being handled by
getRegForInlineAsmConstraint.  This allows us to let the llvm register allocator
allocate, which gives us better code.  For example, X86/2007-01-29-InlineAsm-ir.ll
used to compile to:

_run_init_process:
        subl $4, %esp
        movl %ebx, (%esp)
        xorl %ebx, %ebx
        movl $11, %eax
        movl %ebx, %ecx
        movl %ebx, %edx
        # InlineAsm Start
        push %ebx ; movl %ebx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

Now we get:
_run_init_process:
        xorl %ecx, %ecx
        movl $11, %eax
        movl %ecx, %edx
        # InlineAsm Start
        push %ebx ; movl %ecx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

llvm-svn: 35804
2007-04-09 05:49:22 +00:00
Chris Lattner
b940a717ac implement support for CodeGen/X86/inline-asm-x-scalar.ll:test3 - i32/i64 values
used with x constraints.

llvm-svn: 35803
2007-04-09 05:31:48 +00:00
Chris Lattner
13a530ec7f implement CodeGen/X86/inline-asm-x-scalar.ll:test3
llvm-svn: 35802
2007-04-09 05:31:20 +00:00
Chris Lattner
c360f69afe add some assertions
llvm-svn: 35800
2007-04-09 05:23:13 +00:00
Chris Lattner
e2d3bf8ecf implement CodeGen/X86/inline-asm-x-scalar.ll
llvm-svn: 35799
2007-04-09 05:11:28 +00:00
Owen Anderson
e4c29f0b01 Move isReachableFromEntry out of line to avoid an unnecessary #include
llvm-svn: 35797
2007-04-09 04:07:36 +00:00
Chris Lattner
b3c4c64197 Fix a bug that caused alignment information to occasionally get stripped off
of an allocation instruction when writing to bytecode.

llvm-svn: 35796
2007-04-09 03:37:36 +00:00
Reid Spencer
4ede44609e Regenerate
llvm-svn: 35795
2007-04-09 01:56:05 +00:00
Reid Spencer
93d41cc941 Drop the implementation keyword.
llvm-svn: 35794
2007-04-09 01:55:42 +00:00
Chris Lattner
218d43af10 Fix PR1304 and Transforms/InstCombine/2007-04-08-SingleEltVectorCrash.ll
llvm-svn: 35792
2007-04-09 01:37:55 +00:00
Chris Lattner
958d804293 Fix a bug introduced with my previous patch, where it didn't correctly handle
instructions which replace themselves when FI's are rewritten (common on ppc).
This fixes CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll

llvm-svn: 35789
2007-04-09 01:19:33 +00:00
Chris Lattner
b3d105a4f9 Eliminate useless insertelement instructions. This implements
Transforms/InstCombine/vec_insertelt.ll and fixes PR1286.

We now compile the code from that bug into:

_foo:
        movl 4(%esp), %eax
        movdqa (%eax), %xmm0
        movl 8(%esp), %ecx
        psllw (%ecx), %xmm0
        movdqa %xmm0, (%eax)
        ret

instead of:

_foo:
        subl $4, %esp
        movl %ebp, (%esp)
        movl %esp, %ebp
        movl 12(%ebp), %eax
        movdqa (%eax), %xmm0
        #IMPLICIT_DEF %eax
        pinsrw $2, %eax, %xmm0
        xorl %ecx, %ecx
        pinsrw $3, %ecx, %xmm0
        pinsrw $4, %eax, %xmm0
        pinsrw $5, %ecx, %xmm0
        pinsrw $6, %eax, %xmm0
        pinsrw $7, %ecx, %xmm0
        movl 8(%ebp), %eax
        movdqa (%eax), %xmm1
        psllw %xmm0, %xmm1
        movdqa %xmm1, (%eax)
        movl %ebp, %esp
        popl %ebp
        ret

woo :)

llvm-svn: 35788
2007-04-09 01:11:16 +00:00
Owen Anderson
f9a432a613 Cleanup some from my DomSet-removal changes. Add a new
isReachableFromEntry
test to ETForest to factor a common test out of code.

llvm-svn: 35786
2007-04-09 00:52:49 +00:00
Chris Lattner
1a746d3b8e Fix CodeGen/Generic/2007-04-08-MultipleFrameIndices.ll and PR1308:
some instructions can have multiple frame indices in them.  If this happens,
rewrite all of them.

llvm-svn: 35785
2007-04-09 00:46:10 +00:00
Chris Lattner
5f8b0c2acc Fix PR1316
llvm-svn: 35783
2007-04-09 00:33:58 +00:00
Reid Spencer
aedaf87e5e No functional change, this is just easier to read and debug.
llvm-svn: 35782
2007-04-08 23:58:41 +00:00
Chris Lattner
f9506a185b Fix for CodeGen/X86/2007-04-08-InlineAsmCrash.ll and PR1314
llvm-svn: 35779
2007-04-08 22:23:26 +00:00
Owen Anderson
4b323657b9 Remove DomSet completely. This concludes work on PR1171.
llvm-svn: 35775
2007-04-08 21:30:05 +00:00
Reid Spencer
82c0c6353b Make sure temporary data is not used past its life span.
llvm-svn: 35773
2007-04-08 20:10:14 +00:00
Chris Lattner
4ed32d0891 Fix a typo that broke SimplifyLibCalls/SPrintF.ll (pr1315)
llvm-svn: 35768
2007-04-08 18:11:26 +00:00
Chris Lattner
1a1b798eb5 reenable this xform, whoops :)
llvm-svn: 35765
2007-04-08 08:01:49 +00:00
Chris Lattner
1760b42378 Fix regression on Instcombine/apint-or2.ll
llvm-svn: 35763
2007-04-08 07:55:22 +00:00
Chris Lattner
d435e0bfd2 Generalize the code that handles (A&B)|(A&C) to work where B/C are not constants.
Add a new xform to simplify (A&B)|(~A&C).  THis implements InstCombine/or2.ll:test1

llvm-svn: 35760
2007-04-08 07:47:01 +00:00
Chris Lattner
34464bdf2b implement a fixme: move optimizations for fwrite out of fputs into a new
fwrite optimizer.

llvm-svn: 35758
2007-04-08 07:00:35 +00:00
Nick Lewycky
71592d1ef2 Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson.
llvm-svn: 35757
2007-04-08 01:04:30 +00:00
Nick Lewycky
26652f5681 Don't crash when encountering a BasicBlock that hasn't been registered yet.
llvm-svn: 35756
2007-04-08 01:02:12 +00:00
Chris Lattner
16fe035aa4 Significantly simplify the clients of GetConstantStringInfo, by having it
just return the string itself.

llvm-svn: 35755
2007-04-07 21:58:02 +00:00
Chris Lattner
5b3be230d4 Fix problems in the sprintf optimizer
llvm-svn: 35754
2007-04-07 21:17:51 +00:00