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510 Commits

Author SHA1 Message Date
Lauro Ramos Venancio
1a30c18e88 [ARM] Fix code generation for: 
static __thread struct {
    int a;
    int b;
} teste = {0, 0};

llvm-svn: 43722
 2007-11-05 18:33:37 +00:00
Evan Cheng
17b0e3e1ae Skip over deleted val#'s. 
llvm-svn: 43700
 2007-11-05 06:46:45 +00:00
Evan Cheng
a406b47f14 Handle cases where a register and one of its super-register are both marked as 
defined on the same instruction. This fixes PR1767.

llvm-svn: 43699
 2007-11-05 03:11:55 +00:00
Evan Cheng
e12363dac5 Fix test case. Chris didn't do make check. :-) 
llvm-svn: 43698
 2007-11-05 03:04:26 +00:00
Evan Cheng
c68023a955 Doh. PR1187 -> PR1766. 
llvm-svn: 43693
 2007-11-05 01:00:44 +00:00
Evan Cheng
a8044084ac Fix PR1187. 
llvm-svn: 43692
 2007-11-05 00:59:10 +00:00
Chris Lattner
9329e780cd Fix PR1761 by not printing (rip) suffix when in -static mode. 
Evan, please review this.

llvm-svn: 43680
 2007-11-04 19:23:28 +00:00
Chris Lattner
296160d443 Fix PR1763 by allowing the 'q' constraint to work with 64-bit 
regs on x86-64.

llvm-svn: 43669
 2007-11-04 06:51:12 +00:00
Evan Cheng
66298e226f There are times when the coalescer would not coalesce away a copy but the copy 
can be eliminated by the allocator is the destination and source targets the
same register. The most common case is when the source and destination registers
are in different class. For example, on x86 mov32to32_ targets GR32_ which
contains a subset of the registers in GR32.

The allocator can do 2 things:
1. Set the preferred allocation for the destination of a copy to that of its source.
2. After allocation is done, change the allocation of a copy destination (if
   legal) so the copy can be eliminated.

This eliminates 443 extra moves from 403.gcc.

llvm-svn: 43662
 2007-11-03 07:20:12 +00:00
Evan Cheng
0442889b18 Add run line. 
llvm-svn: 43645
 2007-11-02 17:36:58 +00:00
Evan Cheng
f851163c53 One more extract_subreg coalescing bug. 
llvm-svn: 43644
 2007-11-02 17:35:08 +00:00
Evan Cheng
e453ff4913 Missing a getNumOperands check. 
llvm-svn: 43630
 2007-11-02 01:26:22 +00:00
Dale Johannesen
440f9abab4 Test that expand_vector_elt(v2i64) works in 32-bit mode. 
llvm-svn: 43598
 2007-11-01 02:38:24 +00:00
Evan Cheng
c2dbfee43f It's not safe to tell SplitCriticalEdge to merge identical edges. It may delete the phi instruction that's being processed. 
llvm-svn: 43524
 2007-10-30 22:27:26 +00:00
Evan Cheng
b024c4c81d - Bug fixes. 
- Allow icmp rewrite using an iv / stride of a smaller integer type.

llvm-svn: 43480
 2007-10-29 22:07:18 +00:00
Dan Gohman
ae95d72a52 Fix a DAGCombiner abort on a bitcast from a scalar to a vector. 
llvm-svn: 43470
 2007-10-29 20:44:42 +00:00
Evan Cheng
e106e2f142 Enable more fold (sext (load x)) -> (sext (truncate (sextload x))) 
transformation. Previously, it's restricted by ensuring the number of load uses
is one. Now the restriction is loosened up by allowing setcc uses to be
"extended" (e.g. setcc x, c, eq -> setcc sext(x), sext(c), eq).

llvm-svn: 43465
 2007-10-29 19:58:20 +00:00
Chris Lattner
5e99fd8c0d Add support for the x86-64 'q' regigster modifier, and add support for the 
b/h/w/k/q inline asm memory modifiers, which are just ignored.  This fixes
PR1748 and CodeGen/X86/2007-10-28-inlineasm-q-modifier.ll

llvm-svn: 43430
 2007-10-29 03:09:07 +00:00
Bill Wendling
b0bfd69684 On second thought. Remove this as it should never be generated in the first 
place.

llvm-svn: 43400
 2007-10-26 20:34:37 +00:00
Bill Wendling
6d15b32c15 - Remove the hacky code that forces a memcpy. Alignment is taken care of in the 
FE.
- Explicitly pass in the alignment of the load & store.
- XFAIL 2007-10-23-UnalignedMemcpy.ll because llc has a bug that crashes on
  unaligned pointers.

llvm-svn: 43398
 2007-10-26 20:24:42 +00:00
Evan Cheng
7f3d02471d Loosen up iv reuse to allow reuse of the same stride but a larger type when truncating from the larger type to smaller type is free. 
e.g.
Turns this loop:
LBB1_1: # entry.bb_crit_edge
        xorl    %ecx, %ecx
        xorw    %dx, %dx
        movw    %dx, %si
LBB1_2: # bb
        movl    L_X$non_lazy_ptr, %edi
        movw    %si, (%edi)
        movl    L_Y$non_lazy_ptr, %edi
        movw    %dx, (%edi)
		addw    $4, %dx
		incw    %si
		incl    %ecx
		cmpl    %eax, %ecx
		jne     LBB1_2  # bb
	
into

LBB1_1: # entry.bb_crit_edge
        xorl    %ecx, %ecx
        xorw    %dx, %dx
LBB1_2: # bb
        movl    L_X$non_lazy_ptr, %esi
        movw    %cx, (%esi)
        movl    L_Y$non_lazy_ptr, %esi
        movw    %dx, (%esi)
        addw    $4, %dx
		incl    %ecx
        cmpl    %eax, %ecx
        jne     LBB1_2  # bb

llvm-svn: 43375
 2007-10-26 01:56:11 +00:00
Evan Cheng
133694db06 If a loop termination compare instruction is the only use of its stride, 
and the compaison is against a constant value, try eliminate the stride
by moving the compare instruction to another stride and change its
constant operand accordingly. e.g.

loop:
...
v1 = v1 + 3
v2 = v2 + 1
if (v2 < 10) goto loop
=>
loop:
...
v1 = v1 + 3
if (v1 < 30) goto loop

llvm-svn: 43336
 2007-10-25 09:11:16 +00:00
Dale Johannesen
52bbe1b171 This was failing on Darwin, which defaults to PIC; 
no lea was generated.  I think this follows the intent.

llvm-svn: 43312
 2007-10-24 20:58:14 +00:00
Bill Wendling
e3b859298a If there's an unaligned memcpy to/from the stack, don't lower it. Just call the 
memcpy library function instead.

llvm-svn: 43270
 2007-10-23 23:32:40 +00:00
Evan Cheng
ec271b104c Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64. 
llvm-svn: 43248
 2007-10-23 06:42:42 +00:00
Evan Cheng
1f2dd35898 Fix memcpy lowering when addresses are 4-byte aligned but size is not multiple of 4. 
llvm-svn: 43234
 2007-10-22 22:11:27 +00:00
Dan Gohman
e0c3d9f338 Strength reduction improvements. 
- Avoid attempting stride-reuse in the case that there are users that
   aren't addresses. In that case, there will be places where the
   multiplications won't be folded away, so it's better to try to
   strength-reduce them.

 - Several SSE intrinsics have operands that strength-reduction can
   treat as addresses. The previous item makes this more visible, as
   any non-address use of an IV can inhibit stride-reuse.

 - Make ValidStride aware of whether there's likely to be a base
   register in the address computation. This prevents it from thinking
   that things like stride 9 are valid on x86 when the base register is
   already occupied.

Also, XFAIL the 2007-08-10-LEA16Use32.ll test; the new logic to avoid
stride-reuse elimintes the LEA in the loop, so the test is no longer
testing what it was intended to test.

llvm-svn: 43231
 2007-10-22 20:40:42 +00:00
Dan Gohman
bf474959a3 Fix the folding of multiplication into addresses on x86, which was broken 
by the recent {U,S}MUL_LOHI changes.

llvm-svn: 43230
 2007-10-22 20:22:24 +00:00
Evan Cheng
bdbed66333 Use ptr type in the immediate field of a BxA instruction so we don't end up selecting 32-bit call instruction for ppc64. 
llvm-svn: 43228
 2007-10-22 19:46:19 +00:00
Evan Cheng
f52a6fc50c New test case. 
llvm-svn: 43193
 2007-10-19 22:05:00 +00:00
Rafael Espindola
813a0b1d29 Test byval with a 8 bit aligned struct 
llvm-svn: 43173
 2007-10-19 11:29:21 +00:00
Rafael Espindola
846c19dd70 Add support for byval function whose argument is not 32 bit aligned. 
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset.  I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)

llvm-svn: 43172
 2007-10-19 10:41:11 +00:00
Bill Wendling
070aca5d25 Pointer arithmetic should be done with the index the same size as the pointer. 
llvm-svn: 43120
 2007-10-18 08:32:37 +00:00
Evan Cheng
e6a41c066a Really fix PR1734. Carefully track which register uses are sub-register uses by 
traversing inverse register coalescing map.

llvm-svn: 43118
 2007-10-18 07:49:59 +00:00
Dan Gohman
8f518b9875 Add support for ISD::SELECT in SplitVectorOp. 
llvm-svn: 43072
 2007-10-17 14:48:28 +00:00
Evan Cheng
7587d1bd19 Yet another test case for extract_subreg coalescing crash. 
llvm-svn: 43063
 2007-10-17 02:15:06 +00:00
Evan Cheng
fab7ca89d5 Fix PR1734. 
llvm-svn: 43035
 2007-10-16 19:29:47 +00:00
Dale Johannesen
e43b960d3b New test for svn rev 43033, radar 5538745. 
llvm-svn: 43034
 2007-10-16 18:10:14 +00:00
Chris Lattner
1366653e2f Fix a bug handling frame references in ppc inline asm when the frame offset 
doesn't fit into 16 bits.

llvm-svn: 43032
 2007-10-16 18:00:18 +00:00
Evan Cheng
7bcfd8f880 LowerFP_TO_SINT must not create a stack object if it's not needed. 
llvm-svn: 43004
 2007-10-15 20:11:21 +00:00
Dan Gohman
e862243e1c Reapply the fix in 42908 for this file. This changes the function names 
from "test" to "foo" so that they don't match the grep -i ST.

llvm-svn: 43001
 2007-10-15 19:22:17 +00:00
Evan Cheng
a5abba65b6 Fix PR1729: watch out for val# with no def. 
llvm-svn: 42996
 2007-10-15 18:33:50 +00:00
Tanya Lattner
9486b19066 Fix run line. 
llvm-svn: 42990
 2007-10-15 16:35:13 +00:00
Evan Cheng
d8771e915c New test case. 
llvm-svn: 42963
 2007-10-14 10:15:03 +00:00
Evan Cheng
cdf3609130 Revert 42908 for now. 
llvm-svn: 42960
 2007-10-14 05:57:21 +00:00
Chris Lattner
2ce649ebea new testcase 
llvm-svn: 42953
 2007-10-13 06:56:18 +00:00
Evan Cheng
f86204baf4 Fix test case. 
llvm-svn: 42949
 2007-10-13 03:14:06 +00:00
Evan Cheng
54bec86754 New tests. 
llvm-svn: 42948
 2007-10-13 03:10:54 +00:00
Dan Gohman
e0ad9ea7cd Fix this test to not depend on the assembly output containing something 
that includes the string "st". This probably fixes the regression on
Darwin.

llvm-svn: 42932
 2007-10-12 20:42:14 +00:00
Dan Gohman
dc35bd79ca Change the names used for internal labels to use the current 
function symbol name instead of a codegen-assigned function
number.

Thanks Evan! :-)

llvm-svn: 42908
 2007-10-12 14:53:36 +00:00