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555 Commits

Author SHA1 Message Date
Evan Cheng
13d79ab67a Fix PR1187. 
llvm-svn: 43692
 2007-11-05 00:59:10 +00:00
Chris Lattner
8fac63c8b5 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
67cd357fb8 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
1771f6da9c 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
8d473f667d Add run line. 
llvm-svn: 43645
 2007-11-02 17:36:58 +00:00
Evan Cheng
65a07e73e2 One more extract_subreg coalescing bug. 
llvm-svn: 43644
 2007-11-02 17:35:08 +00:00
Evan Cheng
b50cc64eb0 Missing a getNumOperands check. 
llvm-svn: 43630
 2007-11-02 01:26:22 +00:00
Dale Johannesen
c125d9b4e8 Test that expand_vector_elt(v2i64) works in 32-bit mode. 
llvm-svn: 43598
 2007-11-01 02:38:24 +00:00
Evan Cheng
5e058e94b5 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
633cd3e84d - 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
02b8beff5f 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
5fe81cf64e 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
1503362624 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
18b6321020 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
8d329ff809 - 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
53696b7e9f 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
66cbf54030 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
402c11966a 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
a420d660c8 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
0590c75f18 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
252d9ddb4d 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
df1f166e4a 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
76e104c8ad 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
85eb733eff 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
2d53c3f15e New test case. 
llvm-svn: 43193
 2007-10-19 22:05:00 +00:00
Rafael Espindola
2b5b200b9f Test byval with a 8 bit aligned struct 
llvm-svn: 43173
 2007-10-19 11:29:21 +00:00
Rafael Espindola
d8d4372845 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
32c9cd9e94 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
f6d1c7be14 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
2903f7fc26 Add support for ISD::SELECT in SplitVectorOp. 
llvm-svn: 43072
 2007-10-17 14:48:28 +00:00
Evan Cheng
524c0e6c3d Yet another test case for extract_subreg coalescing crash. 
llvm-svn: 43063
 2007-10-17 02:15:06 +00:00
Evan Cheng
09fa6ed483 Fix PR1734. 
llvm-svn: 43035
 2007-10-16 19:29:47 +00:00
Dale Johannesen
dd254c4efa New test for svn rev 43033, radar 5538745. 
llvm-svn: 43034
 2007-10-16 18:10:14 +00:00
Chris Lattner
45d9c7aa07 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
f5bcd3d737 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
2dc6099def 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
43887d3714 Fix PR1729: watch out for val# with no def. 
llvm-svn: 42996
 2007-10-15 18:33:50 +00:00
Tanya Lattner
3a64752342 Fix run line. 
llvm-svn: 42990
 2007-10-15 16:35:13 +00:00
Evan Cheng
850c8739dc New test case. 
llvm-svn: 42963
 2007-10-14 10:15:03 +00:00
Evan Cheng
33df6a6bed Revert 42908 for now. 
llvm-svn: 42960
 2007-10-14 05:57:21 +00:00
Chris Lattner
a7666b08ad new testcase 
llvm-svn: 42953
 2007-10-13 06:56:18 +00:00
Evan Cheng
f5ed18f7d3 Fix test case. 
llvm-svn: 42949
 2007-10-13 03:14:06 +00:00
Evan Cheng
6101e4ffdf New tests. 
llvm-svn: 42948
 2007-10-13 03:10:54 +00:00
Dan Gohman
c96f2809ca 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
a75e4a62e6 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
Evan Cheng
51791564b0 Doh. 
llvm-svn: 42901
 2007-10-12 09:10:27 +00:00
Evan Cheng
947b4a6c3d EXTRACT_SUBREG test case. 
llvm-svn: 42900
 2007-10-12 09:03:31 +00:00
Arnold Schwaighofer
f1e49dd41d Added missing -march=x86 flag. 
llvm-svn: 42893
 2007-10-12 07:49:48 +00:00
Dan Gohman
ab5c3ed0d1 Add intrinsics for sin, cos, and pow. These use llvm_anyfloat_ty, and so 
may be overloaded with vector types. And add a testcase for codegen for
these.

llvm-svn: 42885
 2007-10-12 00:01:22 +00:00
Dan Gohman
9a70be46f1 Add an explicit target triple to make this test behave as expected on 
non-Apple hosts. And use the count script instead of wc + grep.

llvm-svn: 42878
 2007-10-11 23:04:36 +00:00
Arnold Schwaighofer
d47210011e Added tail call optimization to the x86 back end. It can be 
enabled by passing -tailcallopt to llc.  The optimization is
performed if the following conditions are satisfied:
* caller/callee are fastcc
* elf/pic is disabled OR
  elf/pic enabled + callee is in module + callee has
  visibility protected or hidden

llvm-svn: 42870
 2007-10-11 19:40:01 +00:00
Dan Gohman
708e76e663 These two tests now require only two multiply instructions, 
instead of four.

llvm-svn: 42784
 2007-10-09 15:39:37 +00:00
Evan Cheng
25b65542d9 Update test. 
llvm-svn: 42775
 2007-10-08 22:20:32 +00:00
Dan Gohman
9da3bddf43 These two tests now require only three multiply instructions, 
instead of four.

llvm-svn: 42765
 2007-10-08 20:48:12 +00:00
Dale Johannesen
b600202c68 Make test work on non-x86 hosts. 
llvm-svn: 42671
 2007-10-06 01:22:39 +00:00
Evan Cheng
0a642eaa62 Test case for 3-address conversion. 
llvm-svn: 42664
 2007-10-05 23:33:09 +00:00
Evan Cheng
dc467c6323 Enable convertToThreeAddress for X86 by default. 
llvm-svn: 42655
 2007-10-05 22:31:10 +00:00
Dale Johannesen
c7b51b678d First round of ppc long double. call/return and 
basic arithmetic works.
Rename RTLIB long double functions to distinguish
different flavors of long double; the lib functions
have different names, alas.

llvm-svn: 42644
 2007-10-05 20:04:43 +00:00
Evan Cheng
6fd2606ff5 New test case. 
llvm-svn: 42628
 2007-10-05 01:44:22 +00:00
Evan Cheng
1d3c836933 -pre-RA-sched=none, simple, simple-noitin are gone. 
llvm-svn: 42505
 2007-10-01 22:17:20 +00:00
Dan Gohman
02f80006f8 Teach SplitVectorOp how to split INSERT_VECTOR_ELT. 
llvm-svn: 42457
 2007-09-28 23:53:40 +00:00
Rafael Espindola
01b306e575 Refactor the memcpy lowering for the x86 target. 
The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

llvm-svn: 42433
 2007-09-28 12:53:01 +00:00
Dale Johannesen
e61886cee4 Add sqrt and powi intrinsics for long double. 
llvm-svn: 42423
 2007-09-28 01:08:20 +00:00
Dale Johannesen
57b6470e8b Modernize fabs.ll, add long double. Add tests 
for direct codegen of fsin/fcos.

llvm-svn: 42369
 2007-09-26 21:12:10 +00:00
Dan Gohman
1bb346f9f1 When both x/y and x%y are needed (x and y both scalar integer), compute 
both results with a single div or idiv instruction. This uses new X86ISD
nodes for DIV and IDIV which are introduced during the legalize phase
so that the SelectionDAG's CSE can automatically eliminate redundant
computations.

llvm-svn: 42308
 2007-09-25 18:23:27 +00:00
Dale Johannesen
fe773726a9 Some tests for APFloat conversions. 
llvm-svn: 42303
 2007-09-25 17:50:55 +00:00
Evan Cheng
dab211c87b Forgot to check in the changes. Fix test case so it doesn't break with any scheduling changes. 
llvm-svn: 42302
 2007-09-25 17:47:38 +00:00
Dan Gohman
dd675a5064 Use the correct result value type instead of using getValueType(0) 
in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.

llvm-svn: 42264
 2007-09-24 15:54:53 +00:00
Dan Gohman
39313e0fa3 Fix a typo in a comment. 
llvm-svn: 42263
 2007-09-24 15:50:11 +00:00
Dale Johannesen
a928e8b8b2 Implementation of +sse -sse2 has changed; add 
-sse to preserve intent of this test.

llvm-svn: 42247
 2007-09-23 14:58:14 +00:00
Rafael Espindola
11ee0898b9 Don't add a default STACK_ALIGN (use the generic ABI alignment) 
Implement calls to functions with byval arguments on X86

llvm-svn: 42192
 2007-09-21 15:50:22 +00:00
Evan Cheng
66bccf335b Disable if-conversion for this test. 
llvm-svn: 42170
 2007-09-20 18:06:22 +00:00
Evan Cheng
ae2dbcb25f -enable-arm-if-conversion is gone. 
llvm-svn: 42169
 2007-09-20 18:03:23 +00:00
Dan Gohman
eb622df2ef Fix several more entries in the x86 reload/remat folding tables. 
llvm-svn: 42162
 2007-09-20 14:17:21 +00:00
Evan Cheng
28a7839505 Clean up. 
llvm-svn: 42112
 2007-09-18 22:56:31 +00:00
Evan Cheng
2716b97b13 Fix a bogus splat xform: 
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>

llvm-svn: 42111
 2007-09-18 21:54:37 +00:00
Bill Wendling
803e0d9970 Objective-C was generating EH frame info like this: 
"_-[NSString(local) isNullOrNil]".eh = 0
        .no_dead_strip  "_-[NSString(local) isNullOrNil]".eh

The ".eh" should be inside the quotes.

llvm-svn: 42074
 2007-09-18 01:47:22 +00:00
Gordon Henriksen
fa3a5915b1 Fix for PR1633: Verifier doesn't fully verify GC intrinsics 
LLVM now enforces the following prototypes for the write barriers:

<ty>* @llvm.gcread(<ty2>*, <ty>**)
void @llvm.gcwrite(<ty>*, <ty2>*, <ty>**)

And for @llvm.gcroot, the first stack slot is verified to be an alloca or a 
bitcast of an alloca.

Fixes test/CodeGen/Generic/GC/lower_gcroot.ll, which violated these.

llvm-svn: 42051
 2007-09-17 20:30:04 +00:00
Dan Gohman
1aeaeec570 Emit integer x<1 as x<=0, as comparisons with zero (now includeing 
64-bit) can use test instead of cmp with an immediate.

llvm-svn: 42026
 2007-09-17 14:49:27 +00:00
Dan Gohman
b9449c9118 Use "test reg,reg" in place of "cmp reg,0" for 64-bit operands. This was 
previously only done for 32-bit and smaller operands.

llvm-svn: 42024
 2007-09-17 14:35:24 +00:00
Dan Gohman
27ab14af9b Add explicit triples to avoid default behavior that varies by host. 
llvm-svn: 41959
 2007-09-14 20:37:18 +00:00
Rafael Espindola
5d8b225881 Add support for functions with byval arguments on x86 
llvm-svn: 41953
 2007-09-14 15:48:13 +00:00
Evan Cheng
0d738fff6d Fixed a typo that's causing a missing kill marker. 
llvm-svn: 41893
 2007-09-12 23:02:04 +00:00
Evan Cheng
b9a6798216 Sometimes a MI can define a register as well as defining a super-register at the 
same time. Do not mark the "smaller" def as dead.

llvm-svn: 41871
 2007-09-11 22:34:47 +00:00
Chris Lattner
5fd9bec89d this is not infinite recursion. 
llvm-svn: 41806
 2007-09-10 21:16:23 +00:00
Dale Johannesen
9dfdc452d9 Implement misaligned FP loads and stores. 
llvm-svn: 41786
 2007-09-08 19:29:23 +00:00
Bill Wendling
04a6163921 Add missing index versions of instructions to the map. 
llvm-svn: 41776
 2007-09-07 22:01:02 +00:00
Dan Gohman
3bc1bc2590 Avoid storing and reloading zeros and other constants from stack slots 
by flagging the associated instructions as being trivially rematerializable.

llvm-svn: 41775
 2007-09-07 21:32:51 +00:00
Rafael Espindola
8c57e70f93 Add support for having different alignment for objects on call frames. 
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768
 2007-09-07 14:52:14 +00:00
Anton Korobeynikov
899c0c9c8d Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register 
liveins and we let frontend solve type issue, not lowering code :)

llvm-svn: 41763
 2007-09-07 11:39:35 +00:00
Anton Korobeynikov
0e3789f07a Proper handle case, when aliasee is external weak symbol referenced only by alias itself. 
Also, fix a case, when target doesn't have weak symbols supported.

llvm-svn: 41746
 2007-09-06 17:21:48 +00:00
Evan Cheng
896c1ed385 Fix a bug in X86InstrInfo::convertToThreeAddress that caused it to codegen: 
leal    (,%rcx,8), %rcx
It should be
leal    (,%rcx,8), %ecx

llvm-svn: 41735
 2007-09-06 00:14:41 +00:00
Dale Johannesen
f9ca7b6094 Change all floating constants that are not exactly 
representable to use hex format.

llvm-svn: 41722
 2007-09-05 17:50:36 +00:00
Duncan Sands
2e32997f97 Testcases for PR1628. 
llvm-svn: 41719
 2007-09-05 11:53:04 +00:00
Bill Wendling
13549db795 Add the 64-bit versions of the DS* Altivec instructions. 
llvm-svn: 41717
 2007-09-05 04:05:20 +00:00
Evan Cheng
bb21883dd3 Fix for PR1632. EHSELECTION always produces a i32 value. 
llvm-svn: 41712
 2007-09-04 20:39:26 +00:00
Evan Cheng
02c6081f2d Fix for PR1613: added 64-bit rotate left PPC instructions and patterns. 
llvm-svn: 41711
 2007-09-04 20:20:29 +00:00
Evan Cheng
9c7cff8e62 Fix a gcroot lowering bug. 
llvm-svn: 41668
 2007-09-01 02:00:51 +00:00
Rafael Espindola
4ddaad4de0 Initial support for calling functions with byval arguments on x86-64 
llvm-svn: 41643
 2007-08-31 15:06:30 +00:00
Evan Cheng
064691b876 Update test case to reflect Dale's change. 
llvm-svn: 41639
 2007-08-31 06:29:32 +00:00