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124 Commits

Author SHA1 Message Date
Dan Gohman
c9dec33f3f Add support for multiple return values for the PPC target by 
converting call result lowering to use the CallingConvLowering
infastructure.

llvm-svn: 48552
 2008-03-19 21:39:28 +00:00
Evan Cheng
3d9309c11d Fix live variables issues: 
1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
   = EAX, AX<imp-use,kill>
...
AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.

llvm-svn: 48521
 2008-03-19 00:52:20 +00:00
Dale Johannesen
7f51ebc90c Make conversions of i8/i16 to ppcf128 work. 
llvm-svn: 48493
 2008-03-18 17:28:38 +00:00
Evan Cheng
5750c3cd1e Rewrite code that propagate isDead information after a dead copy is coalesced. This remove some ugly spaghetti code and fixed a number of subtle bugs. 
llvm-svn: 48490
 2008-03-18 08:26:47 +00:00
Dan Gohman
486f664806 More APInt-ification. 
llvm-svn: 48344
 2008-03-13 22:13:53 +00:00
Dale Johannesen
c03216ac3e The feature this is testing did not work in the general case, 
and has been removed.

llvm-svn: 48232
 2008-03-11 17:48:26 +00:00
Evan Cheng
6a30fc4e94 Learn how to xfail a test. 
llvm-svn: 48219
 2008-03-11 07:51:31 +00:00
Evan Cheng
9ae65a13c3 XFAIL due to Dale's change. 
llvm-svn: 48216
 2008-03-11 07:15:44 +00:00
Dan Gohman
85bfbe2293 Generalize ExpandIntToFP to handle the case where the operand is legal 
and it's the result that requires expansion. This code is a little confusing
because the TargetLoweringInfo tables for [US]INT_TO_FP use the operand type
(the integer type) rather than the result type. 

llvm-svn: 48206
 2008-03-11 01:59:03 +00:00
Dan Gohman
67aed9bbb0 Implement more support for fp-to-i128 and i128-to-fp conversions. 
llvm-svn: 48189
 2008-03-10 23:03:31 +00:00
Bill Wendling
8e3a4a45ce Update llc flags for PPC register scavenger. 
llvm-svn: 48187
 2008-03-10 22:59:08 +00:00
Chris Lattner
1b16dc4a6e upgrade this test 
llvm-svn: 48062
 2008-03-09 00:32:10 +00:00
Dan Gohman
afeac8050d Add support for calls with i128 return values on ppc64. 
llvm-svn: 48041
 2008-03-08 00:19:12 +00:00
Dan Gohman
5bf464e1e6 Add support for lowering 128-bit shifts on ppc64. 
llvm-svn: 48029
 2008-03-07 20:36:53 +00:00
Bill Wendling
f0615bf090 Add testcase. 
llvm-svn: 48005
 2008-03-06 23:34:22 +00:00
Evan Cheng
8f5092bea8 Fix a coalescer bug wrt how dead copy interval is shortened. 
llvm-svn: 47966
 2008-03-05 22:09:42 +00:00
Bill Wendling
cf70f2c2a0 Use -enable-ppc-regscavenger flag for these checks 
llvm-svn: 47916
 2008-03-04 23:16:26 +00:00
Bill Wendling
8d64999daf This is the initial check-in for adding register scavenging to PPC. (Currently, 
PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that
it uses a register other than the default R0 register (the scavenger scrounges
for one). A significant part of this patch fixes how kill information is
handled.

llvm-svn: 47863
 2008-03-03 22:19:16 +00:00
Chris Lattner
4c67781884 Evan implemented this. 
llvm-svn: 47827
 2008-03-02 17:56:29 +00:00
Dale Johannesen
7b8dae547d New test for misaligned Altivec laod/store. 
llvm-svn: 47698
 2008-02-27 23:14:50 +00:00
Dan Gohman
5d96a06b0b Don't hard-code the mask size to be 32, which is incorrect on ppc64 
and was causing aborts with the new APInt changes. This may also be
fixing an obscure ppc64 bug.

llvm-svn: 47692
 2008-02-27 21:12:32 +00:00
Bill Wendling
24932cf415 Upgrade testcase. 
llvm-svn: 47644
 2008-02-26 23:22:40 +00:00
Gabor Greif
a8990a9cac Really feed llvm-as with the testcase, do not let it read from stdin. This fixes the hangs seen on solaris10. 
llvm-svn: 47604
 2008-02-26 13:37:13 +00:00
Tanya Lattner
230c714773 Remove llvm-upgrade and update tests. 
llvm-svn: 47325
 2008-02-19 08:07:33 +00:00
Nate Begeman
cfd9883301 Add testcase for recent legalizer change 
llvm-svn: 47049
 2008-02-13 06:48:40 +00:00
Evan Cheng
19f684ed72 Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards. 
llvm-svn: 46953
 2008-02-11 08:30:52 +00:00
Evan Cheng
69d5e0fc0f If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead). 
llvm-svn: 46763
 2008-02-05 20:04:18 +00:00
Chris Lattner
35f063e37c Add target triples to these so they don't fail on linux. 
llvm-svn: 46496
 2008-01-29 06:26:07 +00:00
Bill Wendling
26fb9335f5 Need to convert to LLVM code and not C. 
llvm-svn: 46397
 2008-01-26 06:56:08 +00:00
Bill Wendling
3e622b88b6 Rename the .c to .ll 
llvm-svn: 46396
 2008-01-26 06:53:40 +00:00
Bill Wendling
7151e8d92c Move testcase to the code gen directory. 
llvm-svn: 46395
 2008-01-26 06:53:06 +00:00
Dale Johannesen
7807e86260 Implement flt_rounds for PowerPC. 
llvm-svn: 46174
 2008-01-18 19:55:37 +00:00
Chris Lattner
febc7ea9bf Fix a latent bug exposed by my truncstore patch. We compiled stfiwx-2.ll to: 
_test:
	fctiwz f0, f1
	stfiwx f0, 0, r4
	blr 

instead of:

_test:
	fctiwz f0, f1
	stfd f0, -8(r1)
	nop
	nop
	lwz r2, -4(r1)
	stb r2, 0(r4)
	blr 

The former is not correct (stores 4 bytes, not 1).

llvm-svn: 46161
 2008-01-18 16:54:56 +00:00
Chris Lattner
3c9f208ca8 add testcase for regression 
llvm-svn: 46073
 2008-01-16 18:03:52 +00:00
Chris Lattner
aeab9aefb3 remove darwin/i386 t-t 
llvm-svn: 45743
 2008-01-08 06:52:51 +00:00
Chris Lattner
cafc567fb7 Finally implement correct ordered comparisons for PPC, even though 
the code generated is not wonderful.  This turns a miscompilation into
a code quality bug (noted in the ppc readme).  This fixes PR642, which
is over 2 years old (!).  Nate, please review this.

llvm-svn: 45742
 2008-01-08 06:46:30 +00:00
Chris Lattner
e93a775a4d Fix a significant code quality regression I introduced on PPC64 quite 
a while ago.  We now produce:

_foo:
	mflr r0
	std r0, 16(r1)
	ld r2, 16(r1)
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

instead of:

_foo:
	mflr r0
	std r0, 16(r1)
	lis r0, 0
	ori r0, r0, 16
	ldx r2, r1, r0
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

for:

void foo(void **X) {
  *X = __builtin_return_address(0);
}

on ppc64.

llvm-svn: 44701
 2007-12-08 07:04:58 +00:00
Chris Lattner
e16166b78d implement __builtin_return_addr(0) on ppc. 
llvm-svn: 44700
 2007-12-08 06:59:59 +00:00
Chris Lattner
5e0cabc90e Fix a crash on invalid code due to memcpy lowering. 
llvm-svn: 44378
 2007-11-27 22:14:42 +00:00
Chris Lattner
7672c08059 Testcase for PR1811 
llvm-svn: 44244
 2007-11-19 21:43:22 +00:00
Dale Johannesen
f2dcb50351 Testcase from PR 1508 (although its's somewhat 
orthogonal to the main problem there)

llvm-svn: 44194
 2007-11-16 23:16:35 +00:00
Evan Cheng
28c61e33a4 Skip over deleted val#'s. 
llvm-svn: 43700
 2007-11-05 06:46:45 +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
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
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
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
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
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