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82ada54da0
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4745 Commits

Author SHA1 Message Date
Devang Patel
82ada54da0 Fix PR 1995. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 22:49:13 +00:00
Evan Cheng
5fd79d0560 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 21:20:40 +00:00
Evan Cheng
33663fc104 Added missing entries in X86 load / store folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 00:12:56 +00:00
Evan Cheng
be3bf42331 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 08:53:49 +00:00
Evan Cheng
b745e88bf0 It's PR1925, not PR1609. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46825 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 22:07:17 +00:00
Bill Wendling
e00fec554b Temporarily reverting: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46822 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 20:03:07 +00:00
Evan Cheng
2fc628d662 Fix a number of local register allocator issues: PR1609. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46821 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 19:16:53 +00:00
Evan Cheng
a58891ff1e Fix PR1975: dag isel emitter produces patterns that isel wrong flag result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46776 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 22:50:29 +00:00
Evan Cheng
bb4151bd1f 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). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 20:04:18 +00:00
Chris Lattner
7c95debb49 Fix a bug compiling PR1978 (perhaps not the only one though) which 
was incorrectly simplifying "x == (gep x, 1, i)" into false, even 
though i could be negative.  As it turns out, all the code to 
handle this already existed, we just need to disable the incorrect
optimization case and let the general case handle it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 04:45:32 +00:00
Evan Cheng
e4908814d2 This should also work on x86 now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46730 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 00:25:31 +00:00
Duncan Sands
6cc24947b6 Crashes LegalizeTypes with "Do not know how to 
expand the result of this operator!" (node: ctlz).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:07:02 +00:00
Duncan Sands
06418c5610 Crashes LegalizeTypes with "Do not know how to split 
this operator's operand" (node: extract_subvector).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:05:42 +00:00
Chris Lattner
003de9a81e remove target triple to make this test more "generic" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:02:37 +00:00
Duncan Sands
df3fb5ef97 Crashed the new type legalizer. Not likely to catch 
any bugs in the future since to get the crash you also
need hacked in fake libcall support (which creates odd
but legal trees), but since adding it doesn't hurt...
Thanks to Chris for this ultimately reduced version.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46706 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 09:40:27 +00:00
Owen Anderson
d02c0bc984 Make this test more aggressive, to cover recent improvements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 04:55:24 +00:00
Owen Anderson
6f7a52d300 Allow GVN to hack on memcpy's, making them open to further optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 02:59:58 +00:00
Nick Lewycky
f2a5f012f3 Tag this test with the PR reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 16:35:19 +00:00
Nick Lewycky
5be2920149 There are some cases where icmp(add) can be folded into a new icmp. Handle them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 16:33:09 +00:00
Gordon Henriksen
e62a8a353c Fixing a bug creating floating point constants of type other 
than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46656 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 01:07:50 +00:00
Lauro Ramos Venancio
859efca7f9 CBackend: Implement unaligned load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46646 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 21:25:59 +00:00
Duncan Sands
532d022794 Don't drop function/call return attributes like 'nounwind'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46645 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 20:37:16 +00:00
Dale Johannesen
7757fff6ae Accept getelementptr starting at GV with all 0 indices as a 
legitimate way of representing global variable GV in debug info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46565 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:00:21 +00:00
Tanya Lattner
e504d76a15 Pointers change size depending upon the target. Remove them to make the test more stable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46548 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 05:15:15 +00:00
Owen Anderson
772601a885 Make DSE much more aggressive by performing DCE earlier. Update a testcase to reflect this increased aggressiveness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 01:24:47 +00:00
Chris Lattner
b10e0da065 Fix a bug where scalarrepl would discard offset if type would match. 
In practice this can only happen on code with already undefined behavior, 
but this is still a good thing to handle correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 00:39:15 +00:00
Evan Cheng
c748412c42 Update this test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46526 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 19:30:05 +00:00
Chris Lattner
c69d3c9442 Don't let globalopt hack on volatile loads or stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46523 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 19:01:37 +00:00
Chris Lattner
2454a2e0c3 eliminate additions of 0.0 when they are obviously dead. This has to be careful to 
avoid turning -0.0 + 0.0 -> -0.0 which is incorrect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46499 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 06:52:45 +00:00
Owen Anderson
cca1867ab7 Add a testcase for eliminating memcpy's at the end of functions. Forgot to commit this with my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46497 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 06:40:32 +00:00
Chris Lattner
7cf9abff23 Add target triples to these so they don't fail on linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46496 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 06:26:07 +00:00
Duncan Sands
b7cbab8b28 This would be better done as an executable test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46493 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 06:04:54 +00:00
Duncan Sands
3cecb51cb3 After recent changes we fail to optimize this test 
sufficiently to have it pass.  I'm removing it from
the testsuite and adding it to PR452 instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46492 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 05:57:23 +00:00
Devang Patel
c840da14c6 Filter loops that subtract induction variables. 
These loops are not yet handled.

Fix PR 1912.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46484 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 02:20:41 +00:00
Scott Michel
053c1da8d9 Overhaul Cell SPU's addressing mode internals so that there are now 
only two addressing mode nodes, SPUaform and SPUindirect (vice the
three previous ones, SPUaform, SPUdform and SPUxform). This improves
code somewhat because we now avoid using reg+reg addressing when
it can be avoided. It also simplifies the address selection logic,
which was the main point for doing this.

Also, for various global variables that would be loaded using SPU's
A-form addressing, prefer D-form offs[reg] addressing, keeping the
base in a register if the variable is used more than once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46483 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 02:16:57 +00:00
Devang Patel
2ff48bc492 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46479 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 01:10:04 +00:00
Bill Wendling
fcd06cdc7b Add test to make sure that #pragma mark/error doesn't error if there are 
unbalanced quotes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 00:41:29 +00:00
Duncan Sands
07d403e222 Pure/const functions with ByVal parameters cannot 
be marked readonly either.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46456 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 19:25:47 +00:00
Chris Lattner
349c72a35d this test is now compiled into the right thing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46454 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 17:38:46 +00:00
Duncan Sands
1f0315462b Make this more likely to be passed byval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46451 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 10:35:11 +00:00
Nick Lewycky
4189a538e4 Handle some more combinations of extend and icmp. Fixes PR1940. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 03:48:02 +00:00
Chris Lattner
25feae555d Fix PR1932 by disabling an xform invalid for fdiv. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46429 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 00:58:18 +00:00
Chris Lattner
05bb789430 Fix PR1938 by forcing the code that uses an undefined value to branch one 
way or the other.  Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could 
cause an infeasible path to be made feasible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46427 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-28 00:32:30 +00:00
Chris Lattner
15c2351a93 Update this test. Due to dag combiner improvements, we now compile 
f7/f11 to:

_f7:
	eor r0, r0, #2, 2 @ -2147483648
	bx lr
_f11:
	bic r0, r0, #2, 2 @ -2147483648
	bx lr

instead of:

_f7:
	fmsr s0, r0
	fnegs s0, s0
	fmrs r0, s0
	bx lr

_f11:
	fmsr s0, r0
	fabss s0, s0
	fmrs r0, s0
	bx lr



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46423 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 23:26:37 +00:00
Nick Lewycky
c837abee2f Be more careful modifying the use_list while also iterating through it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46417 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 18:35:00 +00:00
Duncan Sands
d82375c1c4 Revert r46393: readonly/readnone functions are no 
longer allowed to write through byval arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46416 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 18:12:58 +00:00
Chris Lattner
3bd39d4ca8 Implement some dag combines that allow doing fneg/fabs/fcopysign in integer 
registers if used by a bitconvert or using a bitconvert.  This allows us to
avoid constant pool loads and use cheaper integer instructions when the
values come from or end up in integer regs anyway.  For example, we now 
compile CodeGen/X86/fp-in-intregs.ll to:

_test1:
	movl	$2147483648, %eax
	xorl	4(%esp), %eax
	ret
_test2:
	movl	$1065353216, %eax
	orl	4(%esp), %eax
	andl	$3212836864, %eax
	ret

Instead of:
_test1:
	movss	4(%esp), %xmm0
	xorps	LCPI2_0, %xmm0
	movd	%xmm0, %eax
	ret
_test2:
	movss	4(%esp), %xmm0
	andps	LCPI3_0, %xmm0
	movss	LCPI3_1, %xmm1
	andps	LCPI3_2, %xmm1
	orps	%xmm0, %xmm1
	movd	%xmm1, %eax
	ret

bitconverts can happen due to various calling conventions that require
fp values to passed in integer regs in some cases, e.g. when returning
a complex.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46414 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 17:42:27 +00:00
Bill Wendling
67fed1c8f2 The CorrelatedExpressions pass is now no more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46409 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 06:13:32 +00:00
Chris Lattner
b753065f6d Fold fptrunc(add (fpextend x), (fpextend y)) -> add(x,y), as GCC does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46406 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-27 05:29:54 +00:00
Chris Lattner
b8f43875c3 New test to verify that "merging 4 loads into a vec load" continues to work and 
continues to infer alignment info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46403 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-26 20:06:45 +00:00