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Commit Graph

4588 Commits

Author SHA1 Message Date
Chris Lattner
b36a4a7a84 this xform is implemented.
llvm-svn: 45404
2007-12-29 08:19:39 +00:00
Chris Lattner
f8e408b7b1 Codegen:
as:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstps	(%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret

instead of:

_bar:
	pushl	%esi
	subl	$8, %esp
	movl	16(%esp), %esi
	call	L_foo$stub
	fstpl	(%esi)
	cvtsd2ss	(%esi), %xmm0
	movss	%xmm0, (%esi)
	addl	$8, %esp
	popl	%esi
	#FP_REG_KILL
	ret

llvm-svn: 45401
2007-12-29 06:57:38 +00:00
Chris Lattner
e3515220d2 avoid going through a stack slot to convert from fpstack to xmm reg
if we are just going to store it back anyway.  This improves things 
like:
double foo();
void bar(double *P) { *P = foo(); }

llvm-svn: 45399
2007-12-29 06:41:28 +00:00
Chris Lattner
2369d2f4ab dead calls to llvm.stacksave can be deleted, even though they
have potential side-effects.

llvm-svn: 45392
2007-12-29 00:59:12 +00:00
Chris Lattner
e26989231e upgrade this test
llvm-svn: 45391
2007-12-29 00:57:06 +00:00
Devang Patel
d601ada369 Test -simplifycfg only.
llvm-svn: 45389
2007-12-28 22:59:48 +00:00
Owen Anderson
ddb5d73f0a Add a testcase for my recent InstCombine fix, written by Nicholas.
llvm-svn: 45386
2007-12-28 21:08:43 +00:00
Gordon Henriksen
86e98275ff Adding bindings for target triple and data layout.
llvm-svn: 45369
2007-12-27 20:13:47 +00:00
Chris Lattner
a432f12b76 one fewer uncond branch with my codegenprepare hack for single-mbb backedges.
llvm-svn: 45360
2007-12-26 17:23:47 +00:00
Gordon Henriksen
e8226d70a9 Tests for changes made in r45356, where IPO optimizations would drop
collector algorithms.

llvm-svn: 45357
2007-12-26 02:47:37 +00:00
Gordon Henriksen
c0a3899bbf GC poses hazards to the inliner. Consider:
define void @f() {
            ...
            call i32 @g()
            ...
    }

    define void @g() {
            ...
    }

The hazards are:

  - @f and @g have GC, but they differ GC. Inlining is invalid. This
    may never occur.
  - @f has no GC, but @g does. g's GC must be propagated to @f.

The other scenarios are safe:

  - @f and @g have the same GC.
  - @f and @g have no GC.
  - @g has no GC.

This patch adds inliner checks for the former two scenarios.

llvm-svn: 45351
2007-12-25 03:10:07 +00:00
Gordon Henriksen
a9f4ed4070 Noting and enforcing that GC intrinsics are valid only within a
function with GC.

This will catch the error when the inliner inlines a function with
GC into a caller with no GC.

llvm-svn: 45350
2007-12-25 02:31:26 +00:00
Gordon Henriksen
44841db057 Adjusting verification of "llvm.gc*" intrinsic prototypes to match
LangRef.

llvm-svn: 45349
2007-12-25 02:02:10 +00:00
Gordon Henriksen
606ac32019 C and Ocaml bindings for ExecutionEngine (i.e., the JIT compiler).
llvm-svn: 45335
2007-12-23 16:59:28 +00:00
Gordon Henriksen
54ef30cb0e Fix a partial application typo.
llvm-svn: 45317
2007-12-22 19:41:30 +00:00
Chris Lattner
d64df490ca implement InstCombine/shift-trunc-shift.ll. This allows
us to compile:
#include <math.h>
int t1(double d) { return signbit(d); }

into:

_t1:
	movd	%xmm0, %rax
	shrq	$63, %rax
	ret

instead of:

_t1:
	movd	%xmm0, %rax
	shrq	$32, %rax
	shrl	$31, %eax
	ret

on x86-64.

llvm-svn: 45311
2007-12-22 09:07:47 +00:00
Devang Patel
e035f776e9 If succ has succ itself as one of the predecessors then do
not merge current bb and succ even if bb's terminator is
unconditional branch to succ.

llvm-svn: 45305
2007-12-22 01:32:53 +00:00
Duncan Sands
bc10247769 Get the verifier to check attributes on calls as well
as on functions.  Make it verify invokes and not just
ordinary calls.  As a (desired) side-effect, it is no
longer legal to have call attributes on arguments that
are being passed to the varargs part of a varargs
function (llvm-as drops them on the floor anyway).

llvm-svn: 45286
2007-12-21 19:19:01 +00:00
Duncan Sands
85ca85c070 Make DAE not wipe out attributes on calls, and not drop
return attributes on the floor.  In the case of a call
to a varargs function where the varargs arguments are
being removed, any call attributes on those arguments
need to be dropped.  I didn't do this because I plan to
make it illegal to have such attributes (see next patch).
With this change, compiling the gcc filter2 eh test at -O0
and then running opt -std-compile-opts on it results in
a correctly working program (compiling at -O1 or higher
results in the test failing due to a problem with how we
output eh info into the IR).

llvm-svn: 45285
2007-12-21 19:16:16 +00:00
Christopher Lamb
7ca648a7b1 Implement review feedback, including additional transforms
(icmp slt (sub A B) 1) -> (icmp sle A B)
icmp sgt (sub A B) -1) -> (icmp sge A B)

and add testcase.

llvm-svn: 45256
2007-12-20 07:21:11 +00:00
Evan Cheng
18c39c03a7 Remove xfail. This is fixed.
llvm-svn: 45254
2007-12-20 02:25:21 +00:00
Scott Michel
5cbdbd26a8 More working CellSPU tests:
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads

llvm-svn: 45242
2007-12-20 00:44:13 +00:00
Gordon Henriksen
4c9ef1e54f Use a module to group calling convention values, too.
llvm-svn: 45236
2007-12-20 00:13:26 +00:00
Gordon Henriksen
fe94b95046 Using modules to group enumerations in Ocaml bindings.
llvm-svn: 45229
2007-12-19 22:54:12 +00:00
Gordon Henriksen
46137f1e2e Adding bindings for memory buffers and module providers. Switching
to exceptions rather than variants for error handling in Ocaml.

llvm-svn: 45226
2007-12-19 22:30:40 +00:00
Scott Michel
83ac96e27d CellSPU testcase, extract_elt.ll: extract vector element.
llvm-svn: 45219
2007-12-19 21:17:42 +00:00
Duncan Sands
56f3add5b7 When inlining through an 'nounwind' call, mark inlined
calls 'nounwind'.  It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.

llvm-svn: 45218
2007-12-19 21:13:37 +00:00
Scott Michel
686bbd9b19 More working CellSPU test cases:
- call.ll: Function call
- ctpop.ll: Count population
- dp_farith.ll: DP arithmetic
- eqv.ll: Equivalence primitives
- fcmp.ll: SP comparisons
- fdiv.ll: SP division
- fneg-fabs.ll: SP negation, aboslute value
- int2fp.ll: Integer -> SP conversion
- rotate_ops.ll: Rotation primitives
- select_bits.ll: (a & c) | (b & ~c) bit selection
- shift_ops.ll: Shift primitives
- sp_farith.ll: SP arithmentic

llvm-svn: 45217
2007-12-19 20:50:49 +00:00
Scott Michel
6cb9f6d20c Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll
(vector insertions)

llvm-svn: 45216
2007-12-19 20:15:47 +00:00
Scott Michel
d4d96bb6f6 Add new immed16.ll test case, fix CellSPU errata to make test case work.
llvm-svn: 45196
2007-12-19 07:35:06 +00:00
Christopher Lamb
d56318b885 Remove an orthogonal transformation of the selection condition from my most recent submission.
llvm-svn: 45169
2007-12-18 20:30:28 +00:00
Evan Cheng
8824950e8f Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id.
llvm-svn: 45167
2007-12-18 19:38:14 +00:00
Christopher Lamb
437b4d229e Fix typos.
llvm-svn: 45159
2007-12-18 09:45:40 +00:00
Christopher Lamb
aeb76743dc Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV.
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll

llvm-svn: 45158
2007-12-18 09:34:41 +00:00
Evan Cheng
36bfae49e3 FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit.
llvm-svn: 45157
2007-12-18 08:42:10 +00:00
Christopher Lamb
efdf2791b2 Don't forget to print address space qualifiers when printing out the type table! Thanks to Gordon Henriksen for pointing this out.
llvm-svn: 45147
2007-12-18 03:49:35 +00:00
Dale Johannesen
d0377b8eb2 Testcase for preceding FE fix
llvm-svn: 45144
2007-12-18 01:58:38 +00:00
Scott Michel
94d7a2f1f2 i32 immediate constant test case for CellSPU
llvm-svn: 45134
2007-12-17 23:45:52 +00:00
Evan Cheng
d9df071ead Bring back int_x86_sse2_movl_dq intrinsic for backward compatibility. Make sure
it's auto-upgraded to a shufflevector instruction.

llvm-svn: 45131
2007-12-17 22:33:23 +00:00
Scott Michel
4f980e1acd - Restore some i8 functionality in CellSPU
- New test case: nand.ll

llvm-svn: 45130
2007-12-17 22:32:34 +00:00
Duncan Sands
3a0d757bd5 Make invokes of inline asm legal. Teach codegen
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).

llvm-svn: 45108
2007-12-17 18:08:19 +00:00
Gordon Henriksen
42edc61320 Disabling a RUN line that's broken until addrspace roundtrips
through llvm-as|llvm-dis.

llvm-svn: 45097
2007-12-17 16:09:28 +00:00
Gordon Henriksen
ef2c27d164 C and Ocaml bindings for address spaces, for that burgeoning market
for Ocaml-based compilers targeting embedded devices. :)

llvm-svn: 45096
2007-12-17 16:08:32 +00:00
Duncan Sands
bf62f62058 Make instcombine promote inline asm calls to 'nounwind'
calls.  Remove special casing of inline asm from the
inliner.  There is a potential problem: the verifier
rejects invokes of inline asm (not sure why).  If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created.  This is bad but
I'm not sure what the best approach is.  I'm tempted
to remove the check in the verifier...

llvm-svn: 45073
2007-12-16 15:51:49 +00:00
Evan Cheng
1d95b669b6 Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.
llvm-svn: 45058
2007-12-15 03:00:47 +00:00
Scott Michel
307f334014 Start committing working test cases for CellSPU.
llvm-svn: 45050
2007-12-15 00:38:50 +00:00
Duncan Sands
091a505971 Teach the interpreter to read and write memory in the
endianness of the target not of the host.  Done by the
simple expedient of reversing bytes for primitive types
if the host and target endianness don't match.  This is
correct for integer and pointer types.  I don't know if
it is correct for floating point types.

llvm-svn: 45039
2007-12-14 19:38:31 +00:00
Dan Gohman
5290ca3d65 Don't redirect stderr when it isn't needed.
llvm-svn: 45033
2007-12-14 15:15:11 +00:00
Evan Cheng
6909ff8c4b Fix ctlz and cttz. llvm definition requires them to return number of bits in of the src type when value is zero.
llvm-svn: 45029
2007-12-14 08:30:15 +00:00
Anders Carlsson
900a684ae7 All MMX shift instructions took a <2 x i32> vector as the shift amount parameter. Change this to be <1 x i64> instead, which matches the assembler instruction.
llvm-svn: 45027
2007-12-14 06:38:54 +00:00