948653915f
Preserve simple analysis.
...
llvm-svn: 41054
2007-08-13 22:22:13 +00:00
b8a41bb4f1
Preserve dominator info.
...
llvm-svn: 41053
2007-08-13 22:13:24 +00:00
c0fa0c52b3
Add methods to erase basic block entry.
...
llvm-svn: 41052
2007-08-13 22:10:29 +00:00
da48cf40db
If NewBB dominates DestBB then DestBB is not part of NewBB's dominance frontier.
...
llvm-svn: 41051
2007-08-13 21:59:17 +00:00
2b40caa861
move assertion into mutex guard, a partial fix for PR1606.
...
llvm-svn: 41050
2007-08-13 20:08:16 +00:00
ccb3611881
When x86 addresses matching exceeds its recursion limit, check to
...
see if the base register is already occupied before assuming it can be
used. This fixes bogus code generation in the accompanying testcase.
llvm-svn: 41049
2007-08-13 20:03:06 +00:00
4e7f673f65
Fix PR1607
...
llvm-svn: 41048
2007-08-13 18:42:37 +00:00
3251377104
test that the ptr-to-method is succefully eliminated, leaving just the vtable dispatch.
...
llvm-svn: 41047
2007-08-13 17:17:03 +00:00
aadc778782
Constant fold: getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1)
...
Into: inttoptr (i64 0 to i8*) -> null
This occurs in the example in PR1602. With this fixed, we now compile
the example in PR1602 into fully "devirtualized" code:
define void @_Z1g1S(%struct.S* noalias %s) {
entry: %tmp131415 = getelementptr %struct.S* %s, i32 0, i32 0 ; <i32 (...)***> [#uses=1] %tmp16 = load i32 (...)*** %tmp131415, align 4 ; <i32 (...)**> [#uses=1]
%tmp26277 = load i32 (...)** %tmp16 ; <i32 (...)*> [#uses=1]
%tmp2829 = bitcast i32 (...)* %tmp26277 to void (%struct.S*)* ; <void (%struct.S*)*> [#uses=1]
tail call void %tmp2829( %struct.S* %s )
ret void
}
This still has the vtable dispatch (as required) but does not have any pointer
to method cruft left.
llvm-svn: 41046
2007-08-13 17:09:08 +00:00
5ca98c657d
Kill info update bugs.
...
llvm-svn: 41043
2007-08-13 07:12:23 +00:00
ab13178928
Make use of the llvm-ld tool's new ability to read input from stdin to extract
...
the list of link time passes to be run, just as for opt, with the
-debug-pass=Arguments option.
llvm-svn: 41040
2007-08-13 06:19:51 +00:00
7c38b0dc15
Don't build llvm-stub twice.
...
llvm-svn: 41039
2007-08-13 00:25:47 +00:00
1399f64e3b
oops, forgot to commit this.
...
llvm-svn: 41034
2007-08-12 16:55:14 +00:00
f3317d5286
Change casts from old style to new style. This helps document the details
...
better, gives the compiler a chance to validate the cast and reduces warnings
if the user turns on -Wold-style-cast option.
llvm-svn: 41033
2007-08-12 08:12:35 +00:00
f258578206
Split loops and do CFG cleanup.
...
llvm-svn: 41029
2007-08-12 07:02:51 +00:00
9f90f965de
Remove unused variables.
...
llvm-svn: 41028
2007-08-12 04:45:36 +00:00
af21e9550e
No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack.
...
llvm-svn: 41024
2007-08-12 01:26:19 +00:00
460e34afed
constant fold ptrtoint(inttoptr) with target data when available. This allows
...
us to fold the entry block of PR1602 to false instead of:
br i1 icmp eq (i32 and (i32 ptrtoint (void (%struct.S*)* inttoptr (i64
1 to void (%struct.S*)*) to i32), i32 1), i32 0), label %cond_next, label
%cond_true
llvm-svn: 41023
2007-08-11 23:49:01 +00:00
99c8ee2977
Transform a load from an undef/zero global into an undef/global even if we
...
have complex pointer manipulation going on. This allows us to compile
stuff like this:
__m128i foo(__m128i x){
static const unsigned int c_0[4] = { 0, 0, 0, 0 };
__m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
x = _mm_unpacklo_epi8(x, v_Zero);
return x;
}
into:
_foo:
xorps %xmm1, %xmm1
punpcklbw %xmm1, %xmm0
ret
llvm-svn: 41022
2007-08-11 18:48:48 +00:00
750b3dfcf5
expand a note
...
llvm-svn: 41021
2007-08-11 18:19:07 +00:00
ee44ab5b5f
With evan's explicit flag representation, hopefully we will finally be
...
able to 3-addressify away stuff like this:
movl %ecx, %eax
decl %eax
llvm-svn: 41020
2007-08-11 18:16:46 +00:00
3687007119
Now that llvm-ld can accept - as input from stdin, use this feature to extract
...
the pass arguments that it supports.
llvm-svn: 41019
2007-08-11 16:11:22 +00:00
2dc9f13278
Fix a comment typo noticed by Sandro Magi.
...
llvm-svn: 41018
2007-08-11 15:57:56 +00:00
cdbd82ee37
64-bit SSSE3 ops that use MMX registers don't require 16-byte alignment.
...
Make a 'memop' pattern just for them.
llvm-svn: 41017
2007-08-11 09:52:53 +00:00
05cc486c7b
Code to maintain kill information during register coalescing.
...
llvm-svn: 41016
2007-08-11 00:59:19 +00:00
44e79f8aba
Use subregs to improve any_extend code generation when feasible.
...
llvm-svn: 41013
2007-08-10 22:22:41 +00:00
030a59d967
Fix test so it passes.
...
llvm-svn: 41012
2007-08-10 22:20:57 +00:00
b372abab14
Increase efficiency of sign_extend_inreg by using subregisters for truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)).
...
llvm-svn: 41010
2007-08-10 21:48:46 +00:00
f0c236fb8a
Edit README in light of previous LEA16 commit.
...
llvm-svn: 41009
2007-08-10 21:29:05 +00:00
d36d30b53c
Add 2-addr to 3-addr promotion code that allows 32-bit LEA to be used via subregisters when 16-bit LEA is disabled.
...
llvm-svn: 41007
2007-08-10 21:18:25 +00:00
e081928f49
Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there.
...
llvm-svn: 41005
2007-08-10 21:11:55 +00:00
d305c404be
Do not overuse std::string. Pass around char * directly.
...
llvm-svn: 41001
2007-08-10 18:29:32 +00:00
f417c2cc34
Clone loop.
...
llvm-svn: 40998
2007-08-10 18:07:13 +00:00
aa36a43908
Add utility to clone loops.
...
llvm-svn: 40997
2007-08-10 17:59:47 +00:00
0b1af29f28
Add #ifndef guard.
...
llvm-svn: 40991
2007-08-10 15:58:23 +00:00
430826179c
add #ifndef guards
...
llvm-svn: 40990
2007-08-10 15:53:08 +00:00
5109a88ac3
add Value::getNameStart/getNameLen() accessors.
...
llvm-svn: 40989
2007-08-10 15:34:35 +00:00
97b58e27e6
Add a test script for counting lines. This can be used instead of the
...
"| grep foo | wc -l | grep 2" idiom used by many tests, so that, for
example, tests don't mistakenly accept a count of 12 when 2 is
expected. Also, the new form is more consice: "| grep foo | count 2".
llvm-svn: 40988
2007-08-10 15:07:05 +00:00
a17799a3bd
Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to
...
use an intptr ValueType instead of i32 for the index operand in
getCopyToParts.
llvm-svn: 40987
2007-08-10 14:59:38 +00:00
66011c17d5
propagate struct size and alignment of byval arguments to the DAG
...
llvm-svn: 40986
2007-08-10 14:44:42 +00:00
7014615087
For kicks, I though it would be fun to use the correct opcode.
...
llvm-svn: 40985
2007-08-10 09:00:17 +00:00
0c8aa5cd64
memcpy with zero length is hugely expensive, so avoid it. This speeds up coallescing from 1.17s to 0.88s on siod.
...
llvm-svn: 40984
2007-08-10 07:02:50 +00:00
b21e76ecb1
small speedup in the case where a smallvector is default ctor'd from
...
an empty vector. This speeds up llc slightly.
llvm-svn: 40983
2007-08-10 06:54:38 +00:00
2377206923
Adding SSSE3 intrinsics.
...
llvm-svn: 40982
2007-08-10 06:22:27 +00:00
de2aa65877
minor simplifications.
...
llvm-svn: 40981
2007-08-10 06:22:25 +00:00
dd6304f6b1
avoid copying strings.
...
llvm-svn: 40980
2007-08-10 06:17:04 +00:00
9a4761464f
Remove unncessary duplication.
...
llvm-svn: 40979
2007-08-10 00:59:03 +00:00
7bdf4531bb
Calculate exit and start value of true loop and false loop respectively.
...
llvm-svn: 40978
2007-08-10 00:53:35 +00:00
67af6cd7ea
ExitCondition and Induction variable are loop constraints
...
not split condition constraints.
llvm-svn: 40977
2007-08-10 00:33:50 +00:00
2b9fe84b07
unbreak the build
...
llvm-svn: 40976
2007-08-09 23:55:17 +00:00
Devang Patel