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Author SHA1 Message Date
Reid Spencer
db91083d5a Upgrade this file completely instead of downgrading it. Make sure that 
false positives aren't made.

llvm-svn: 35913
 2007-04-11 17:51:03 +00:00
Chris Lattner
f29ad16397 fix an infinite loop compiling ldecod, notice by JeffC. 
llvm-svn: 35910
 2007-04-11 16:51:53 +00:00
Chris Lattner
e9a9a3f172 Fix incorrect fall-throughs in addr mode code. This fixes CodeGen/ARM/arm-negative-stride.ll 
llvm-svn: 35909
 2007-04-11 16:17:12 +00:00
Chris Lattner
e557a69c34 this got better 
llvm-svn: 35908
 2007-04-11 16:12:27 +00:00
Chris Lattner
ec844dd102 adjust test 
llvm-svn: 35907
 2007-04-11 16:04:04 +00:00
Chris Lattner
f7451ea3c2 Fix Transforms/ScalarRepl/union-pointer.ll 
llvm-svn: 35906
 2007-04-11 15:45:25 +00:00
Chris Lattner
32f6730bb1 Fix PR1318 by reacting appropriately to a mutating option list. 
llvm-svn: 35905
 2007-04-11 15:35:18 +00:00
Chris Lattner
0bf024fb83 change test name. 
llvm-svn: 35904
 2007-04-11 15:24:04 +00:00
Reid Spencer
bd2afc8391 Fix a bug where ICmpInst objects instantiated directly with a name would 
not retain that name. Not noticed because AsmParser always sets name after
construction. However, llvm2cpp noticed.

llvm-svn: 35903
 2007-04-11 13:04:48 +00:00
Reid Spencer
a9cb0e6602 Make the generated code for ConstantInt nicer. 
llvm-svn: 35902
 2007-04-11 13:02:56 +00:00
Reid Spencer
9b497be3c4 Fix an approximate calculation in an assertion not to give false negatives. 
llvm-svn: 35901
 2007-04-11 13:00:04 +00:00
Reid Spencer
9569890d38 Make sure this test uses llvm-upgrade. 
Don't allow false positives.

llvm-svn: 35900
 2007-04-11 12:46:06 +00:00
Reid Spencer
02fa4016d8 Teach llvm2cpp about packed structure types. 
llvm-svn: 35899
 2007-04-11 12:41:49 +00:00
Reid Spencer
2d8e57357e Fix several bugs relating to changes in the LLVM IR API or just outright 
typos in the output. This is sufficient to get most of the llvm2cpp tests
working again.

llvm-svn: 35898
 2007-04-11 12:28:56 +00:00
Reid Spencer
db5c4ad62d Regenerate. 
llvm-svn: 35897
 2007-04-11 12:10:58 +00:00
Reid Spencer
06deba6151 Fix a crash-by-unknown-exception caused by attempting to use a null pointer 
as the key for a map insertion.

llvm-svn: 35896
 2007-04-11 12:10:08 +00:00
Reid Spencer
44bc3843a6 Fix to not give false positives. 
llvm-svn: 35895
 2007-04-11 12:04:33 +00:00
Reid Spencer
43a624d516 Fix some issues with param attrs. 
llvm-svn: 35894
 2007-04-11 10:01:32 +00:00
Reid Spencer
356c181e74 Add support for parameter attributes. 
llvm-svn: 35893
 2007-04-11 09:54:08 +00:00
Chris Lattner
0a1e870a6b sext of compares. 
llvm-svn: 35892
 2007-04-11 06:57:54 +00:00
Chris Lattner
27a80589de Turn stuff like: 
icmp slt i32 %X, 0              ; <i1>:0 [#uses=1]
        sext i1 %0 to i32               ; <i32>:1 [#uses=1]

into:

        %X.lobit = ashr i32 %X, 31              ; <i32> [#uses=1]

This implements InstCombine/icmp.ll:test[34]

llvm-svn: 35891
 2007-04-11 06:57:46 +00:00
Chris Lattner
b659c04f13 Simplify some comparisons to arithmetic, this implements: 
Transforms/InstCombine/icmp.ll

llvm-svn: 35890
 2007-04-11 06:53:04 +00:00
Chris Lattner
3ea6010b67 new testcase 
llvm-svn: 35889
 2007-04-11 06:52:24 +00:00
Chris Lattner
1d20292190 Fix this harder. 
llvm-svn: 35888
 2007-04-11 06:50:51 +00:00
Chris Lattner
01ebc25b36 don't create shifts by zero, fix some problems with my previous patch 
llvm-svn: 35887
 2007-04-11 06:43:25 +00:00
Chris Lattner
50a7c8f34e canonicalize (x <u 2147483648) -> (x >s -1) and (x >u 2147483647) -> (x <s 0) 
llvm-svn: 35886
 2007-04-11 06:12:58 +00:00
Chris Lattner
cbd4a7e79c fix a miscompilation of: 
define i32 @test(i32 %X) {
entry:
        %Y = and i32 %X, 4              ; <i32> [#uses=1]
        icmp eq i32 %Y, 0               ; <i1>:0 [#uses=1]
        sext i1 %0 to i32               ; <i32>:1 [#uses=1]
        ret i32 %1
}

by moving code out of commonIntCastTransforms into visitZExt.  Simplify the
APInt gymnastics in it etc.

llvm-svn: 35885
 2007-04-11 05:45:39 +00:00
Chris Lattner
b7448f6187 done 
llvm-svn: 35884
 2007-04-11 05:34:00 +00:00
Chris Lattner
0289490285 Teach the codegen to turn [aez]ext (setcc) -> selectcc of 1/0, which often 
allows other simplifications.  For example, this compiles:
int isnegative(unsigned int X) {
   return !(X < 2147483648U);
}

Into this code:

x86:
        movl 4(%esp), %eax
        shrl $31, %eax
        ret
arm:
        mov r0, r0, lsr #31
        bx lr
thumb:
        lsr r0, r0, #31
        bx lr

instead of:

x86:
        cmpl $0, 4(%esp)
        sets %al
        movzbl %al, %eax
        ret

arm:
        mov r3, #0
        cmp r0, #0
        movlt r3, #1
        mov r0, r3
        bx lr

thumb:
        mov r2, #1
        mov r1, #0
        cmp r0, #0
        blt LBB1_2      @entry
LBB1_1: @entry
        cpy r2, r1
LBB1_2: @entry
        cpy r0, r2
        bx lr

Testcase here: test/CodeGen/Generic/ispositive.ll

llvm-svn: 35883
 2007-04-11 05:32:27 +00:00
Chris Lattner
787c0a4e5b new testcase 
llvm-svn: 35882
 2007-04-11 05:32:13 +00:00
Chris Lattner
3f0e49403c Codegen integer abs more efficiently using the trick from the PPC CWG. This 
improves codegen on many architectures.  Tests committed as CodeGen/*/iabs.ll

X86 Old:			X86 New:
_test:				_test:
   movl 4(%esp), %ecx		   movl 4(%esp), %eax
   movl %ecx, %eax		   movl %eax, %ecx
   negl %eax			   sarl $31, %ecx
   testl %ecx, %ecx		   addl %ecx, %eax
   cmovns %ecx, %eax		   xorl %ecx, %eax
   ret				   ret

PPC Old:			PPC New:
_test:				_test:
   cmpwi cr0, r3, -1		   srawi r2, r3, 31
   neg r2, r3			   add r3, r3, r2
   bgt cr0, LBB1_2 ;		   xor r3, r3, r2
LBB1_1: ;			   blr
   mr r3, r2
LBB1_2: ;
   blr

ARM Old:			ARM New:
_test:				_test:
   rsb r3, r0, #0		   add r3, r0, r0, asr #31
   cmp r0, #0			   eor r0, r3, r0, asr #31
   movge r3, r0			   bx lr
   mov r0, r3
   bx lr

Thumb Old:			Thumb New:
_test:				_test:
   neg r2, r0			   asr r2, r0, #31
   cmp r0, #0			   add r0, r0, r2
   bge LBB1_2			   eor r0, r2
LBB1_1: @			   bx lr
   cpy r0, r2
LBB1_2: @
   bx lr


Sparc Old:			Sparc New:
test:				test:
   save -96, %o6, %o6		   save -96, %o6, %o6
   sethi 0, %l0			   sra %i0, 31, %l0
   sub %l0, %i0, %l0		   add %i0, %l0, %l1
   subcc %i0, -1, %l1		   xor %l1, %l0, %i0
   bg .BB1_2			   restore %g0, %g0, %g0
   nop				   retl
.BB1_1:				   nop
   or %g0, %l0, %i0
.BB1_2:
   restore %g0, %g0, %g0
   retl
   nop

It also helps alpha/ia64 :)

llvm-svn: 35881
 2007-04-11 05:11:38 +00:00
Chris Lattner
e827f7dfe6 new testcases for integer abs function 
llvm-svn: 35880
 2007-04-11 05:02:57 +00:00
Chris Lattner
c7c7a4712e fix a regression introduced by my last patch. 
llvm-svn: 35879
 2007-04-11 03:27:24 +00:00
Chris Lattner
2e1f36a4dc Hack to get sys::Path to recognize macho dylibs. 
llvm-svn: 35878
 2007-04-11 03:15:35 +00:00
Reid Spencer
2792e203c5 For PR1146: 
Put the parameter attributes in their own ParamAttr name space. Adjust the
rest of llvm as a result.

llvm-svn: 35877
 2007-04-11 02:44:20 +00:00
Reid Spencer
caf5a6cbd7 Teach sys::Path how to recognize different kinds of object files for ELF 
and Mach-O systems. Additionally, correct the Mach-O logic code to look at
byte 12 not byte 15. Hopefully this fixes the llvm-ld warning on Darwin.

llvm-svn: 35876
 2007-04-11 02:02:09 +00:00
Chris Lattner
4ea7a156ba Simplify SROA conversion to integer in some ways, make it more general in others. 
We now tolerate small amounts of undefined behavior, better emulating what
would happen if the transaction actually occurred in memory.  This fixes
SingleSource/UnitTests/2007-04-10-BitfieldTest.c on PPC, at least until
Devang gets a chance to fix the CFE from doing undefined things with bitfields :)

llvm-svn: 35875
 2007-04-11 00:57:54 +00:00
Reid Spencer
e580735108 Make isDynamicLibrary detect more than just an ELF file. 
llvm-svn: 35874
 2007-04-11 00:49:39 +00:00
Reid Spencer
a422b454ae Hack the shared library extension for dylib. The existing code just looks 
plain wrong since $module was never defined so we always get .so which is
broken on Darwin. Just force it to .dylib.

llvm-svn: 35873
 2007-04-11 00:33:43 +00:00
Reid Spencer
903e69badf Hopefully fix LTDL_SHLIB_EXT on Darwin 
llvm-svn: 35872
 2007-04-11 00:27:39 +00:00
Bill Wendling
3b1189afbf Add support for our first SSSE3 instruction "pmulhrsw". 
llvm-svn: 35869
 2007-04-10 22:10:25 +00:00
Devang Patel
6d8b1e984b New test case. 
llvm-svn: 35868
 2007-04-10 21:43:01 +00:00
Chris Lattner
60f3ece40f new micro optzn 
llvm-svn: 35867
 2007-04-10 21:14:01 +00:00
Jeff Cohen
8d7aaa4843 Correctly report version of GCC used. 
llvm-svn: 35866
 2007-04-10 19:13:43 +00:00
Devang Patel
4e19c7b1db Add test case for PR 1154. 
llvm-svn: 35865
 2007-04-10 16:57:08 +00:00
Chris Lattner
5af0826c0b fix a comment bug Reid noticed 
llvm-svn: 35864
 2007-04-10 16:33:06 +00:00
Devang Patel
4c310f1c94 Enable loop rotate pass. 
llvm-svn: 35863
 2007-04-10 15:43:36 +00:00
Chris Lattner
f661523670 add missing methods, mark stuff const 
llvm-svn: 35862
 2007-04-10 07:06:21 +00:00
Chris Lattner
da0e61ca4c getLimitedValue now just forward to APInt's getLimitedValue. Mark it const. 
llvm-svn: 35861
 2007-04-10 06:44:12 +00:00
Chris Lattner
9359e7f928 add a method 
llvm-svn: 35860
 2007-04-10 06:43:18 +00:00