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Author SHA1 Message Date
Chris Lattner
f742e2fe70 Arm supports negative strides as well, add them. This lets us compile: 
CodeGen/ARM/arm-negative-stride.ll to:

LBB1_2: @bb
        str r1, [r3, -r0, lsl #2]
        add r0, r0, #1
        cmp r0, r2
        bne LBB1_2      @bb

llvm-svn: 35609
 2007-04-03 00:13:57 +00:00
Chris Lattner
67f99e955b new testcase, where we should use a negative stride 
llvm-svn: 35608
 2007-04-03 00:13:16 +00:00
Chris Lattner
f3197a7d53 allow -1 strides to reuse "1" strides. 
llvm-svn: 35607
 2007-04-02 22:51:58 +00:00
Chris Lattner
d9eb0d9f5a Add a regtest for cases we now recognize as rotates, thanks to Scott Michel's 
recent dagcombine patch

llvm-svn: 35606
 2007-04-02 22:08:54 +00:00
Scott Michel
16627a542f 1. Insert custom lowering hooks for ISD::ROTR and ISD::ROTL. 
2. Help DAGCombiner recognize zero/sign/any-extended versions of ROTR and ROTL
patterns. This was motivated by the X86/rotate.ll testcase, which should now
generate code for other platforms (and soon-to-come platforms.) Rewrote code
slightly to make it easier to read.

llvm-svn: 35605
 2007-04-02 21:36:32 +00:00
Chris Lattner
a7152a90d1 fix this testcase so it passes 
llvm-svn: 35604
 2007-04-02 20:46:28 +00:00
Chris Lattner
dd59227a73 fix this testcase on ppc hosts 
llvm-svn: 35603
 2007-04-02 20:39:48 +00:00
Dale Johannesen
d13786dd82 fix off by 1 error in displacement computation 
llvm-svn: 35602
 2007-04-02 20:31:06 +00:00
Chris Lattner
8e168a4f36 fix the CodeGen/ARM/2007-03-13-InstrSched.ll regression: allow IV's with scales 
to be folded into non-store instructions.

llvm-svn: 35601
 2007-04-02 18:51:18 +00:00
Evan Cheng
476fb6a5c9 Ugh. Copy coalescer does not update register numbers. 
llvm-svn: 35600
 2007-04-02 18:49:18 +00:00
Evan Cheng
f7f8e349d6 New test case. 
llvm-svn: 35599
 2007-04-02 18:47:13 +00:00
Chris Lattner
6223e83f6d add support for the 'w' inline asm register class. 
llvm-svn: 35598
 2007-04-02 17:24:08 +00:00
Devang Patel
eb44d8fb19 Update example notes to clarify system linker's role. 
llvm-svn: 35597
 2007-04-02 16:54:12 +00:00
Reid Spencer
3b40d3887b Regenerate. 
llvm-svn: 35596
 2007-04-02 15:41:39 +00:00
Reid Spencer
18c121d55d Check for .svn directories too to determine if a debug build is appropriate. 
llvm-svn: 35595
 2007-04-02 15:40:39 +00:00
Zhou Sheng
9bc8ab100d 1. Make use of APInt operation instead of using ConstantExpr::getXXX. 
2. Use cheaper APInt methods.

llvm-svn: 35594
 2007-04-02 13:45:30 +00:00
Zhou Sheng
56cda95658 Use uint32_t for bitwidth instead of unsigned. 
llvm-svn: 35593
 2007-04-02 08:20:41 +00:00
Chris Lattner
28e0e4e11e Pass the type of the store access, not the type of the store, into the 
target hook.  This allows us to codegen a loop as:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0, +r3, lsl #2]
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

instead of:

LBB1_1: @cond_next
        mov r2, #0
        str r2, [r0], #+4
        add r3, r3, #1
        cmn r3, #1
        bne LBB1_1      @cond_next

This looks the same, but has one fewer induction variable (and therefore,
one fewer register) live in the loop.

llvm-svn: 35592
 2007-04-02 06:34:44 +00:00
Chris Lattner
be96c646dc new testcase. 
llvm-svn: 35591
 2007-04-02 06:33:10 +00:00
Chris Lattner
3e21eb7fd7 Fix a bug which caused us to never be able to use signed comparisons for 
equality comparisons of a constant.  This allows us to codegen the 'sintzero'
loop in PR1288 as:

LBB1_1: ;cond_next
        li r4, 0
        addi r2, r2, 1
        stw r4, 0(r3)
        addi r3, r3, 4
        cmpwi cr0, r2, -1
        bne cr0, LBB1_1 ;cond_next

instead of:

LBB1_1: ;cond_next
        addi r2, r2, 1
        li r4, 0
        xoris r5, r2, 65535
        stw r4, 0(r3)
        addi r3, r3, 4
        cmplwi cr0, r5, 65535
        bne cr0, LBB1_1 ;cond_next

This implements CodeGen/PowerPC/compare-simm.ll, and also cuts 74
instructions out of kc++.

llvm-svn: 35590
 2007-04-02 05:59:42 +00:00
Chris Lattner
745f59bfde new testcase 
llvm-svn: 35589
 2007-04-02 05:57:59 +00:00
Chris Lattner
9d5aacee92 Wrap long line 
llvm-svn: 35588
 2007-04-02 05:48:58 +00:00
Chris Lattner
50490d54f2 use more obvious function name. 
llvm-svn: 35587
 2007-04-02 05:42:22 +00:00
Chris Lattner
a3e0bb4ebb Treat xor of signbit like an add. 
llvm-svn: 35586
 2007-04-02 05:41:38 +00:00
Chris Lattner
d14447833a add a helper function. 
llvm-svn: 35585
 2007-04-02 05:41:00 +00:00
Chris Lattner
b24acc7bee simplify (x+c)^signbit as (x+c+signbit), pointed out by PR1288. This implements 
test/Transforms/InstCombine/xor.ll:test28

llvm-svn: 35584
 2007-04-02 05:36:22 +00:00
Chris Lattner
2d81c6d706 creative way to add one. 
llvm-svn: 35583
 2007-04-02 05:35:08 +00:00
Chris Lattner
0a844d8df1 my patch fixed the fixme. 
llvm-svn: 35582
 2007-04-02 05:08:54 +00:00
Reid Spencer
e51961b5ba Fix illegal assembly syntax. 
llvm-svn: 35581
 2007-04-02 03:24:47 +00:00
Reid Spencer
f361c4f4f8 bwsap -> bswap 
llvm-svn: 35580
 2007-04-02 02:25:19 +00:00
Reid Spencer
69e56c3461 Regenerate 
llvm-svn: 35579
 2007-04-02 02:08:35 +00:00
Reid Spencer
940fccb088 Upgrade the bit count intrinsics to have an i32 result. 
llvm-svn: 35578
 2007-04-02 02:08:05 +00:00
Reid Spencer
a3bc850712 Add a test case to make sure that constant folding of the bit counting 
intrinsics works.

llvm-svn: 35577
 2007-04-02 01:45:31 +00:00
Chris Lattner
b7b75145f1 reduce use of std::set 
llvm-svn: 35576
 2007-04-02 01:44:59 +00:00
Chris Lattner
c3748562bd Various passes before isel split edges and do other CFG-restructuring changes. 
isel has its own particular features that it wants in the CFG, in order to
reduce the number of times a constant is computed, etc.  Make sure that we
clean up the CFG before doing any other things for isel.  Doing so can
dramatically reduce the number of split edges and reduce the number of
places that constants get computed.  For example, this shrinks
CodeGen/Generic/phi-immediate-factoring.ll from 44 to 37 instructions on X86,
and from 21 to 17 MBB's in the output.  This is primarily a code size win,
not a performance win.

This implements CodeGen/Generic/phi-immediate-factoring.ll and PR1296.

llvm-svn: 35575
 2007-04-02 01:35:34 +00:00
Chris Lattner
4cb30067c2 new testcase for PR1296 
llvm-svn: 35574
 2007-04-02 01:32:59 +00:00
Lauro Ramos Venancio
6be85337b0 - Divides the comparisons in two types: comparisons that only use N and Z 
flags (ARMISD::CMPNZ) and comparisons that use all flags (ARMISD::CMP).
- Defines the instructions: TST, TEQ (ARM) and TST (Thumb).

llvm-svn: 35573
 2007-04-02 01:30:03 +00:00
Chris Lattner
7c773e6850 add range version of insert() 
llvm-svn: 35572
 2007-04-02 01:21:19 +00:00
Reid Spencer
1bd88bdab3 Regenerate 
llvm-svn: 35571
 2007-04-02 01:14:00 +00:00
Reid Spencer
86207ee54d Don't upgrade functions that look like a bswap intrinsic but aren't. 
llvm-svn: 35570
 2007-04-02 01:13:36 +00:00
Reid Spencer
84c90a9431 Let llvm-upgrade upgrade the bswap intrinsic. 
llvm-svn: 35569
 2007-04-02 01:09:19 +00:00
Reid Spencer
0b544372d4 Let llvm-upgrade upgrade bswap intrinsic. 
llvm-svn: 35568
 2007-04-02 01:08:02 +00:00
Reid Spencer
fad9bd6b92 For PR1297: 
Make sure that the CTPOP result is casted to i32 as the bit counting
intrinsics all return i32 now (this affects CTLZ and CTTZ as well).

llvm-svn: 35567
 2007-04-02 01:01:49 +00:00
Reid Spencer
a5f996bd27 Revert the name changes for llvm.bswap to allow (and test) llvm-upgrade of 
this intrinsic.

llvm-svn: 35566
 2007-04-02 00:51:15 +00:00
Reid Spencer
ef592214e2 Handle upgrade of llvm.bswap.iXX to llvm.bswap.iXX.iXX per new naming 
rules for overloaded intrinsic functions.

llvm-svn: 35565
 2007-04-02 00:50:28 +00:00
Reid Spencer
403a1c4517 Fix some bswap typos that Chris noticed. 
llvm-svn: 35564
 2007-04-02 00:19:52 +00:00
Chris Lattner
8fe3cbe6bd print the type of an inserted IV in -debug mode. 
llvm-svn: 35563
 2007-04-01 22:21:39 +00:00
Anton Korobeynikov
ecc769e4f2 Add testcase for correct sret handling. 
llvm-svn: 35562
 2007-04-01 22:03:04 +00:00
Chris Lattner
c3eeb42809 simplify this code, make it work for ap ints 
llvm-svn: 35561
 2007-04-01 20:57:36 +00:00
Chris Lattner
59a6fa7af6 fix breakage from last night, simplify code. 
llvm-svn: 35560
 2007-04-01 20:49:36 +00:00