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Author SHA1 Message Date
Chris Lattner
226f919ead avoid constructing out of range shift amounts. 
llvm-svn: 22230
 2005-06-17 01:29:28 +00:00
Nate Begeman
ed49a51836 Fix bug 537 test 2, which checks to make sure that we fold A+(B-A) -> B for 
integer types.  Add a couple checks to not perform these kinds of transform
on floating point values.

llvm-svn: 22228
 2005-06-16 07:06:03 +00:00
Chris Lattner
f95b989825 Fix PR583 and testcase Transforms/InstCombine/2005-06-15-DivSelectCrash.ll 
llvm-svn: 22227
 2005-06-16 04:55:52 +00:00
Chris Lattner
95b9f36fc5 new testcase for PR583 
llvm-svn: 22226
 2005-06-16 04:55:29 +00:00
Chris Lattner
4af04a8d54 Fix PR571, removing code that does just the WRONG thing :) 
llvm-svn: 22225
 2005-06-16 03:00:08 +00:00
Chris Lattner
b99bf21182 Fix a bug in my previous patch. Do not get the shift amount type (which 
is always ubyte, get the type being shifted).  This unbreaks espresso

llvm-svn: 22224
 2005-06-16 01:52:07 +00:00
Chris Lattner
4cff3f786f Fix PR575, patch provided by John Mellor-Crummey. Thanks! 
llvm-svn: 22223
 2005-06-15 22:49:30 +00:00
Chris Lattner
a3f66fc00f new testcase for PR580 
llvm-svn: 22222
 2005-06-15 22:42:53 +00:00
Chris Lattner
f1369e9532 Fix PR582. The rewriter can move casts around, which invalidated the 
BB iterator.  This fixes Transforms/IndVarsSimplify/2005-06-15-InstMoveCrash.ll

llvm-svn: 22221
 2005-06-15 21:29:31 +00:00
Chris Lattner
ec6628efb7 new testcase for PR582 
llvm-svn: 22220
 2005-06-15 21:28:55 +00:00
Chris Lattner
369ba5da69 Do not promote globals only used by main to locals if there are constantexprs 
or other uses hanging off of them.

llvm-svn: 22219
 2005-06-15 21:11:48 +00:00
Chris Lattner
8f5ef2dfd9 new testcase for PR579 
llvm-svn: 22218
 2005-06-15 21:11:18 +00:00
Chris Lattner
d553048155 Fix PR577 and testcase InstCombine/2005-06-15-ShiftSetCCCrash.ll. 
Do not perform undefined out of range shifts.

llvm-svn: 22217
 2005-06-15 20:53:31 +00:00
Chris Lattner
8c3a424fb0 new testcase for PR577 
llvm-svn: 22216
 2005-06-15 20:52:39 +00:00
Reid Spencer
0628cd9f1b Don't lie to the casual reader about Value subclassing from Annotable. 
llvm-svn: 22215
 2005-06-15 18:40:45 +00:00
Nate Begeman
68cd6aa245 Add some operators the PowerPC backend needs to efficiently and correctly 
generate conditional branches.

llvm-svn: 22214
 2005-06-15 18:28:44 +00:00
Reid Spencer
3a30fa7ec0 Put the hack back in that removes features, causes regressions to fail, but 
allows test programs to succeed. Actual fix for this is forthcoming.

llvm-svn: 22213
 2005-06-15 18:25:30 +00:00
Nate Begeman
12cd2d8d99 Commit fix for generating conditional branch pseudo instructions that 
avoids dereferencing the end() iterator when selecting the fallthrough
block.  This requires an ilist change.

llvm-svn: 22212
 2005-06-15 18:22:43 +00:00
Duraid Madina
658618d1e4 nothing funny about building the CFE on Linux/Itanium 
llvm-svn: 22211
 2005-06-14 07:29:50 +00:00
Nate Begeman
9bb1be2eec Commit a small improvement that is already in the x86 and ia64 backends to 
not generate unnecessary register copies.  This improves compile time by
2-5% depending on the test.

llvm-svn: 22210
 2005-06-14 03:55:23 +00:00
Reid Spencer
202eb6ff93 Unbreak several InstCombine regression checks introduced by a hack to 
fix the bzip2 test. A better hack is needed.

llvm-svn: 22209
 2005-06-13 06:41:26 +00:00
Nate Begeman
a2f68cf0f9 When compiled with GCC 4.0, a latent bug was exposed where both SparcV9 
and the target independant register allocator were both using a class named
'LiveRange'.  This lead to the target independant code calling code in the
SparcV9 backend, which crashed.  Fixed by renaming SparcV9's LiveRange to
V9LiveRange.

llvm-svn: 22208
 2005-06-12 23:52:58 +00:00
Nate Begeman
f516b866e5 Fix a memory smasher caught by Mac OS X's debug malloc library. We were 
incorrectly using an iterator after it was invalid.

llvm-svn: 22207
 2005-06-12 23:50:33 +00:00
Chris Lattner
9d3c2260d0 Fix a 64-bit problem, passing (int)0 through ... instead of (void*)0 
llvm-svn: 22206
 2005-06-09 03:32:54 +00:00
Chris Lattner
092a738e18 Fix a problem on 64-bit targets where we passed (int)0 through ... instead of 
(void*)0.

llvm-svn: 22205
 2005-06-09 02:59:00 +00:00
Andrew Lenharth
167120f2b7 make SparcV8 and V9 seperately configurable 
llvm-svn: 22204
 2005-06-08 22:32:51 +00:00
Andrew Lenharth
ec1d1444bd fix BranchCC with a setCC with an arg of 0 
llvm-svn: 22203
 2005-06-08 18:02:21 +00:00
Reid Spencer
a88b91d681 For PR572: 
Undefine the PPC symbol which is defined by Linux/PPC (erroneously) so it
doesn't pollute the user namespace and clash with our namespace declarations.

llvm-svn: 22202
 2005-06-08 17:44:48 +00:00
Nate Begeman
47cd13d42a Handle some more real world cases of rlwimi. These don't come up that 
regularly in "normal" code, but for things like software graphics, they
make a big difference.

For the following code:
unsigned short Trans16Bit(unsigned srcA,unsigned srcB,unsigned alpha)
{
	unsigned tmpA,tmpB,mixed;
	tmpA = ((srcA & 0x03E0) << 15) | (srcA & 0x7C1F);
	tmpB = ((srcB & 0x03E0) << 15) | (srcB & 0x7C1F);
	mixed = (tmpA * alpha) + (tmpB * (32 - alpha));
	return ((mixed >> 5) & 0x7C1F) | ((mixed >> 20) & 0x03E0);
}

We now generate:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        andi. r2, r4, 31775
        rlwimi r2, r4, 15, 7, 11
        subfic r4, r5, 32
        mullw r2, r2, r4
        andi. r4, r3, 31775
        rlwimi r4, r3, 15, 7, 11
        mullw r3, r4, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        rlwimi r3, r2, 12, 22, 26
        blr

Instead of:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        slwi r2, r4, 15
        rlwinm r2, r2, 0, 7, 11
        andi. r4, r4, 31775
        or r2, r2, r4
        subfic r4, r5, 32
        mullw r2, r2, r4
        slwi r4, r3, 15
        rlwinm r4, r4, 0, 7, 11
        andi. r3, r3, 31775
        or r3, r4, r3
        mullw r3, r3, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        srwi r2, r2, 20
        rlwimi r3, r2, 0, 22, 26
        blr

llvm-svn: 22201
 2005-06-08 04:14:27 +00:00
Nate Begeman
023a21ea32 Fix lli linking on Mac OS X 10.4.1 for Intel. 
llvm-svn: 22200
 2005-06-08 01:02:38 +00:00
Andrew Lenharth
e6b85af482 Remove code for conversion from old style va_args. Preparing the way for 
returning to the old style :)

llvm-svn: 22199
 2005-06-08 00:49:08 +00:00
Misha Brukman
fb764f1829 We also have V8, so do not force every Sparc to be treated like a V9. It is 
still possible to force V9 (even if configure doesn't think it's one) via
``./configure --target=sparcv9-sun-solaris2.8'' so nothing is lost.

llvm-svn: 22198
 2005-06-06 19:29:36 +00:00
Misha Brukman
e83aaca645 * Add ability to specify the target LLVM will compile for via configure 
* Minor whitespace cleanups

llvm-svn: 22197
 2005-06-06 19:17:05 +00:00
Misha Brukman
49f75fc763 Fix spelling of `correlate' 
llvm-svn: 22196
 2005-06-06 19:08:04 +00:00
Andrew Lenharth
03f6e6dbb6 allow marking of loads and stores in the instruction stream with enough information to reconstruct the Value* if it existed 
llvm-svn: 22195
 2005-06-06 19:03:55 +00:00
Andrew Lenharth
7ae4989a1f hide basic block labels. The utility of these for debuging is long since passed 
llvm-svn: 22194
 2005-06-06 19:03:09 +00:00
Misha Brukman
c1841dd82f * Replace block of commented-out lines with #if 0 
* Remove warning "control reaches end of non-void function"

llvm-svn: 22193
 2005-06-06 17:39:46 +00:00
Andrew Lenharth
e68b566084 hack to fix bzip2 (bug 571) 
llvm-svn: 22192
 2005-06-04 12:43:56 +00:00
Reid Spencer
ba5ae90ec8 Fix the definitions of LLVMGCC and LLVMGXX to include the EXEEXT (the 
.exe extension) on Cygwin. This fixes the last few remaining Cygwin
issues. Thanks to Aaron Gray for tracking this down.

llvm-svn: 22191
 2005-06-02 22:34:49 +00:00
Reid Spencer
966f750ad2 Make sure that Cygwin assembly includes _ as part of function names. 
llvm-svn: 22190
 2005-06-02 21:33:19 +00:00
Reid Spencer
2d5d7084ba Put in a hack for Cygwin that prevents mkdtemp from being used since 
configure seems to find it on Cygwin but linking against it fails.

llvm-svn: 22189
 2005-06-02 05:38:20 +00:00
Andrew Lenharth
d8c567af19 try custom expanders, doesn't seem to expand yet, so disabled 
llvm-svn: 22188
 2005-05-31 19:49:34 +00:00
Andrew Lenharth
ca6fa6fac6 switch to the new live in thing. Really, this time it works 
llvm-svn: 22187
 2005-05-31 18:42:18 +00:00
Andrew Lenharth
0cac09ef6c switch to the new live in thing 
llvm-svn: 22186
 2005-05-31 18:37:16 +00:00
Andrew Lenharth
083ba1ead1 switch to the new live in thing 
llvm-svn: 22185
 2005-05-31 18:35:43 +00:00
Reid Spencer
cccc417f16 Make sure the tools get built if no build target is specified. 
llvm-svn: 22184
 2005-05-29 00:49:24 +00:00
Andrew Lenharth
8fec24bb7d match gcc, makes diff easier 
llvm-svn: 22179
 2005-05-27 03:39:30 +00:00
Andrew Lenharth
4062a79a81 Fix 2005-05-12-Int64ToFP 
The issue is there is no unsigned -> double conversion, only signed.  So I
need to test the sign and do a different thing depending on it.  Ideally
this should be in a different BB, but in the mean time, I use a branch
free method.

llvm-svn: 22177
 2005-05-26 18:18:34 +00:00
Misha Brukman
86ecb42fa0 Add a -cvstag option for testing specific branches, such as release candidates 
llvm-svn: 22176
 2005-05-26 16:28:55 +00:00
Reid Spencer
fbf2caa005 Add a "libs-only" target for avoiding construction of the tools and 
runtime libraries.

llvm-svn: 22169
 2005-05-25 21:03:17 +00:00