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1976 Commits

Author SHA1 Message Date
Chris Lattner
b3d59701c8 Fix a problem that instcombine would hit when dealing with unreachable code. 
Because the instcombine has to scan the entire function when it starts up
to begin with, we might as well do it in DFO so we can nuke unreachable code.

This fixes: Transforms/InstCombine/2005-07-07-DeadPHILoop.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22348 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-07 20:40:38 +00:00
Chris Lattner
6cfd1ebcd3 Fix PR590 and Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll. 
The optimization for locally used allocas was not safe for allocas that
were read before they were written.  This change disables that optimization
in that case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22318 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-30 07:29:44 +00:00
John Criswell
46b8db2ec6 Doh! Forgot to LLVMify the style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22312 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 15:57:50 +00:00
John Criswell
1d231ec0b0 Basic fix for PR#591; don't convert an fprintf() to an fwrite() if there 
is a mismatch in their character type pointers (i.e. fprintf() prints an
array of ubytes while fwrite() takes an array of sbytes).
We can probably do better than this (such as casting the ubyte to an
sbyte).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22310 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 15:03:18 +00:00
Chris Lattner
543a02704e add a debug type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22277 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-24 16:00:46 +00:00
Andrew Lenharth
38b5807bd9 prevent va_arg from being hoisted from a loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22265 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-20 13:36:33 +00:00
Andrew Lenharth
94cd87f658 prevent DCE of vaarg intrinsics. This should take care of most regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22263 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-19 14:41:20 +00:00
Andrew Lenharth
558bc88a00 core changes for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 18:34:52 +00:00
Reid Spencer
134d2e4af8 Fix a problem with the strcmp optimization checking the wrong string and 
not casting to the correct type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22250 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 17:46:28 +00:00
Reid Spencer
4b828e6384 Clean up some uninitialized variables and missing return statements that 
GCC 4.0.0 compiler (sometimes incorrectly) warns about under release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 17:37:34 +00:00
Chris Lattner
e88b7533be This is not true: (X != 13 | X < 15) -> X < 15 
It is actually always true.  This fixes PR586 and
Transforms/InstCombine/2005-06-16-SetCCOrSetCCMiscompile.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22236 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 03:59:17 +00:00
Chris Lattner
5662503afd Don't crash when dealing with INTMIN. This fixes PR585 and 
Transforms/InstCombine/2005-06-16-RangeCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22234 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 02:05:55 +00:00
Chris Lattner
0289929c62 Don't crash on: X = phi (X, X). 
This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22232 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 01:45:53 +00:00
Chris Lattner
d7e31cfaae avoid constructing out of range shift amounts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22230 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 01:29:28 +00:00
Chris Lattner
f9c775c22e Fix PR583 and testcase Transforms/InstCombine/2005-06-15-DivSelectCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-16 04:55:52 +00:00
Chris Lattner
8d7089e1d5 Fix PR571, removing code that does just the WRONG thing :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22225 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-16 03:00:08 +00:00
Chris Lattner
aa457ac2e7 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-16 01:52:07 +00:00
Chris Lattner
d286b245be Fix PR575, patch provided by John Mellor-Crummey. Thanks! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22223 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 22:49:30 +00:00
Chris Lattner
4bd09d70cc Fix PR582. The rewriter can move casts around, which invalidated the 
BB iterator.  This fixes Transforms/IndVarsSimplify/2005-06-15-InstMoveCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22221 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 21:29:31 +00:00
Chris Lattner
553ca52623 Do not promote globals only used by main to locals if there are constantexprs 
or other uses hanging off of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22219 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 21:11:48 +00:00
Chris Lattner
e17a128a55 Fix PR577 and testcase InstCombine/2005-06-15-ShiftSetCCCrash.ll. 
Do not perform undefined out of range shifts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22217 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 20:53:31 +00:00
Reid Spencer
877c3e2b81 Put the hack back in that removes features, causes regressions to fail, but 
allows test programs to succeed. Actual fix for this is forthcoming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22213 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 18:25:30 +00:00
Reid Spencer
16b5644f04 Unbreak several InstCombine regression checks introduced by a hack to 
fix the bzip2 test. A better hack is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22209 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-13 06:41:26 +00:00
Chris Lattner
71fae1022e Fix a 64-bit problem, passing (int)0 through ... instead of (void*)0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22206 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-09 03:32:54 +00:00
Chris Lattner
5633cd13e2 Fix a problem on 64-bit targets where we passed (int)0 through ... instead of 
(void*)0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22205 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-09 02:59:00 +00:00
Andrew Lenharth
837be1ec35 hack to fix bzip2 (bug 571) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22192 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-04 12:43:56 +00:00
Reid Spencer
89026028d1 Make the registration hash_map static. No other module needs it. Also, 
document what its for a little better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22164 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-21 01:27:04 +00:00
Reid Spencer
0660f754df Adjust the file comment to read a little easier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22163 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-21 00:57:44 +00:00
Reid Spencer
b82baf04ec Make sure ... arguments are casted to sbyte* where needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22162 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-21 00:39:30 +00:00
Reid Spencer
5845623148 Add a "brief" comment for CastToCStr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22161 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-21 00:23:23 +00:00
Chris Lattner
9375135999 Fix mismatched type problem that crashed on cases like this: 
sprintf(P, "%s", X);

Where X is not an sbyte*.  This fixes the bug JohnMC reported on llvm-bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22159 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 22:22:25 +00:00
Chris Lattner
42eb7524ef Fix Transforms/SimplifyCFG/switch-simplify-crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22158 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 22:19:54 +00:00
Chris Lattner
49fbff4568 teach the inliner about coldcc and noreturn functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22113 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-18 04:30:33 +00:00
Reid Spencer
c3f6abdd85 Don't look for __builtin_ffs, we'll never see it from llvm-gcc and there's 
not reason to include it for other front ends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22070 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:27:34 +00:00
Reid Spencer
f74eb3fa2a Provide this optimization as well: 
ffs(x) -> (x == 0 ? 0 : 1+llvm.cttz(x))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22068 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 21:19:45 +00:00
Reid Spencer
c64e3e77f9 Duh .. you actually have to #include Config/config.h before you can test 
for one of the values that it defines!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22058 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 17:20:47 +00:00
Reid Spencer
c29b13d648 Changes for ffs lib call simplification: 
* Check for availability of ffsll call in configure script
* Support ffs, ffsl, and ffsll conversion to constant value if the argument
  is constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22027 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 16:42:52 +00:00
Chris Lattner
65af1abd1e Preserve calling conv when hacking on calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22025 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:28:32 +00:00
Chris Lattner
e43702695d preserve calling conventions when hacking on code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22024 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:25:32 +00:00
Chris Lattner
16d0db2da8 Make sure to preserve the calling convention when changing an invoke into 
a call.  This fixes Prolangs-C++/deriv2, kimwitu++, and Misc-C++/bigfib
on X86 with -enable-x86-fastcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:21:56 +00:00
Chris Lattner
08b22ecc88 calling a function with the wrong CC is undefined, turn it into an unreachable 
instruction.  This is useful for catching optimizers that don't preserve
calling conventions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21928 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 07:09:09 +00:00
Chris Lattner
efd9168eae When lowering invokes to calls, amke sure to preserve the calling conv. This 
fixes Ptrdist/anagram with x86 llcbeta


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21925 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 06:27:02 +00:00
Chris Lattner
1381dd8a6e Prefer int 0 instead of long 0 for GEP arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21924 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 06:10:12 +00:00
Chris Lattner
641f02f10f Fix Reassociate/shifttest.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21839 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-10 03:39:25 +00:00
Chris Lattner
7f78f218fd If a function contains no allocas, all of the calls in it are trivially 
suitable for tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21836 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 23:51:13 +00:00
Chris Lattner
6e4c6495eb implement and.ll:test33 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21809 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 04:58:36 +00:00
Chris Lattner
f201dbc1a4 Preserve calling conventions when doing IPO 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21798 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 01:05:50 +00:00
Chris Lattner
c154cef9a1 wrap long lines, preserve calling conventions when cloning functions and 
turning calls into invokes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21797 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 01:04:34 +00:00
Chris Lattner
fb217adf92 Convert non-address taken functions with C calling conventions to fastcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21791 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-08 22:18:06 +00:00
Chris Lattner
44b8c7d5d3 Implement Reassociate/mul-neg-add.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21788 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-08 21:41:35 +00:00