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23e75da7e0
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161 Commits

Author SHA1 Message Date
Nuno Lopes
23e75da7e0 revert my previous patches that introduced an additional parameter to the objectsize intrinsic. 
After a lot of discussion, we realized it's not the best option for run-time bounds checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157255 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-22 15:25:31 +00:00
Joel Jones
9e02e2cd0c FileCheck-ify, apropos of nothing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157051 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-18 16:24:01 +00:00
David Majnemer
ac78266674 Teach SimplifyLibCalls about stpcpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156815 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-15 11:46:21 +00:00
Nuno Lopes
30759542aa change the objectsize intrinsic signature: add a 3rd parameter to denote the maximum runtime performance penalty that the user is willing to accept. 
This commit only adds the parameter. Code taking advantage of it will follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156473 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-09 15:52:43 +00:00
Joe Groff
41c3e9a326 FileCheckify, un-XFAIL SimplifyLibCalls/floor test 
Fixes build on MSVC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154970 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-18 00:36:07 +00:00
Joe Groff
d15c581100 Move win32 SimplifyLibcall test under Transforms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154967 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-18 00:07:45 +00:00
Eli Bendersky
0f0c411079 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 06:28:33 +00:00
Nick Lewycky
a6b21ea4ba Turn cos(-x) into cos(x). Patch by Alexander Malyshev! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147291 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 18:25:50 +00:00
Benjamin Kramer
b143ea3739 Give string constants generated by IRBuilder private linkage. 
Fixes PR11640.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147144 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 14:22:14 +00:00
Joerg Sonnenberger
127a669d09 Only replace fwrite with fputc, if the return value is unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146411 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-12 20:18:31 +00:00
Eli Friedman
9d434dbff3 Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom 
names for fwrite and fputs.

Fixes <rdar://problem/9815881>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144876 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-17 01:27:36 +00:00
Benjamin Kramer
59e43bde28 SimplifyLibCalls: Use IRBuilder.CreateGlobalString when creating a string for printf->puts, which correctly sets the unnamed_addr bit on the resulting GlobalVariable. 
Fixes PR11264.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143289 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-29 19:43:31 +00:00
Nick Lewycky
0cd0fee91e "@string = constant i8 0" is a value i8* string of length zero. Analyze that 
correctly in GetStringLength, fixing PR11181!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-20 00:34:35 +00:00
Lang Hames
f2ddbcdcb9 Fixed quoting on default data layout option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142286 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 21:54:43 +00:00
Eli Friedman
792860883e PR11061: Make simplifylibcalls fold strcmp("", x) correctly. 
While I'm here, fix the related issue with strncmp, add some actual tests for strcmp and strncmp, and start using StringRef::compare for constant folding instead of using strcmp/strncmp so that the optimized IR isn't dependent on the host's implementation of strcmp.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141227 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-05 22:27:16 +00:00
Benjamin Kramer
a9390a4d5f Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit. 
If someone prefers %tmp42 to %42, run instnamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140634 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-27 20:39:19 +00:00
Eli Friedman
f03bb260c9 Move "atomic" and "volatile" designations on instructions after the opcode 
of the instruction.

Note that this change affects the existing non-atomic load and store
instructions; the parser now accepts both forms, and the change is noted
in the release notes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137527 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 22:50:01 +00:00
Chris Lattner
b85e4eba85 rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is 
for pre-2.9 bitcode files.  We keep x86 unaligned loads, movnt, crc32, and the
target indep prefetch change.

As usual, updating the testsuite is a PITA.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-18 06:05:24 +00:00
Devang Patel
a2ab3999ed Preserve line number information while simplifying libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127362 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-09 21:27:52 +00:00
Richard Osborne
022708f221 Optimize fprintf -> iprintf if there are no floating point arguments 
and siprintf is available on the target.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126940 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 14:20:22 +00:00
Richard Osborne
419454ad37 Optimize sprintf -> siprintf if there are no floating point arguments 
and siprintf is available on the target.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126937 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 14:09:28 +00:00
Richard Osborne
3649824bec Optimize printf -> iprintf if there are no floating point arguments 
and iprintf is available on the target. Currently iprintf is only
marked as being available on the XCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126935 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 13:17:51 +00:00
Dan Gohman
a722e781cc Delete obsolete test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126680 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-28 19:58:14 +00:00
Daniel Dunbar
d02be24cad SimplifyLibCalls: Add missing legalize check on various printf to puts and 
putchar transforms, their return values are not compatible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125442 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-12 18:19:57 +00:00
Daniel Dunbar
43186a4ea9 tests: FileCheckize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125441 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-12 18:19:53 +00:00
Dan Gohman
c32046e6ea Revert r64460. strtol and friends cannot be marked readonly, even with 
a null endptr argument, because they may write to errno.

This fixes a seflhost miscompile observed on Linux targets when TBAA
was enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122014 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:09:43 +00:00
Anders Carlsson
303023d9ff Add a puts optimization that converts puts() to putchar('\n'). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 06:19:18 +00:00
Anders Carlsson
1d06295583 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 06:03:55 +00:00
Anders Carlsson
2703399041 Rename this test to FPuts.ll since it actually tests fputs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 05:59:26 +00:00
Benjamin Kramer
8ad87ab166 Fix some broken CHECK lines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:34:55 +00:00
NAKAMURA Takumi
abd9e01baf test/Transforms/SimplifyLibCalls/floor.ll: Mark as XFAIL:win32 due to lack of nearbyintf on MSVC. [PR8466] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 06:46:04 +00:00
Benjamin Kramer
9510a2538b Add constant folding for strspn and strcspn to SimplifyLibCalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115116 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 00:58:35 +00:00
Benjamin Kramer
05f585e28b Add strpbrk folding to SimplifyLibCalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:52:12 +00:00
Benjamin Kramer
e260990fa1 Simplify the loop in StrChrOptimizer. FileCheckize test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 22:29:12 +00:00
Benjamin Kramer
06f25cfb33 Teach SimplifyLibCalls how to optimize strrchr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:50:51 +00:00
Rafael Espindola
e96af56a5b Make sure that simplify libcalls does not replace a call with one calling 
convention with a new call with a different calling convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 19:34:01 +00:00
Benjamin Kramer
ea9ca0236d simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1) 
The memcmp will be optimized further and even the pathological case
'strstr(x, "x") == x' generates optimal code now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 10:30:29 +00:00
Benjamin Kramer
386e918438 simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 21:34:25 +00:00
Nick Lewycky
a9d6680cb1 The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that 
first. Fixes PR7265.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-31 06:16:35 +00:00
Benjamin Kramer
48aefe15d0 Properly promote operands when optimizing a single-character memcmp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 22:53:43 +00:00
Mon P Wang
20adc9dc46 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-04 03:10:48 +00:00
Mon P Wang
e754d3fb85 Revert r100191 since it breaks objc in clang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-02 18:43:02 +00:00
Mon P Wang
e33c848fa4 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-02 18:04:15 +00:00
Bob Wilson
100f090add Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 22:27:04 +00:00
Mon P Wang
808bab0169 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:55:56 +00:00
Evan Cheng
0289b419a4 Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 15:48:04 +00:00
Eric Christopher
27ceaa13f8 Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub 
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 10:50:38 +00:00
Evan Cheng
a79eb387ac Safely turn memset_chk etc. to non-chk variant if the known object size is >= memset / memcpy / memmove size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97828 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 20:59:47 +00:00
Eric Christopher
0c6a8f9eda Recommit this, looks like it wasn't the cause. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95165 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 00:21:58 +00:00
Eric Christopher
9f34dd305b Hopefully temporarily revert this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:01:31 +00:00