a8e84fb56b
Turn cos(-x) into cos(x). Patch by Alexander Malyshev!
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llvm-svn: 147291
2011-12-27 18:25:50 +00:00
f1fd6e394d
Give string constants generated by IRBuilder private linkage.
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Fixes PR11640.
llvm-svn: 147144
2011-12-22 14:22:14 +00:00
45c4164166
Only replace fwrite with fputc, if the return value is unused.
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llvm-svn: 146411
2011-12-12 20:18:31 +00:00
489c0ff4a4
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
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names for fwrite and fputs.
Fixes <rdar://problem/9815881>.
llvm-svn: 144876
2011-11-17 01:27:36 +00:00
594ee77964
SimplifyLibCalls: Use IRBuilder.CreateGlobalString when creating a string for printf->puts, which correctly sets the unnamed_addr bit on the resulting GlobalVariable.
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Fixes PR11264.
llvm-svn: 143289
2011-10-29 19:43:31 +00:00
462098824f
"@string = constant i8 0" is a value i8* string of length zero. Analyze that
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correctly in GetStringLength, fixing PR11181!
llvm-svn: 142558
2011-10-20 00:34:35 +00:00
e7594abd87
Fixed quoting on default data layout option.
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llvm-svn: 142286
2011-10-17 21:54:43 +00:00
3e3aecbc2c
PR11061: Make simplifylibcalls fold strcmp("", x) correctly.
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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.
llvm-svn: 141227
2011-10-05 22:27:16 +00:00
547b6c5ecd
Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.
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If someone prefers %tmp42 to %42, run instnamer.
llvm-svn: 140634
2011-09-27 20:39:19 +00:00
02e737b08e
Move "atomic" and "volatile" designations on instructions after the opcode
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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.
llvm-svn: 137527
2011-08-12 22:50:01 +00:00
80ed9dc9e5
rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is
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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.
llvm-svn: 133337
2011-06-18 06:05:24 +00:00
13f8c7d48e
Preserve line number information while simplifying libcalls.
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llvm-svn: 127362
2011-03-09 21:27:52 +00:00
af52c52569
Optimize fprintf -> iprintf if there are no floating point arguments
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and siprintf is available on the target.
llvm-svn: 126940
2011-03-03 14:20:22 +00:00
2dfb888392
Optimize sprintf -> siprintf if there are no floating point arguments
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and siprintf is available on the target.
llvm-svn: 126937
2011-03-03 14:09:28 +00:00
815de536e5
Optimize printf -> iprintf if there are no floating point arguments
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and iprintf is available on the target. Currently iprintf is only
marked as being available on the XCore.
llvm-svn: 126935
2011-03-03 13:17:51 +00:00
6564ca0c23
Delete obsolete test.
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llvm-svn: 126680
2011-02-28 19:58:14 +00:00
210ce0feb5
SimplifyLibCalls: Add missing legalize check on various printf to puts and
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putchar transforms, their return values are not compatible.
llvm-svn: 125442
2011-02-12 18:19:57 +00:00
76c95562bc
tests: FileCheckize
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llvm-svn: 125441
2011-02-12 18:19:53 +00:00
93dc2b808f
Revert r64460. strtol and friends cannot be marked readonly, even with
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a null endptr argument, because they may write to errno.
This fixes a seflhost miscompile observed on Linux targets when TBAA
was enabled.
llvm-svn: 122014
2010-12-17 01:09:43 +00:00
e3ea1cba79
Add a puts optimization that converts puts() to putchar('\n').
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llvm-svn: 120398
2010-11-30 06:19:18 +00:00
77e9892afd
Fix a typo.
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llvm-svn: 120394
2010-11-30 06:03:55 +00:00
631d06bbce
Rename this test to FPuts.ll since it actually tests fputs.
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llvm-svn: 120393
2010-11-30 05:59:26 +00:00
e6840ef4b3
Fix some broken CHECK lines.
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llvm-svn: 120332
2010-11-29 22:34:55 +00:00
959807fa37
test/Transforms/SimplifyLibCalls/floor.ll: Mark as XFAIL:win32 due to lack of nearbyintf on MSVC. [PR8466]
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llvm-svn: 117529
2010-10-28 06:46:04 +00:00
2b76c66fd6
Add constant folding for strspn and strcspn to SimplifyLibCalls.
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llvm-svn: 115116
2010-09-30 00:58:35 +00:00
38d22f69fc
Add strpbrk folding to SimplifyLibCalls.
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llvm-svn: 115111
2010-09-29 23:52:12 +00:00
8e861d7eee
Simplify the loop in StrChrOptimizer. FileCheckize test.
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llvm-svn: 115095
2010-09-29 22:29:12 +00:00
824645abc9
Teach SimplifyLibCalls how to optimize strrchr.
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llvm-svn: 115091
2010-09-29 21:50:51 +00:00
a20e2dfe86
Make sure that simplify libcalls does not replace a call with one calling
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convention with a new call with a different calling convention.
llvm-svn: 106134
2010-06-16 19:34:01 +00:00
a13bd20396
simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1)
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The memcmp will be optimized further and even the pathological case
'strstr(x, "x") == x' generates optimal code now.
llvm-svn: 106097
2010-06-16 10:30:29 +00:00
1118860e3a
simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0
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llvm-svn: 106047
2010-06-15 21:34:25 +00:00
aee2632be3
The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
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first. Fixes PR7265.
llvm-svn: 105206
2010-05-31 06:16:35 +00:00
9439084cea
Properly promote operands when optimizing a single-character memcmp.
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llvm-svn: 104648
2010-05-25 22:53:43 +00:00
c576ee9040
Reapply address space patch after fixing an issue in MemCopyOptimizer.
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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)
llvm-svn: 100304
2010-04-04 03:10:48 +00:00
999c1b927b
Revert r100191 since it breaks objc in clang
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llvm-svn: 100199
2010-04-02 18:43:02 +00:00
a972ab8564
Reapply address space patch after fixing an issue in MemCopyOptimizer.
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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)
llvm-svn: 100191
2010-04-02 18:04:15 +00:00
6f7fd28824
Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
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llvm-svn: 99948
2010-03-30 22:27:04 +00:00
7460571381
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
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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.
llvm-svn: 99928
2010-03-30 20:55:56 +00:00
d9e822345c
Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream.
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llvm-svn: 99282
2010-03-23 15:48:04 +00:00
a7fb58f5f5
Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub
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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.
llvm-svn: 97875
2010-03-06 10:50:38 +00:00
d214ed0e75
Safely turn memset_chk etc. to non-chk variant if the known object size is >= memset / memcpy / memmove size.
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llvm-svn: 97828
2010-03-05 20:59:47 +00:00
d86233c118
Recommit this, looks like it wasn't the cause.
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llvm-svn: 95165
2010-02-03 00:21:58 +00:00
e67d01a9a8
Hopefully temporarily revert this.
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llvm-svn: 95154
2010-02-02 23:01:31 +00:00
4264e7e46f
Re-add strcmp and known size object size checking optimization.
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Passed bootstrap and nightly test run here.
llvm-svn: 95145
2010-02-02 22:10:43 +00:00
5a0e174863
Revert my last couple of patches. They appear to have broken bison.
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llvm-svn: 94841
2010-01-29 21:16:24 +00:00
9b3c02b7da
Make strcpy_chk lower to strcpy if we have a safe size.
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llvm-svn: 94783
2010-01-29 01:37:11 +00:00
1a32ede6fd
move an optimization for memcmp out of simplifylibcalls and into
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SDISel. This optimization was causing simplifylibcalls to
introduce type-unsafe nastiness. This is the first step, I'll be
expanding the memcmp optimizations shortly, covering things that
we really really wouldn't want simplifylibcalls to do.
llvm-svn: 92098
2009-12-24 00:37:38 +00:00
f278addbdc
reapply my strstr optimization. I have reproduced the x86-64 bootstrap
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miscompile (i386.o miscompares) but it happens both with and without
this patch.
llvm-svn: 91532
2009-12-16 09:32:05 +00:00
177be32334
revert my strstr optimization, I'm told it breaks x86-64 bootstrap.
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Will reapply with a fix when I get a chance.
llvm-svn: 91486
2009-12-16 00:46:02 +00:00
26ab363361
optimize strstr, PR5783
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llvm-svn: 91438
2009-12-15 19:14:40 +00:00
Nick Lewycky