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Geoff Berry 06c9dc3d9c [SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno 
Summary:
This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU
target triples.  This optimization was being inhibited when -ffast-math
wasn't set because sincos in GLibC does not set errno, while sin and cos
do.  However, this optimization will only run if the attributes on the
sin/cos calls include readnone, which is how clang represents the fact
that it doesn't care about the errno values set by these functions (via
the -fno-math-errno flag).

Reviewers: hfinkel, bogner

Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond

Differential Revision: https://reviews.llvm.org/D32921

llvm-svn: 305204
 		2017-06-12 17:15:41 +00:00
..
Analysis [BPI] Don't assume that strcmp returning >0 is more likely than <0 2017-06-08 09:44:40 +00:00
Assembler [IR] Allow attributes with global variables 2017-05-11 12:28:08 +00:00
Bindings [LLVM-C] [OCaml] Expose Type::subtypes. 2017-06-05 11:49:52 +00:00
Bitcode [X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build. 2017-06-04 08:21:58 +00:00
BugPoint bugpoint: disabling symbolication of bugpoint-executed programs 2017-06-09 07:29:03 +00:00
CodeGen [SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno 2017-06-12 17:15:41 +00:00
DebugInfo dwarfdump: Handle relocs to zlib (.zdebug*) compressed sections 2017-06-10 19:32:50 +00:00
Examples
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ExecutionEngine [RuntimeDyld, PowerPC] Fix check for external symbols when detecting reloction overflow 2017-05-23 14:51:18 +00:00
Feature Add constrained intrinsics for some libm-equivalent operations 2017-05-25 21:31:00 +00:00
FileCheck [FileCheck] Don't scan past the closing CHECK-DAG for CHECK-NOT inside CHECK-DAG 2017-06-07 12:06:45 +00:00
Instrumentation [sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. Reapplying revisions 304630, 304631, 304632, 304673, see PR33308 2017-06-08 22:58:19 +00:00
Integer
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JitListener
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LTO [Linker] Remove warning when linking ARM and Thumb IR modules. 2017-06-07 09:17:01 +00:00
LibDriver
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Linker [Linker] Remove llc usage from link-arm-and-thumb.ll test case. 2017-06-07 09:59:22 +00:00
MC AMDGPU: Start adding offset fields to flat instructions 2017-06-12 15:55:58 +00:00
Object test: fix hexagon build 2017-06-05 21:45:25 +00:00
ObjectYAML [WebAssembly] Improve libObject support for wasm imports and exports 2017-05-09 23:48:41 +00:00
Other [PM/ThinLTO] Port the ThinLTO pipeline (both components) to the new PM. 2017-06-01 11:39:39 +00:00
SymbolRewriter
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TableGen [globalisel][tablegen] Add support for (set $dst, 1) and test X86's OptForSize predicate. 2017-05-23 19:33:16 +00:00
ThinLTO/X86 Move summary dead stripping before regular LTO. 2017-06-02 18:24:17 +00:00
Transforms [InstCombine] lshr (sext iM X to iN), N-M --> zext (ashr X, min(N-M, M-1)) to iN 2017-06-12 14:23:43 +00:00
Unit [Lit] Fix to prevent creation of "%SystemDrive%" directory on Windows. 2017-05-08 08:55:38 +00:00
Verifier Add constrained intrinsics for some libm-equivalent operations 2017-05-25 21:31:00 +00:00
YAMLParser
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tools Rename llvm-pdbdump -> llvm-pdbutil. 2017-06-09 20:46:17 +00:00
.clang-format
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CMakeLists.txt Rename llvm-pdbdump -> llvm-pdbutil. 2017-06-09 20:46:17 +00:00
TestRunner.sh
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lit.cfg Introduce the new feature "abi-breaking-checks" to satisfy -reverse-iterate in llvm/test/Transforms/Util/PredicateInfo/ 2017-06-07 00:22:52 +00:00
lit.site.cfg.in Introduce the new feature "abi-breaking-checks" to satisfy -reverse-iterate in llvm/test/Transforms/Util/PredicateInfo/ 2017-06-07 00:22:52 +00:00