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Jingyue Wu f15b696b79 [NVPTX] Emit .pragma "nounroll" for loops marked with nounroll
Summary:
CUDA driver can unroll loops when jit-compiling PTX. To prevent CUDA
driver from unrolling a loop marked with llvm.loop.unroll.disable is not
unrolled by CUDA driver, we need to emit .pragma "nounroll" at the
header of that loop.

This patch also extracts getting unroll metadata from loop ID metadata
into a shared helper function.

Test Plan: test/CodeGen/NVPTX/nounroll.ll

Reviewers: eliben, meheff, jholewinski

Reviewed By: jholewinski

Subscribers: jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D7041

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227703 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-01 02:27:45 +00:00
autoconf [Cygming] Seek also chkstk_ms, or JIT fails with DLL builds. It is fixup for r227519. 2015-01-30 13:01:19 +00:00
bindings IR: Return unique_ptr from MDNode::getTemporary() 2015-01-19 21:30:18 +00:00
cmake [Cygming] Seek also chkstk_ms, or JIT fails with DLL builds. It is fixup for r227519. 2015-01-30 13:01:19 +00:00
docs Remove the preverify pass from the documentation now that it has been removed 2015-01-30 20:51:09 +00:00
examples Reorder. 2015-01-19 00:35:33 +00:00
include [NVPTX] Emit .pragma "nounroll" for loops marked with nounroll 2015-02-01 02:27:45 +00:00
lib [NVPTX] Emit .pragma "nounroll" for loops marked with nounroll 2015-02-01 02:27:45 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test [NVPTX] Emit .pragma "nounroll" for loops marked with nounroll 2015-02-01 02:27:45 +00:00
tools [PM] Switch the TargetMachine interface from accepting a pass manager 2015-01-31 11:17:59 +00:00
unittests Move DebugInfo to DebugInfo/DWARF. 2015-01-30 18:07:45 +00:00
utils Replace another std::set in the core of CodeGenRegister, this time with sorted arrays. 2015-01-31 09:13:36 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Trunk is now 3.7.0svn 2015-01-14 17:38:03 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure [Cygming] Seek also chkstk_ms, or JIT fails with DLL builds. It is fixup for r227519. 2015-01-30 13:01:19 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Check commit access 2015-01-16 19:23:34 +00:00

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