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509fb2c84c
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Simon Pilgrim 509fb2c84c [SelectionDAG] Unary vector constant folding integer legality fixes 
This patch fixes issues with vector constant folding not correctly handling scalar input operands if they require implicit truncation - this was tested with llvm-stress as recommended by Patrik H Hagglund.

The patch ensures that integer input scalars from a build vector are correctly truncated before folding, and that constant integer scalar results are promoted to a legal type before inclusion in the new folded build vector.

I have added another crash test case and also a test for UINT_TO_FP / SINT_TO_FP using an non-truncated scalar input, which was failing before this patch.

Differential Revision: http://reviews.llvm.org/D9282

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236308 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-01 08:20:04 +00:00
autoconf Clean up docs references to './configure' in preparation for deprecating in-source builds 2015-04-29 20:06:41 +00:00
bindings IR: Give 'DI' prefix to debug info metadata 2015-04-29 16:38:44 +00:00
cmake Allow building the gold plugin even if the gold binary is not found. 2015-04-27 21:08:47 +00:00
docs Add a note about permitting default member initializers 2015-04-30 18:17:12 +00:00
examples IR: Give 'DI' prefix to debug info metadata 2015-04-29 16:38:44 +00:00
include InstrProf: Instrumenter support for setting profile output from command line 2015-04-30 23:49:23 +00:00
lib [SelectionDAG] Unary vector constant folding integer legality fixes 2015-05-01 08:20:04 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
test [SelectionDAG] Unary vector constant folding integer legality fixes 2015-05-01 08:20:04 +00:00
tools [Object] Teach Object and llvm-objdump about ".hidden" 2015-04-30 23:08:53 +00:00
unittests Exhaustively test all triples in TripleTest. 2015-04-30 20:08:44 +00:00
utils [NFC] Updating FileCheck to reduce the std::vector interface used via cl::list. 2015-04-29 21:45:24 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Ignore compile_commands.json only at the root of the tree. 2015-03-26 18:55:42 +00:00
CMakeLists.txt [CMake] Updates to llvm-shlib to support overriding exports list and added an option to export all symbols. 2015-04-13 21:29:46 +00:00
CODE_OWNERS.TXT Add myself as the Constant Folder owner. 2015-04-20 23:19:10 +00:00
configure Clean up docs references to './configure' in preparation for deprecating in-source builds 2015-04-29 20:06:41 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
Makefile.rules
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

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