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Author SHA1 Message Date
Peter Collingbourne d4135bbc30 DebugInfo: New metadata representation for global variables. 
This patch reverses the edge from DIGlobalVariable to GlobalVariable.
This will allow us to more easily preserve debug info metadata when
manipulating global variables.

Fixes PR30362. A program for upgrading test cases is attached to that
bug.

Differential Revision: http://reviews.llvm.org/D20147

llvm-svn: 281284
 2016-09-13 01:12:59 +00:00
Hans Wennborg 0c3518e84b [SimplifyCFG] isSafeToSpeculateStore now ignores debug info 
This patch fixes PR27615.

@llvm.dbg.value instructions no longer count towards the maximum number of
instructions to look back at in the instruction list when searching for a
store instruction. This should make the output consistent between debug and
non-debug build.

Patch by Henric Karlsson <henric.karlsson@ericsson.com>!

Differential Revision: http://reviews.llvm.org/D19912

llvm-svn: 268512
 2016-05-04 15:40:57 +00:00