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Duncan P. N. Exon Smith
608e4a390c
Mark vastart_save_xmm_regs as changing EFLAGS
The vastart_save_xmm_regs pseudo-instruction expands to a test and a branch, so it modifies EFLAGS. Mark it so, or else the scheduler might place it in the middle of another test+branch. This fixes a bug exposed by r192750, which turned on the MI Scheduler for X86. <rdar://problem/15627766> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197469 91177308-0d34-0410-b5e6-96231b3b80d8
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