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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-09-07 22:38:45 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-09-07 22:38:45 +0000 |
| commit | 6b964cd21118e816a4669d660d2c96751dc7ccf3 (patch) | |
| tree | e49f752af5551c9dcde1cc1eb40393c672d63896 /docs/CommandGuide/llvm-diff.pod | |
| parent | 447e7ac913181ec3eae7c56a73c059df5382c029 (diff) | |
Don't add <imp-def> operands during register rewriting.
LiveIntervals already adds <imp-def> operands for super-registers when a subreg
def defines the whole register. Thus, it is not necessary to do it again when
rewriting.
In fact, the super-register imp-defs caused miscompilations because the late
scheduler couldn't see that the super-register was read.
We still add super-reg <imp-use,kill> operands when rewriting virtuals to
physicals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113299 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CommandGuide/llvm-diff.pod')
0 files changed, 0 insertions, 0 deletions