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| author | Evan Cheng <evan.cheng@apple.com> | 2009-09-11 00:39:26 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-09-11 00:39:26 +0000 |
| commit | 3cad6283b80c416c2cd6c92b143646d0ce638676 (patch) | |
| tree | f8e26bd121e2782610a9e8289d7ab62f1759738a /clang/lib/Basic/Targets.cpp | |
| parent | 9cbef32726b8cd392e600594cd75f9b99fa60635 (diff) | |
| download | bcm5719-llvm-3cad6283b80c416c2cd6c92b143646d0ce638676.tar.gz bcm5719-llvm-3cad6283b80c416c2cd6c92b143646d0ce638676.zip | |
It's not legal to fold a load from a narrower stack slot into a wider instruction. If done, the instruction does a 64-bit load and that's not
safe. This can happen we a subreg_to_reg 0 has been coalesced. One
exception is when the instruction that folds the load is a move, then we
can simply turn it into a 32-bit load from the stack slot.
rdar://7170444
llvm-svn: 81494
Diffstat (limited to 'clang/lib/Basic/Targets.cpp')
0 files changed, 0 insertions, 0 deletions
