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| author | Chad Rosier <mcrosier@apple.com> | 2012-10-30 19:11:54 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2012-10-30 19:11:54 +0000 |
| commit | 3d71688476951d56ac00a81b17c2f83fd781b208 (patch) | |
| tree | 13c4910a677393f45e540d495ba0a5fee1a3f0eb /lib/CodeGen/ScheduleDAGInstrs.cpp | |
| parent | e7b406d7ac150189522f0a139f1a2f76bde2cb26 (diff) | |
| download | external_llvm-3d71688476951d56ac00a81b17c2f83fd781b208.zip external_llvm-3d71688476951d56ac00a81b17c2f83fd781b208.tar.gz external_llvm-3d71688476951d56ac00a81b17c2f83fd781b208.tar.bz2 | |
[inline asm] Implement mayLoad and mayStore for inline assembly. In general,
the MachineInstr MayLoad/MayLoad flags are based on the tablegen implementation.
For inline assembly, however, we need to compute these based on the constraints.
Revert r166929 as this is no longer needed, but leave the test case in place.
rdar://12033048 and PR13504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167040 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ScheduleDAGInstrs.cpp')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.cpp | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp index 8ea0f8a..496473d 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.cpp +++ b/lib/CodeGen/ScheduleDAGInstrs.cpp @@ -420,11 +420,6 @@ void ScheduleDAGInstrs::addVRegUseDeps(SUnit *SU, unsigned OperIdx) { /// Return true if MI is an instruction we are unable to reason about /// (like a call or something with unmodeled side effects). static inline bool isGlobalMemoryObject(AliasAnalysis *AA, MachineInstr *MI) { - if (MI->isInlineAsm()) { - // Until we can tell if an inline assembly instruction accesses - // memory, we must assume all such instructions do so. - return true; - } if (MI->isCall() || MI->hasUnmodeledSideEffects() || (MI->hasOrderedMemoryRef() && (!MI->mayLoad() || !MI->isInvariantLoad(AA)))) |