Do not model all INLINEASM instructions as having unmodelled side effects.
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.
This allows memory instructions to be moved around INLINEASM instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 60c9096..f29d127 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1036,8 +1036,8 @@
}
const TargetInstrDesc &TID = MI.getDesc();
- if (TID.hasUnmodeledSideEffects() ||
- TID.hasImplicitDefOfPhysReg(X86::EFLAGS))
+ if (TID.hasImplicitDefOfPhysReg(X86::EFLAGS) ||
+ MI.hasUnmodeledSideEffects())
break;
}