diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86.td')
| -rw-r--r-- | llvm/lib/Target/X86/X86.td | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86.td b/llvm/lib/Target/X86/X86.td index 852267400bb..7b0d4a1e8bb 100644 --- a/llvm/lib/Target/X86/X86.td +++ b/llvm/lib/Target/X86/X86.td @@ -181,6 +181,11 @@ def FeatureSlowDivide64 : SubtargetFeature<"idivq-to-divw", def FeaturePadShortFunctions : SubtargetFeature<"pad-short-functions", "PadShortFunctions", "true", "Pad short functions">; +// TODO: This feature ought to be renamed. +// What it really refers to are CPUs where instruction that cause MSROM +// lookups are expensive, so alternative sequences should be preferred. +// The best examples of this are the memory forms of CALL and PUSH +// instructions, which should be avoided in favor of a MOV + register CALL/PUSH. def FeatureCallRegIndirect : SubtargetFeature<"call-reg-indirect", "CallRegIndirect", "true", "Call register indirect">; |
