diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 7 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.def | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 6d2bf1d496..c81ddb1900 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -12,8 +12,11 @@ // descriptors // static const MachineInstrDescriptor X86Insts[] = { -#define I(ENUM, NAME, FLAGS, TSFLAGS) \ - { NAME, -1, -1, 0, false, 0, 0, TSFLAGS, FLAGS }, +#define I(ENUM, NAME, FLAGS, TSFLAGS) \ + { NAME, \ + -1, /* Always vararg */ \ + ((TSFLAGS) & X86II::Void) ? -1 : 0, /* Result is in 0 */ \ + 0, false, 0, 0, TSFLAGS, FLAGS, TSFLAGS }, #include "X86InstrInfo.def" }; diff --git a/lib/Target/X86/X86InstrInfo.def b/lib/Target/X86/X86InstrInfo.def index bd4e47be4d..2388b9bf38 100644 --- a/lib/Target/X86/X86InstrInfo.def +++ b/lib/Target/X86/X86InstrInfo.def @@ -5,6 +5,10 @@ // specified below, and is used to make all of the information relevant to an // instruction be in one place. // +// Note that X86 Instructions always have the destination register listed as +// operand 0, unless it does not produce a value (in which case the TSFlags will +// include X86II::Void). +// //===----------------------------------------------------------------------===// // NOTE: No include guards desired |