diff options
| -rw-r--r-- | compiler/GHC/CmmToAsm/X86/Instr.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/GHC/CmmToAsm/X86/Instr.hs b/compiler/GHC/CmmToAsm/X86/Instr.hs index 1f1515b0c9..42b9543204 100644 --- a/compiler/GHC/CmmToAsm/X86/Instr.hs +++ b/compiler/GHC/CmmToAsm/X86/Instr.hs @@ -196,6 +196,10 @@ data Instr -- Moves. | MOV Format Operand Operand + -- ^ N.B. when used with the 'II64' 'Format', the source + -- operand is interpreted to be a 32-bit sign-extended value. + -- True 64-bit operands need to be moved with @MOVABS@, which we + -- currently don't use. | CMOV Cond Format Operand Reg | MOVZxL Format Operand Operand -- ^ The format argument is the size of operand 1 (the number of bits we keep) |