Mark X86::RET and RETI instructions as variadic.
There is special magic happening when returning floating point values on
the x87 stack. The RET instructions get extra f80 operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162592 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrControl.td b/lib/Target/X86/X86InstrControl.td
index b0c27c8..bfe9541 100644
--- a/lib/Target/X86/X86InstrControl.td
+++ b/lib/Target/X86/X86InstrControl.td
@@ -16,15 +16,18 @@
//
// Return instructions.
+//
+// The X86retflag return instructions are variadic because we may add ST0 and
+// ST1 arguments when returning values on the x87 stack.
let isTerminator = 1, isReturn = 1, isBarrier = 1,
hasCtrlDep = 1, FPForm = SpecialFP in {
- def RET : I <0xC3, RawFrm, (outs), (ins),
+ def RET : I <0xC3, RawFrm, (outs), (ins variable_ops),
"ret",
[(X86retflag 0)], IIC_RET>;
def RETW : I <0xC3, RawFrm, (outs), (ins),
"ret{w}",
[], IIC_RET>, OpSize;
- def RETI : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt),
+ def RETI : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt, variable_ops),
"ret\t$amt",
[(X86retflag timm:$amt)], IIC_RET_IMM>;
def RETIW : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt),