diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 5a6e62e520..e4cf12e858 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -191,13 +191,23 @@ let isCall = 1 in def CALL32m : I<0xFF, MRM2m, (ops i32mem:$dst), "call {*}$dst">; } +// Tail call stuff. let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in - def TAILJMPd : IBr<0xE9, (ops calltarget:$dst), "jmp $dst">; + def TAILJMPd : IBr<0xE9, (ops calltarget:$dst), "jmp $dst # TAIL CALL">; let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in - def TAILJMPr : I<0xFF, MRM4r, (ops R32:$dst), "jmp {*}$dst">; + def TAILJMPr : I<0xFF, MRM4r, (ops R32:$dst), "jmp {*}$dst # TAIL CALL">; let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in - def TAILJMPm : I<0xFF, MRM4m, (ops i32mem:$dst), "jmp {*}$dst">; - + def TAILJMPm : I<0xFF, MRM4m, (ops i32mem:$dst), "jmp {*}$dst # TAIL CALL">; + +// ADJSTACKPTRri - This is a standard ADD32ri instruction, identical in every +// way, except that it is marked as being a terminator. This causes the epilog +// inserter to insert reloads of callee saved registers BEFORE this. We need +// this until we have a more accurate way of tracking where the stack pointer is +// within a function. +let isTerminator = 1, isTwoAddress = 1 in + def ADJSTACKPTRri : Ii32<0x81, MRM0r, (ops R32:$dst, R32:$src1, i32imm:$src2), + "add{l} {$src2, $dst|$dst, $src2}">; + //===----------------------------------------------------------------------===// // Miscellaneous Instructions... // |