Add a catch-all WriteSystem SchedWrite type.
This is used for all the expensive system instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177598 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrSystem.td b/lib/Target/X86/X86InstrSystem.td
index 3caa1b5..053417c 100644
--- a/lib/Target/X86/X86InstrSystem.td
+++ b/lib/Target/X86/X86InstrSystem.td
@@ -13,6 +13,7 @@
//
//===----------------------------------------------------------------------===//
+let SchedRW = [WriteSystem] in {
let Defs = [RAX, RDX] in
def RDTSC : I<0x31, RawFrm, (outs), (ins), "rdtsc", [(X86rdtsc)], IIC_RDTSC>,
TB;
@@ -35,6 +36,7 @@
def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3",
[(int_x86_int (i8 3))], IIC_INT3>;
+} // SchedRW
def : Pat<(debugtrap),
(INT3)>;
@@ -43,6 +45,7 @@
// FIXME: This doesn't work because InstAlias can't match immediate constants.
//def : InstAlias<"int\t$3", (INT3)>;
+let SchedRW = [WriteSystem] in {
def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap",
[(int_x86_int imm:$trap)], IIC_INT>;
@@ -65,11 +68,13 @@
def IRET32 : I<0xcf, RawFrm, (outs), (ins), "iret{l|d}", [], IIC_IRET>;
def IRET64 : RI<0xcf, RawFrm, (outs), (ins), "iretq", [], IIC_IRET>,
Requires<[In64BitMode]>;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Input/Output Instructions.
//
+let SchedRW = [WriteSystem] in {
let Defs = [AL], Uses = [DX] in
def IN8rr : I<0xEC, RawFrm, (outs), (ins),
"in{b}\t{%dx, %al|AL, DX}", [], IIC_IN_RR>;
@@ -113,10 +118,12 @@
def IN8 : I<0x6C, RawFrm, (outs), (ins), "ins{b}", [], IIC_INS>;
def IN16 : I<0x6D, RawFrm, (outs), (ins), "ins{w}", [], IIC_INS>, OpSize;
def IN32 : I<0x6D, RawFrm, (outs), (ins), "ins{l}", [], IIC_INS>;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Moves to and from debug registers
+let SchedRW = [WriteSystem] in {
def MOV32rd : I<0x21, MRMDestReg, (outs GR32:$dst), (ins DEBUG_REG:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_DR>, TB;
def MOV64rd : I<0x21, MRMDestReg, (outs GR64:$dst), (ins DEBUG_REG:$src),
@@ -126,10 +133,12 @@
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB;
def MOV64dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR64:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Moves to and from control registers
+let SchedRW = [WriteSystem] in {
def MOV32rc : I<0x20, MRMDestReg, (outs GR32:$dst), (ins CONTROL_REG:$src),
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_CR>, TB;
def MOV64rc : I<0x20, MRMDestReg, (outs GR64:$dst), (ins CONTROL_REG:$src),
@@ -139,6 +148,7 @@
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB;
def MOV64cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR64:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Segment override instruction prefixes
@@ -155,6 +165,7 @@
// Moves to and from segment registers.
//
+let SchedRW = [WriteMove] in {
def MOV16rs : I<0x8C, MRMDestReg, (outs GR16:$dst), (ins SEGMENT_REG:$src),
"mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize;
def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
@@ -182,10 +193,12 @@
"mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>;
def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
"mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Segmentation support instructions.
+let SchedRW = [WriteSystem] in {
def SWAPGS : I<0x01, MRM_F8, (outs), (ins), "swapgs", [], IIC_SWAPGS>, TB;
def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
@@ -347,10 +360,12 @@
"verw\t$seg", [], IIC_VERW_MEM>, TB;
def VERWm : I<0x00, MRM5m, (outs), (ins i16mem:$seg),
"verw\t$seg", [], IIC_VERW_REG>, TB;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Descriptor-table support instructions
+let SchedRW = [WriteSystem] in {
def SGDT16m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
"sgdt{w}\t$dst", [], IIC_SGDT>, TB, OpSize, Requires<[In32BitMode]>;
def SGDTm : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
@@ -385,9 +400,11 @@
"lldt{w}\t$src", [], IIC_LLDT_REG>, TB;
def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
"lldt{w}\t$src", [], IIC_LLDT_MEM>, TB;
-
+} // SchedRW
+
//===----------------------------------------------------------------------===//
// Specialized register support
+let SchedRW = [WriteSystem] in {
def WRMSR : I<0x30, RawFrm, (outs), (ins), "wrmsr", [], IIC_WRMSR>, TB;
def RDMSR : I<0x32, RawFrm, (outs), (ins), "rdmsr", [], IIC_RDMSR>, TB;
def RDPMC : I<0x33, RawFrm, (outs), (ins), "rdpmc", [], IIC_RDPMC>, TB;
@@ -410,14 +427,18 @@
"lmsw{w}\t$src", [], IIC_LMSW_REG>, TB;
def CPUID : I<0xA2, RawFrm, (outs), (ins), "cpuid", [], IIC_CPUID>, TB;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Cache instructions
+let SchedRW = [WriteSystem] in {
def INVD : I<0x08, RawFrm, (outs), (ins), "invd", [], IIC_INVD>, TB;
def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", [], IIC_INVD>, TB;
+} // SchedRW
//===----------------------------------------------------------------------===//
// XSAVE instructions
+let SchedRW = [WriteSystem] in {
let Defs = [RDX, RAX], Uses = [RCX] in
def XGETBV : I<0x01, MRM_D0, (outs), (ins), "xgetbv", []>, TB;
@@ -438,6 +459,7 @@
def XSAVEOPT64 : I<0xAE, MRM6m, (outs opaque512mem:$dst), (ins),
"xsaveoptq\t$dst", []>, TB, REX_W, Requires<[In64BitMode]>;
}
+} // SchedRW
//===----------------------------------------------------------------------===//
// VIA PadLock crypto instructions