aboutsummaryrefslogtreecommitdiff
path: root/lib/Target/X86/X86InstrShiftRotate.td
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/X86/X86InstrShiftRotate.td')
-rw-r--r--lib/Target/X86/X86InstrShiftRotate.td54
1 files changed, 37 insertions, 17 deletions
diff --git a/lib/Target/X86/X86InstrShiftRotate.td b/lib/Target/X86/X86InstrShiftRotate.td
index 1185941d34..5b6298b541 100644
--- a/lib/Target/X86/X86InstrShiftRotate.td
+++ b/lib/Target/X86/X86InstrShiftRotate.td
@@ -15,7 +15,7 @@
let Defs = [EFLAGS] in {
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHL8rCL : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1),
"shl{b}\t{%cl, $dst|$dst, CL}",
@@ -62,9 +62,10 @@ def SHL64r1 : RI<0xD1, MRM4r, (outs GR64:$dst), (ins GR64:$src1),
"shl{q}\t$dst", [], IIC_SR>;
} // hasSideEffects = 0
} // isConvertibleToThreeAddress = 1
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
// FIXME: Why do we need an explicit "Uses = [CL]" when the instr has a pattern
// using CL?
let Uses = [CL] in {
@@ -118,8 +119,9 @@ def SHL64m1 : RI<0xD1, MRM4m, (outs), (ins i64mem:$dst),
"shl{q}\t$dst",
[(store (shl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
+} // SchedRW
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHR8rCL : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src1),
"shr{b}\t{%cl, $dst|$dst, CL}",
@@ -163,9 +165,10 @@ def SHR32r1 : I<0xD1, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
def SHR64r1 : RI<0xD1, MRM5r, (outs GR64:$dst), (ins GR64:$src1),
"shr{q}\t$dst",
[(set GR64:$dst, (srl GR64:$src1, (i8 1)))], IIC_SR>;
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SHR8mCL : I<0xD2, MRM5m, (outs), (ins i8mem :$dst),
"shr{b}\t{%cl, $dst|$dst, CL}",
@@ -216,8 +219,9 @@ def SHR64m1 : RI<0xD1, MRM5m, (outs), (ins i64mem:$dst),
"shr{q}\t$dst",
[(store (srl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
+} // SchedRW
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SAR8rCL : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
"sar{b}\t{%cl, $dst|$dst, CL}",
@@ -273,9 +277,10 @@ def SAR64r1 : RI<0xD1, MRM7r, (outs GR64:$dst), (ins GR64:$src1),
"sar{q}\t$dst",
[(set GR64:$dst, (sra GR64:$src1, (i8 1)))],
IIC_SR>;
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SAR8mCL : I<0xD2, MRM7m, (outs), (ins i8mem :$dst),
"sar{b}\t{%cl, $dst|$dst, CL}",
@@ -330,13 +335,14 @@ def SAR64m1 : RI<0xD1, MRM7m, (outs), (ins i64mem:$dst),
"sar{q}\t$dst",
[(store (sra (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Rotate instructions
//===----------------------------------------------------------------------===//
let hasSideEffects = 0 in {
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
def RCL8r1 : I<0xD0, MRM2r, (outs GR8:$dst), (ins GR8:$src1),
"rcl{b}\t$dst", [], IIC_SR>;
def RCL8ri : Ii8<0xC0, MRM2r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$cnt),
@@ -405,6 +411,7 @@ def RCR64rCL : RI<0xD3, MRM3r, (outs GR64:$dst), (ins GR64:$src1),
} // Constraints = "$src = $dst"
+let SchedRW = [WriteShiftLd, WriteRMW] in {
def RCL8m1 : I<0xD0, MRM2m, (outs), (ins i8mem:$dst),
"rcl{b}\t$dst", [], IIC_SR>;
def RCL8mi : Ii8<0xC0, MRM2m, (outs), (ins i8mem:$dst, i8imm:$cnt),
@@ -458,9 +465,10 @@ def RCR32mCL : I<0xD3, MRM3m, (outs), (ins i32mem:$dst),
def RCR64mCL : RI<0xD3, MRM3m, (outs), (ins i64mem:$dst),
"rcr{q}\t{%cl, $dst|$dst, CL}", [], IIC_SR>;
}
+} // SchedRW
} // hasSideEffects = 0
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
// FIXME: provide shorter instructions when imm8 == 1
let Uses = [CL] in {
def ROL8rCL : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
@@ -512,8 +520,9 @@ def ROL64r1 : RI<0xD1, MRM0r, (outs GR64:$dst), (ins GR64:$src1),
"rol{q}\t$dst",
[(set GR64:$dst, (rotl GR64:$src1, (i8 1)))],
IIC_SR>;
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def ROL8mCL : I<0xD2, MRM0m, (outs), (ins i8mem :$dst),
"rol{b}\t{%cl, $dst|$dst, CL}",
@@ -568,8 +577,9 @@ def ROL64m1 : RI<0xD1, MRM0m, (outs), (ins i64mem:$dst),
"rol{q}\t$dst",
[(store (rotl (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
+} // SchedRW
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def ROR8rCL : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
"ror{b}\t{%cl, $dst|$dst, CL}",
@@ -620,8 +630,9 @@ def ROR64r1 : RI<0xD1, MRM1r, (outs GR64:$dst), (ins GR64:$src1),
"ror{q}\t$dst",
[(set GR64:$dst, (rotr GR64:$src1, (i8 1)))],
IIC_SR>;
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def ROR8mCL : I<0xD2, MRM1m, (outs), (ins i8mem :$dst),
"ror{b}\t{%cl, $dst|$dst, CL}",
@@ -676,13 +687,14 @@ def ROR64m1 : RI<0xD1, MRM1m, (outs), (ins i64mem:$dst),
"ror{q}\t$dst",
[(store (rotr (loadi64 addr:$dst), (i8 1)), addr:$dst)],
IIC_SR>;
+} // SchedRW
//===----------------------------------------------------------------------===//
// Double shift instructions (generalizations of rotate)
//===----------------------------------------------------------------------===//
-let Constraints = "$src1 = $dst" in {
+let Constraints = "$src1 = $dst", SchedRW = [WriteShift] in {
let Uses = [CL] in {
def SHLD16rrCL : I<0xA5, MRMDestReg, (outs GR16:$dst),
@@ -765,8 +777,9 @@ def SHRD64rri8 : RIi8<0xAC, MRMDestReg,
(i8 imm:$src3)))], IIC_SHD64_REG_IM>,
TB;
}
-} // Constraints = "$src = $dst"
+} // Constraints = "$src = $dst", SchedRW
+let SchedRW = [WriteShiftLd, WriteRMW] in {
let Uses = [CL] in {
def SHLD16mrCL : I<0xA5, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
"shld{w}\t{%cl, $src2, $dst|$dst, $src2, CL}",
@@ -840,6 +853,7 @@ def SHRD64mri8 : RIi8<0xAC, MRMDestMem,
(i8 imm:$src3)), addr:$dst)],
IIC_SHD64_MEM_IM>,
TB;
+} // SchedRW
} // Defs = [EFLAGS]
@@ -857,12 +871,12 @@ multiclass bmi_rotate<string asm, RegisterClass RC, X86MemOperand x86memop> {
let neverHasSideEffects = 1 in {
def ri : Ii8<0xF0, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, i8imm:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
- []>, TAXD, VEX;
+ []>, TAXD, VEX, Sched<[WriteShift]>;
let mayLoad = 1 in
def mi : Ii8<0xF0, MRMSrcMem, (outs RC:$dst),
(ins x86memop:$src1, i8imm:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
- []>, TAXD, VEX;
+ []>, TAXD, VEX, Sched<[WriteShiftLd]>;
}
}
@@ -870,11 +884,17 @@ multiclass bmi_shift<string asm, RegisterClass RC, X86MemOperand x86memop> {
let neverHasSideEffects = 1 in {
def rr : I<0xF7, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
- VEX_4VOp3;
+ VEX_4VOp3, Sched<[WriteShift]>;
let mayLoad = 1 in
def rm : I<0xF7, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
!strconcat(asm, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"), []>,
- VEX_4VOp3;
+ VEX_4VOp3,
+ Sched<[WriteShiftLd,
+ // x86memop:$src1
+ ReadDefault, ReadDefault, ReadDefault, ReadDefault,
+ ReadDefault,
+ // RC:$src1
+ ReadAfterLd]>;
}
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-21 16:07:29 +0000