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-rw-r--r--lib/Target/ARM/ARMBaseInstrInfo.cpp72
-rw-r--r--lib/Target/ARM/ARMInstrInfo.td8
-rw-r--r--lib/Target/ARM/ARMInstrThumb2.td24
-rw-r--r--lib/Target/ARM/ARMScheduleA9.td4
4 files changed, 23 insertions, 85 deletions
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 51db677..1c89b97 100644
--- a/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -1823,8 +1823,8 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
// This may be a def / use of a variable_ops instruction, the operand
// latency might be determinable dynamically. Let the target try to
// figure it out.
- int DefCycle = -1;
bool LdmBypass = false;
+ int DefCycle = -1;
switch (DefTID.getOpcode()) {
default:
DefCycle = ItinData->getOperandCycle(DefClass, DefIdx);
@@ -1922,38 +1922,8 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
? (*DefMI->memoperands_begin())->getAlignment() : 0;
unsigned UseAlign = UseMI->hasOneMemOperand()
? (*UseMI->memoperands_begin())->getAlignment() : 0;
- int Latency = getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
- UseTID, UseIdx, UseAlign);
-
- if (Latency > 1 &&
- (Subtarget.isCortexA8() || Subtarget.isCortexA9())) {
- // FIXME: Shifter op hack: no shift (i.e. [r +/- r]) or [r + r << 2]
- // variants are one cycle cheaper.
- switch (DefTID.getOpcode()) {
- default: break;
- case ARM::LDRrs:
- case ARM::LDRBrs: {
- unsigned ShOpVal = DefMI->getOperand(3).getImm();
- unsigned ShImm = ARM_AM::getAM2Offset(ShOpVal);
- if (ShImm == 0 ||
- (ShImm == 2 && ARM_AM::getAM2ShiftOpc(ShOpVal) == ARM_AM::lsl))
- --Latency;
- break;
- }
- case ARM::t2LDRs:
- case ARM::t2LDRBs:
- case ARM::t2LDRHs:
- case ARM::t2LDRSHs: {
- // Thumb2 mode: lsl only.
- unsigned ShAmt = DefMI->getOperand(3).getImm();
- if (ShAmt == 0 || ShAmt == 2)
- --Latency;
- break;
- }
- }
- }
-
- return Latency;
+ return getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
+ UseTID, UseIdx, UseAlign);
}
int
@@ -1977,40 +1947,8 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
const MachineSDNode *UseMN = dyn_cast<MachineSDNode>(UseNode);
unsigned UseAlign = !UseMN->memoperands_empty()
? (*UseMN->memoperands_begin())->getAlignment() : 0;
- int Latency = getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
- UseTID, UseIdx, UseAlign);
-
- if (Latency > 1 &&
- (Subtarget.isCortexA8() || Subtarget.isCortexA9())) {
- // FIXME: Shifter op hack: no shift (i.e. [r +/- r]) or [r + r << 2]
- // variants are one cycle cheaper.
- switch (DefTID.getOpcode()) {
- default: break;
- case ARM::LDRrs:
- case ARM::LDRBrs: {
- unsigned ShOpVal =
- cast<ConstantSDNode>(DefNode->getOperand(2))->getZExtValue();
- unsigned ShImm = ARM_AM::getAM2Offset(ShOpVal);
- if (ShImm == 0 ||
- (ShImm == 2 && ARM_AM::getAM2ShiftOpc(ShOpVal) == ARM_AM::lsl))
- --Latency;
- break;
- }
- case ARM::t2LDRs:
- case ARM::t2LDRBs:
- case ARM::t2LDRHs:
- case ARM::t2LDRSHs: {
- // Thumb2 mode: lsl only.
- unsigned ShAmt =
- cast<ConstantSDNode>(DefNode->getOperand(2))->getZExtValue();
- if (ShAmt == 0 || ShAmt == 2)
- --Latency;
- break;
- }
- }
- }
-
- return Latency;
+ return getOperandLatency(ItinData, DefTID, DefIdx, DefAlign,
+ UseTID, UseIdx, UseAlign);
}
bool ARMBaseInstrInfo::
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index ffd4962..0974890 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -1438,13 +1438,13 @@ def RFE : ABXI<{1,0,0,?}, (outs), (ins addrmode4:$addr, GPR:$base),
// Load
-defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
+defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_i, IIC_iLoad_r,
UnOpFrag<(load node:$Src)>>;
-defm LDRB : AI_ldr1<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
+defm LDRB : AI_ldr1<1, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_r,
UnOpFrag<(zextloadi8 node:$Src)>>;
-defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
+defm STR : AI_str1<0, "str", IIC_iStore_i, IIC_iStore_r,
BinOpFrag<(store node:$LHS, node:$RHS)>>;
-defm STRB : AI_str1<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
+defm STRB : AI_str1<1, "strb", IIC_iStore_bh_i, IIC_iStore_bh_r,
BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
// Special LDR for loads from non-pc-relative constpools.
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 21b8347..a209fb5 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -574,7 +574,7 @@ multiclass T2I_cmp_irs<bits<4> opcod, string opc,
/// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
- InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
+ InstrItinClass iii, InstrItinClass iir, PatFrag opnode> {
def i12 : T2Ii12<(outs GPR:$dst), (ins t2addrmode_imm12:$addr), iii,
opc, ".w\t$dst, $addr",
[(set GPR:$dst, (opnode t2addrmode_imm12:$addr))]> {
@@ -599,7 +599,7 @@ multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
let Inst{10} = 1; // The P bit.
let Inst{8} = 0; // The W bit.
}
- def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), iis,
+ def s : T2Iso <(outs GPR:$dst), (ins t2addrmode_so_reg:$addr), iir,
opc, ".w\t$dst, $addr",
[(set GPR:$dst, (opnode t2addrmode_so_reg:$addr))]> {
let Inst{31-27} = 0b11111;
@@ -626,7 +626,7 @@ multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
/// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
multiclass T2I_st<bits<2> opcod, string opc,
- InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
+ InstrItinClass iii, InstrItinClass iir, PatFrag opnode> {
def i12 : T2Ii12<(outs), (ins GPR:$src, t2addrmode_imm12:$addr), iii,
opc, ".w\t$src, $addr",
[(opnode GPR:$src, t2addrmode_imm12:$addr)]> {
@@ -647,7 +647,7 @@ multiclass T2I_st<bits<2> opcod, string opc,
let Inst{10} = 1; // The P bit.
let Inst{8} = 0; // The W bit.
}
- def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), iis,
+ def s : T2Iso <(outs), (ins GPR:$src, t2addrmode_so_reg:$addr), iir,
opc, ".w\t$src, $addr",
[(opnode GPR:$src, t2addrmode_so_reg:$addr)]> {
let Inst{31-27} = 0b11111;
@@ -916,19 +916,19 @@ def t2UDIV : T2I<(outs rGPR:$dst), (ins rGPR:$a, rGPR:$b), IIC_iALUi,
// Load
let canFoldAsLoad = 1, isReMaterializable = 1 in
-defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
+defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_r,
UnOpFrag<(load node:$Src)>>;
// Loads with zero extension
-defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
+defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_r,
UnOpFrag<(zextloadi16 node:$Src)>>;
-defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
+defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_r,
UnOpFrag<(zextloadi8 node:$Src)>>;
// Loads with sign extension
-defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
+defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_r,
UnOpFrag<(sextloadi16 node:$Src)>>;
-defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
+defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_r,
UnOpFrag<(sextloadi8 node:$Src)>>;
let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
@@ -1070,11 +1070,11 @@ def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
// Store
-defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
+defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_r,
BinOpFrag<(store node:$LHS, node:$RHS)>>;
-defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
+defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_r,
BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
-defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
+defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_r,
BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
// Store doubleword
diff --git a/lib/Target/ARM/ARMScheduleA9.td b/lib/Target/ARM/ARMScheduleA9.td
index 20aa641..548bc7c 100644
--- a/lib/Target/ARM/ARMScheduleA9.td
+++ b/lib/Target/ARM/ARMScheduleA9.td
@@ -574,7 +574,7 @@ def CortexA9Itineraries : ProcessorItineraries<
InstrStage<1, [A9_DRegsVFP], 0, Required>,
InstrStage<9, [A9_DRegsN], 0, Reserved>,
InstrStage<1, [A9_NPipe]>],
- [8, 1, 1, 1]>,
+ [8, 0, 1, 1]>,
//
// Double-precision FP MAC
InstrItinData<IIC_fpMAC64 , [InstrStage<1, [A9_Issue0, A9_Issue1], 0>,
@@ -582,7 +582,7 @@ def CortexA9Itineraries : ProcessorItineraries<
InstrStage<1, [A9_DRegsVFP], 0, Required>,
InstrStage<10, [A9_DRegsN], 0, Reserved>,
InstrStage<2, [A9_NPipe]>],
- [9, 1, 1, 1]>,
+ [9, 0, 1, 1]>,
//
// Single-precision FP DIV
InstrItinData<IIC_fpDIV32 , [InstrStage<1, [A9_Issue0, A9_Issue1], 0>,
generated by cgit v1.1 at 2025-02-03 10:45:20 +0000