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-rw-r--r--compiler/dex/quick/arm64/assemble_arm64.cc2
-rw-r--r--compiler/dex/quick/arm64/codegen_arm64.h1
-rw-r--r--compiler/dex/quick/arm64/int_arm64.cc6
-rw-r--r--compiler/dex/quick/arm64/utility_arm64.cc50
4 files changed, 48 insertions, 11 deletions
diff --git a/compiler/dex/quick/arm64/assemble_arm64.cc b/compiler/dex/quick/arm64/assemble_arm64.cc
index 4a0c055f4d..fcaaba5889 100644
--- a/compiler/dex/quick/arm64/assemble_arm64.cc
+++ b/compiler/dex/quick/arm64/assemble_arm64.cc
@@ -268,7 +268,7 @@ const ArmEncodingMap Arm64Mir2Lir::EncodingMap[kA64Last] = {
kFmtRegS, 4, 0, kFmtRegW, 9, 5, kFmtUnused, -1, -1,
kFmtUnused, -1, -1, IS_BINARY_OP | REG_DEF0_USE1,
"fmov", "!0s, !1w", kFixupNone),
- ENCODING_MAP(kA64Fmov2Sx, NO_VARIANTS(0x9e6f0000),
+ ENCODING_MAP(kA64Fmov2Sx, NO_VARIANTS(0x9e670000),
kFmtRegD, 4, 0, kFmtRegX, 9, 5, kFmtUnused, -1, -1,
kFmtUnused, -1, -1, IS_BINARY_OP | REG_DEF0_USE1,
"fmov", "!0S, !1x", kFixupNone),
diff --git a/compiler/dex/quick/arm64/codegen_arm64.h b/compiler/dex/quick/arm64/codegen_arm64.h
index c92832e499..8ecc393ba6 100644
--- a/compiler/dex/quick/arm64/codegen_arm64.h
+++ b/compiler/dex/quick/arm64/codegen_arm64.h
@@ -185,6 +185,7 @@ class Arm64Mir2Lir : public Mir2Lir {
LIR* OpMovRegMem(RegStorage r_dest, RegStorage r_base, int offset, MoveType move_type);
LIR* OpMovMemReg(RegStorage r_base, int offset, RegStorage r_src, MoveType move_type);
LIR* OpCondRegReg(OpKind op, ConditionCode cc, RegStorage r_dest, RegStorage r_src);
+ LIR* OpRegRegImm64(OpKind op, RegStorage r_dest, RegStorage r_src1, int64_t value);
LIR* OpRegRegImm(OpKind op, RegStorage r_dest, RegStorage r_src1, int value);
LIR* OpRegRegReg(OpKind op, RegStorage r_dest, RegStorage r_src1, RegStorage r_src2);
LIR* OpTestSuspend(LIR* target);
diff --git a/compiler/dex/quick/arm64/int_arm64.cc b/compiler/dex/quick/arm64/int_arm64.cc
index 1ad0435ff8..a18cc824c8 100644
--- a/compiler/dex/quick/arm64/int_arm64.cc
+++ b/compiler/dex/quick/arm64/int_arm64.cc
@@ -77,10 +77,10 @@ void Arm64Mir2Lir::GenShiftOpLong(Instruction::Code opcode, RegLocation rl_dest,
default:
LOG(FATAL) << "Unexpected case: " << opcode;
}
- rl_shift = LoadValueWide(rl_shift, kCoreReg);
+ rl_shift = LoadValue(rl_shift, kCoreReg);
rl_src1 = LoadValueWide(rl_src1, kCoreReg);
RegLocation rl_result = EvalLocWide(rl_dest, kCoreReg, true);
- OpRegRegReg(op, rl_result.reg, rl_src1.reg, rl_shift.reg);
+ OpRegRegReg(op, rl_result.reg, rl_src1.reg, As64BitReg(rl_shift.reg));
StoreValueWide(rl_dest, rl_result);
}
@@ -1021,7 +1021,7 @@ void Arm64Mir2Lir::GenArithImmOpLong(Instruction::Code opcode, RegLocation rl_de
rl_src1 = LoadValueWide(rl_src1, kCoreReg);
RegLocation rl_result = EvalLocWide(rl_dest, kCoreReg, true);
- OpRegRegImm(op, rl_result.reg, rl_src1.reg, val);
+ OpRegRegImm64(op, rl_result.reg, rl_src1.reg, val);
StoreValueWide(rl_dest, rl_result);
}
diff --git a/compiler/dex/quick/arm64/utility_arm64.cc b/compiler/dex/quick/arm64/utility_arm64.cc
index 954360dafa..bb8b7e30b2 100644
--- a/compiler/dex/quick/arm64/utility_arm64.cc
+++ b/compiler/dex/quick/arm64/utility_arm64.cc
@@ -146,7 +146,7 @@ static int CountTrailingZeros(bool is_wide, uint64_t value) {
static int CountSetBits(bool is_wide, uint64_t value) {
return ((is_wide) ?
- __builtin_popcountl(value) : __builtin_popcount((uint32_t)value));
+ __builtin_popcountll(value) : __builtin_popcount((uint32_t)value));
}
/**
@@ -552,8 +552,11 @@ LIR* Arm64Mir2Lir::OpRegRegReg(OpKind op, RegStorage r_dest, RegStorage r_src1,
return OpRegRegRegShift(op, r_dest, r_src1, r_src2, ENCODE_NO_SHIFT);
}
-// Should be taking an int64_t value ?
LIR* Arm64Mir2Lir::OpRegRegImm(OpKind op, RegStorage r_dest, RegStorage r_src1, int value) {
+ return OpRegRegImm64(op, r_dest, r_src1, static_cast<int64_t>(value));
+}
+
+LIR* Arm64Mir2Lir::OpRegRegImm64(OpKind op, RegStorage r_dest, RegStorage r_src1, int64_t value) {
LIR* res;
bool neg = (value < 0);
int64_t abs_value = (neg) ? -value : value;
@@ -637,11 +640,17 @@ LIR* Arm64Mir2Lir::OpRegRegImm(OpKind op, RegStorage r_dest, RegStorage r_src1,
return NewLIR3(opcode | wide, r_dest.GetReg(), r_src1.GetReg(), log_imm);
} else {
RegStorage r_scratch = AllocTemp();
- LoadConstant(r_scratch, value);
+ if (IS_WIDE(wide)) {
+ r_scratch = AllocTempWide();
+ LoadConstantWide(r_scratch, value);
+ } else {
+ r_scratch = AllocTemp();
+ LoadConstant(r_scratch, value);
+ }
if (EncodingMap[alt_opcode].flags & IS_QUAD_OP)
- res = NewLIR4(alt_opcode, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg(), 0);
+ res = NewLIR4(alt_opcode | wide, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg(), 0);
else
- res = NewLIR3(alt_opcode, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg());
+ res = NewLIR3(alt_opcode | wide, r_dest.GetReg(), r_src1.GetReg(), r_scratch.GetReg());
FreeTemp(r_scratch);
return res;
}
@@ -666,9 +675,36 @@ LIR* Arm64Mir2Lir::OpRegImm64(OpKind op, RegStorage r_dest_src1, int64_t value)
// abs_value is a shifted 12-bit immediate.
shift = true;
abs_value >>= 12;
+ } else if (LIKELY(abs_value < 0x1000000 && (op == kOpAdd || op == kOpSub))) {
+ // Note: It is better to use two ADD/SUB instead of loading a number to a temp register.
+ // This works for both normal registers and SP.
+ // For a frame size == 0x2468, it will be encoded as:
+ // sub sp, #0x2000
+ // sub sp, #0x468
+ if (neg) {
+ op = (op == kOpAdd) ? kOpSub : kOpAdd;
+ }
+ OpRegImm64(op, r_dest_src1, abs_value & (~INT64_C(0xfff)));
+ return OpRegImm64(op, r_dest_src1, abs_value & 0xfff);
+ } else if (LIKELY(A64_REG_IS_SP(r_dest_src1.GetReg()) && (op == kOpAdd || op == kOpSub))) {
+ // Note: "sub sp, sp, Xm" is not correct on arm64.
+ // We need special instructions for SP.
+ // Also operation on 32-bit SP should be avoided.
+ DCHECK(IS_WIDE(wide));
+ RegStorage r_tmp = AllocTempWide();
+ OpRegRegImm(kOpAdd, r_tmp, r_dest_src1, 0);
+ OpRegImm64(op, r_tmp, value);
+ return OpRegRegImm(kOpAdd, r_dest_src1, r_tmp, 0);
} else {
- RegStorage r_tmp = AllocTemp();
- LIR* res = LoadConstant(r_tmp, value);
+ RegStorage r_tmp;
+ LIR* res;
+ if (IS_WIDE(wide)) {
+ r_tmp = AllocTempWide();
+ res = LoadConstantWide(r_tmp, value);
+ } else {
+ r_tmp = AllocTemp();
+ res = LoadConstant(r_tmp, value);
+ }
OpRegReg(op, r_dest_src1, r_tmp);
FreeTemp(r_tmp);
return res;
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-16 03:35:07 +0000