diff options
| author | 2014-11-18 23:06:35 +0000 | |
|---|---|---|
| committer | 2014-11-24 16:06:55 +0000 | |
| commit | 9aec02fc5df5518c16f1e5a9b6cb198a192db973 (patch) | |
| tree | fe924b37f395af1bb50f55ee6c87c66b727f00af /compiler/utils/arm/assembler_thumb2.cc | |
| parent | 20032e512c003a8f42735c4e1eca19c1472bb95e (diff) | |
[optimizing compiler] Add shifts
Added SHL, SHR, USHR for arm, x86, x86_64.
Change-Id: I971f594e270179457e6958acf1401ff7630df07e
Diffstat (limited to 'compiler/utils/arm/assembler_thumb2.cc')
| -rw-r--r-- | compiler/utils/arm/assembler_thumb2.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/compiler/utils/arm/assembler_thumb2.cc b/compiler/utils/arm/assembler_thumb2.cc index a34920999e..a377cb2892 100644 --- a/compiler/utils/arm/assembler_thumb2.cc +++ b/compiler/utils/arm/assembler_thumb2.cc @@ -2210,7 +2210,7 @@ void Thumb2Assembler::EmitBranches() { void Thumb2Assembler::Lsl(Register rd, Register rm, uint32_t shift_imm, bool setcc, Condition cond) { - CHECK_NE(shift_imm, 0u); // Do not use Lsl if no shift is wanted. + CHECK_LE(shift_imm, 31u); CheckCondition(cond); EmitShift(rd, rm, LSL, shift_imm, setcc); } @@ -2218,7 +2218,7 @@ void Thumb2Assembler::Lsl(Register rd, Register rm, uint32_t shift_imm, void Thumb2Assembler::Lsr(Register rd, Register rm, uint32_t shift_imm, bool setcc, Condition cond) { - CHECK_NE(shift_imm, 0u); // Do not use Lsr if no shift is wanted. + CHECK(1u <= shift_imm && shift_imm <= 32u); if (shift_imm == 32) shift_imm = 0; // Comply to UAL syntax. CheckCondition(cond); EmitShift(rd, rm, LSR, shift_imm, setcc); @@ -2227,7 +2227,7 @@ void Thumb2Assembler::Lsr(Register rd, Register rm, uint32_t shift_imm, void Thumb2Assembler::Asr(Register rd, Register rm, uint32_t shift_imm, bool setcc, Condition cond) { - CHECK_NE(shift_imm, 0u); // Do not use Asr if no shift is wanted. + CHECK(1u <= shift_imm && shift_imm <= 32u); if (shift_imm == 32) shift_imm = 0; // Comply to UAL syntax. CheckCondition(cond); EmitShift(rd, rm, ASR, shift_imm, setcc); @@ -2236,7 +2236,7 @@ void Thumb2Assembler::Asr(Register rd, Register rm, uint32_t shift_imm, void Thumb2Assembler::Ror(Register rd, Register rm, uint32_t shift_imm, bool setcc, Condition cond) { - CHECK_NE(shift_imm, 0u); // Use Rrx instruction. + CHECK(1u <= shift_imm && shift_imm <= 31u); CheckCondition(cond); EmitShift(rd, rm, ROR, shift_imm, setcc); } |