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| author | Calin Juravle <calin@google.com> | 2015-04-09 12:46:58 +0000 |
|---|---|---|
| committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2015-04-09 12:46:59 +0000 |
| commit | 96159860fc6c4bf68a51a8a57941971f122685d6 (patch) | |
| tree | ef2465ab2d84b9076ab57ad239333910f68abd2b /compiler/utils | |
| parent | 0c51da5db821493bcef4617ccab04ea367ecc444 (diff) | |
| parent | 0f88e87085b7cf6544dadff3f555773966a6853e (diff) | |
| download | art-96159860fc6c4bf68a51a8a57941971f122685d6.zip art-96159860fc6c4bf68a51a8a57941971f122685d6.tar.gz art-96159860fc6c4bf68a51a8a57941971f122685d6.tar.bz2 | |
Merge "Speedup div/rem by constants on x86 and x86_64"
Diffstat (limited to 'compiler/utils')
| -rw-r--r-- | compiler/utils/x86_64/assembler_x86_64.cc | 8 | ||||
| -rw-r--r-- | compiler/utils/x86_64/assembler_x86_64.h | 1 | ||||
| -rw-r--r-- | compiler/utils/x86_64/assembler_x86_64_test.cc | 4 |
3 files changed, 13 insertions, 0 deletions
diff --git a/compiler/utils/x86_64/assembler_x86_64.cc b/compiler/utils/x86_64/assembler_x86_64.cc index 2e0d9e1..30e8218 100644 --- a/compiler/utils/x86_64/assembler_x86_64.cc +++ b/compiler/utils/x86_64/assembler_x86_64.cc @@ -1620,6 +1620,14 @@ void X86_64Assembler::imull(CpuRegister reg) { } +void X86_64Assembler::imulq(CpuRegister reg) { + AssemblerBuffer::EnsureCapacity ensured(&buffer_); + EmitRex64(reg); + EmitUint8(0xF7); + EmitOperand(5, Operand(reg)); +} + + void X86_64Assembler::imull(const Address& address) { AssemblerBuffer::EnsureCapacity ensured(&buffer_); EmitOptionalRex32(address); diff --git a/compiler/utils/x86_64/assembler_x86_64.h b/compiler/utils/x86_64/assembler_x86_64.h index a786a6c..d357a81 100644 --- a/compiler/utils/x86_64/assembler_x86_64.h +++ b/compiler/utils/x86_64/assembler_x86_64.h @@ -468,6 +468,7 @@ class X86_64Assembler FINAL : public Assembler { void imull(CpuRegister reg, const Immediate& imm); void imull(CpuRegister reg, const Address& address); + void imulq(CpuRegister src); void imulq(CpuRegister dst, CpuRegister src); void imulq(CpuRegister reg, const Immediate& imm); void imulq(CpuRegister reg, const Address& address); diff --git a/compiler/utils/x86_64/assembler_x86_64_test.cc b/compiler/utils/x86_64/assembler_x86_64_test.cc index a79bd09..86bdf20 100644 --- a/compiler/utils/x86_64/assembler_x86_64_test.cc +++ b/compiler/utils/x86_64/assembler_x86_64_test.cc @@ -269,6 +269,10 @@ TEST_F(AssemblerX86_64Test, AddlImm) { DriverStr(Repeatri(&x86_64::X86_64Assembler::addl, 4U, "add ${imm}, %{reg}"), "addli"); } +TEST_F(AssemblerX86_64Test, ImulqReg1) { + DriverStr(RepeatR(&x86_64::X86_64Assembler::imulq, "imulq %{reg}"), "imulq"); +} + TEST_F(AssemblerX86_64Test, ImulqRegs) { DriverStr(RepeatRR(&x86_64::X86_64Assembler::imulq, "imulq %{reg2}, %{reg1}"), "imulq"); } |