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Side by Side Diff: src/DartARM32/assembler_arm.cc

Issue 1624383004: Add VMOV(immediate) instructions to the ARM assembler. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fix issues in previous patch. Created 4 years, 10 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 // 4 //
5 // This is forked from Dart revision df52deea9f25690eb8b66c5995da92b70f7ac1fe 5 // This is forked from Dart revision df52deea9f25690eb8b66c5995da92b70f7ac1fe
6 // Please update the (git) revision if we merge changes from Dart. 6 // Please update the (git) revision if we merge changes from Dart.
7 // https://code.google.com/p/dart/wiki/GettingTheSource 7 // https://code.google.com/p/dart/wiki/GettingTheSource
8 8
9 #include "vm/globals.h" // NOLINT 9 #include "vm/globals.h" // NOLINT
10 #if defined(TARGET_ARCH_ARM) 10 #if defined(TARGET_ARCH_ARM)
(...skipping 910 matching lines...) Expand 10 before | Expand all | Expand 10 after
921 921
922 void Assembler::vmovs(SRegister sd, SRegister sm, Condition cond) { 922 void Assembler::vmovs(SRegister sd, SRegister sm, Condition cond) {
923 EmitVFPsss(cond, B23 | B21 | B20 | B6, sd, S0, sm); 923 EmitVFPsss(cond, B23 | B21 | B20 | B6, sd, S0, sm);
924 } 924 }
925 925
926 926
927 void Assembler::vmovd(DRegister dd, DRegister dm, Condition cond) { 927 void Assembler::vmovd(DRegister dd, DRegister dm, Condition cond) {
928 EmitVFPddd(cond, B23 | B21 | B20 | B6, dd, D0, dm); 928 EmitVFPddd(cond, B23 | B21 | B20 | B6, dd, D0, dm);
929 } 929 }
930 930
931 931 #if 0
932 // Moved to Arm32::AssemblerARM32::vmovs()
932 bool Assembler::vmovs(SRegister sd, float s_imm, Condition cond) { 933 bool Assembler::vmovs(SRegister sd, float s_imm, Condition cond) {
933 if (TargetCPUFeatures::arm_version() != ARMv7) { 934 if (TargetCPUFeatures::arm_version() != ARMv7) {
934 return false; 935 return false;
935 } 936 }
936 uint32_t imm32 = bit_cast<uint32_t, float>(s_imm); 937 uint32_t imm32 = bit_cast<uint32_t, float>(s_imm);
937 if (((imm32 & ((1 << 19) - 1)) == 0) && 938 if (((imm32 & ((1 << 19) - 1)) == 0) &&
938 ((((imm32 >> 25) & ((1 << 6) - 1)) == (1 << 5)) || 939 ((((imm32 >> 25) & ((1 << 6) - 1)) == (1 << 5)) ||
939 (((imm32 >> 25) & ((1 << 6) - 1)) == ((1 << 5) -1)))) { 940 (((imm32 >> 25) & ((1 << 6) - 1)) == ((1 << 5) -1)))) {
940 uint8_t imm8 = ((imm32 >> 31) << 7) | (((imm32 >> 29) & 1) << 6) | 941 uint8_t imm8 = ((imm32 >> 31) << 7) | (((imm32 >> 29) & 1) << 6) |
941 ((imm32 >> 19) & ((1 << 6) -1)); 942 ((imm32 >> 19) & ((1 << 6) -1));
942 EmitVFPsss(cond, B23 | B21 | B20 | ((imm8 >> 4)*B16) | (imm8 & 0xf), 943 EmitVFPsss(cond, B23 | B21 | B20 | ((imm8 >> 4)*B16) | (imm8 & 0xf),
943 sd, S0, S0); 944 sd, S0, S0);
944 return true; 945 return true;
945 } 946 }
946 return false; 947 return false;
947 } 948 }
948 949
949 950 // Moved to Arm32::AssemblerARM32::vmovd()
950 bool Assembler::vmovd(DRegister dd, double d_imm, Condition cond) { 951 bool Assembler::vmovd(DRegister dd, double d_imm, Condition cond) {
951 if (TargetCPUFeatures::arm_version() != ARMv7) { 952 if (TargetCPUFeatures::arm_version() != ARMv7) {
952 return false; 953 return false;
953 } 954 }
954 uint64_t imm64 = bit_cast<uint64_t, double>(d_imm); 955 uint64_t imm64 = bit_cast<uint64_t, double>(d_imm);
955 if (((imm64 & ((1LL << 48) - 1)) == 0) && 956 if (((imm64 & ((1LL << 48) - 1)) == 0) &&
956 ((((imm64 >> 54) & ((1 << 9) - 1)) == (1 << 8)) || 957 ((((imm64 >> 54) & ((1 << 9) - 1)) == (1 << 8)) ||
957 (((imm64 >> 54) & ((1 << 9) - 1)) == ((1 << 8) -1)))) { 958 (((imm64 >> 54) & ((1 << 9) - 1)) == ((1 << 8) -1)))) {
958 uint8_t imm8 = ((imm64 >> 63) << 7) | (((imm64 >> 61) & 1) << 6) | 959 uint8_t imm8 = ((imm64 >> 63) << 7) | (((imm64 >> 61) & 1) << 6) |
959 ((imm64 >> 48) & ((1 << 6) -1)); 960 ((imm64 >> 48) & ((1 << 6) -1));
960 EmitVFPddd(cond, B23 | B21 | B20 | ((imm8 >> 4)*B16) | B8 | (imm8 & 0xf), 961 EmitVFPddd(cond, B23 | B21 | B20 | ((imm8 >> 4)*B16) | B8 | (imm8 & 0xf),
961 dd, D0, D0); 962 dd, D0, D0);
962 return true; 963 return true;
963 } 964 }
964 return false; 965 return false;
965 } 966 }
966 967
967 #if 0
968 // Moved to Arm32::AssemblerARM32::vadds() 968 // Moved to Arm32::AssemblerARM32::vadds()
969 void Assembler::vadds(SRegister sd, SRegister sn, SRegister sm, 969 void Assembler::vadds(SRegister sd, SRegister sn, SRegister sm,
970 Condition cond) { 970 Condition cond) {
971 EmitVFPsss(cond, B21 | B20, sd, sn, sm); 971 EmitVFPsss(cond, B21 | B20, sd, sn, sm);
972 } 972 }
973 973
974 // Moved to Arm32::AssemblerARM32::vaddd() 974 // Moved to Arm32::AssemblerARM32::vaddd()
975 void Assembler::vaddd(DRegister dd, DRegister dn, DRegister dm, 975 void Assembler::vaddd(DRegister dd, DRegister dn, DRegister dm,
976 Condition cond) { 976 Condition cond) {
977 EmitVFPddd(cond, B21 | B20, dd, dn, dm); 977 EmitVFPddd(cond, B21 | B20, dd, dn, dm);
(...skipping 2710 matching lines...) Expand 10 before | Expand all | Expand 10 after
3688 3688
3689 3689
3690 const char* Assembler::FpuRegisterName(FpuRegister reg) { 3690 const char* Assembler::FpuRegisterName(FpuRegister reg) {
3691 ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters)); 3691 ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters));
3692 return fpu_reg_names[reg]; 3692 return fpu_reg_names[reg];
3693 } 3693 }
3694 3694
3695 } // namespace dart 3695 } // namespace dart
3696 3696
3697 #endif // defined TARGET_ARCH_ARM 3697 #endif // defined TARGET_ARCH_ARM
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