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comparison src/cpu/x86/vm/macroAssembler_x86.cpp @ 7430:d02120b7a34f

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8004250: replace AbstractAssembler a_byte/a_long with emit_int8/emit_int32 Reviewed-by: jrose, kvn, twisti Contributed-by: Morris Meyer <morris.meyer@oracle.com>
author twisti
date Thu, 20 Dec 2012 18:53:44 -0800
parents 2c7f594145dc
children 00af3a3a8df4
comparison
equal deleted inserted replaced
7429:a46457045d66 7430:d02120b7a34f
1021 movptr(dst, rscratch1); 1021 movptr(dst, rscratch1);
1022 } 1022 }
1023 1023
1024 void MacroAssembler::leave() { 1024 void MacroAssembler::leave() {
1025 // %%% is this really better? Why not on 32bit too? 1025 // %%% is this really better? Why not on 32bit too?
1026 emit_byte(0xC9); // LEAVE 1026 emit_int8((unsigned char)0xC9); // LEAVE
1027 } 1027 }
1028 1028
1029 void MacroAssembler::lneg(Register hi, Register lo) { 1029 void MacroAssembler::lneg(Register hi, Register lo) {
1030 ShouldNotReachHere(); // 64bit doesn't use two regs 1030 ShouldNotReachHere(); // 64bit doesn't use two regs
1031 negq(lo); 1031 negq(lo);
2110 // A 5 byte nop that is safe for patching (see patch_verified_entry) 2110 // A 5 byte nop that is safe for patching (see patch_verified_entry)
2111 void MacroAssembler::fat_nop() { 2111 void MacroAssembler::fat_nop() {
2112 if (UseAddressNop) { 2112 if (UseAddressNop) {
2113 addr_nop_5(); 2113 addr_nop_5();
2114 } else { 2114 } else {
2115 emit_byte(0x26); // es: 2115 emit_int8(0x26); // es:
2116 emit_byte(0x2e); // cs: 2116 emit_int8(0x2e); // cs:
2117 emit_byte(0x64); // fs: 2117 emit_int8(0x64); // fs:
2118 emit_byte(0x65); // gs: 2118 emit_int8(0x65); // gs:
2119 emit_byte(0x90); 2119 emit_int8((unsigned char)0x90);
2120 } 2120 }
2121 } 2121 }
2122 2122
2123 void MacroAssembler::fcmp(Register tmp) { 2123 void MacroAssembler::fcmp(Register tmp) {
2124 fcmp(tmp, 1, true, true); 2124 fcmp(tmp, 1, true, true);
2532 const int short_size = 2; 2532 const int short_size = 2;
2533 const int long_size = 6; 2533 const int long_size = 6;
2534 int offs = (intptr_t)dst.target() - ((intptr_t)pc()); 2534 int offs = (intptr_t)dst.target() - ((intptr_t)pc());
2535 if (dst.reloc() == relocInfo::none && is8bit(offs - short_size)) { 2535 if (dst.reloc() == relocInfo::none && is8bit(offs - short_size)) {
2536 // 0111 tttn #8-bit disp 2536 // 0111 tttn #8-bit disp
2537 emit_byte(0x70 | cc); 2537 emit_int8(0x70 | cc);
2538 emit_byte((offs - short_size) & 0xFF); 2538 emit_int8((offs - short_size) & 0xFF);
2539 } else { 2539 } else {
2540 // 0000 1111 1000 tttn #32-bit disp 2540 // 0000 1111 1000 tttn #32-bit disp
2541 emit_byte(0x0F); 2541 emit_int8(0x0F);
2542 emit_byte(0x80 | cc); 2542 emit_int8((unsigned char)(0x80 | cc));
2543 emit_long(offs - long_size); 2543 emit_long(offs - long_size);
2544 } 2544 }
2545 } else { 2545 } else {
2546 #ifdef ASSERT 2546 #ifdef ASSERT
2547 warning("reversing conditional branch"); 2547 warning("reversing conditional branch");