1.1 --- a/src/cpu/x86/vm/c1_LinearScan_x86.hpp Tue Aug 26 15:49:40 2008 -0700
1.2 +++ b/src/cpu/x86/vm/c1_LinearScan_x86.hpp Wed Aug 27 00:21:55 2008 -0700
1.3 @@ -23,18 +23,29 @@
1.4 */
1.5
1.6 inline bool LinearScan::is_processed_reg_num(int reg_num) {
1.7 +#ifndef _LP64
1.8 // rsp and rbp (numbers 6 ancd 7) are ignored
1.9 assert(FrameMap::rsp_opr->cpu_regnr() == 6, "wrong assumption below");
1.10 assert(FrameMap::rbp_opr->cpu_regnr() == 7, "wrong assumption below");
1.11 assert(reg_num >= 0, "invalid reg_num");
1.12
1.13 return reg_num < 6 || reg_num > 7;
1.14 +#else
1.15 + // rsp and rbp, r10, r15 (numbers 6 ancd 7) are ignored
1.16 + assert(FrameMap::r10_opr->cpu_regnr() == 12, "wrong assumption below");
1.17 + assert(FrameMap::r15_opr->cpu_regnr() == 13, "wrong assumption below");
1.18 + assert(FrameMap::rsp_opr->cpu_regnrLo() == 14, "wrong assumption below");
1.19 + assert(FrameMap::rbp_opr->cpu_regnrLo() == 15, "wrong assumption below");
1.20 + assert(reg_num >= 0, "invalid reg_num");
1.21 +
1.22 + return reg_num < 12 || reg_num > 15;
1.23 +#endif // _LP64
1.24 }
1.25
1.26 inline int LinearScan::num_physical_regs(BasicType type) {
1.27 // Intel requires two cpu registers for long,
1.28 // but requires only one fpu register for double
1.29 - if (type == T_LONG) {
1.30 + if (LP64_ONLY(false &&) type == T_LONG) {
1.31 return 2;
1.32 }
1.33 return 1;
