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Remove USE_MACHINE_REGS

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All compilers keep pc in reg_pc now, so it is always 1.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Hiroshi SHIBATAandClaude Opus 5.5 committed 2026-10-06 10:47:16 +09:00
1 parent b732b7d9f2
commit f1888f1530
1 file changed
-8
Notes: git 2026-10-06 01:47:50 +00:00 
Merged: https://github.com/ruby/ruby/pull/19227
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vm_exec.c
-8
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@@ -47,32 +47,25 @@ vm_exec_core(rb_execution_context_t *ec)
#if defined(__GNUC__) && defined(__i386__)
DECL_SC_REG(const VALUE *, pc, "di");
DECL_SC_REG(rb_control_frame_t *, cfp, "si");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && defined(__x86_64__)
DECL_SC_REG(const VALUE *, pc, "14");
DECL_SC_REG(rb_control_frame_t *, cfp, "15");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && (defined(__powerpc64__) || defined(__POWERPC__))
DECL_SC_REG(const VALUE *, pc, "14");
DECL_SC_REG(rb_control_frame_t *, cfp, "15");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && defined(__aarch64__)
DECL_SC_REG(const VALUE *, pc, "19");
DECL_SC_REG(rb_control_frame_t *, cfp, "20");
#define USE_MACHINE_REGS 1
#else
register rb_control_frame_t *reg_cfp;
const VALUE *reg_pc;
#define USE_MACHINE_REGS 1
#endif
#if USE_MACHINE_REGS
#undef RESTORE_REGS
#define RESTORE_REGS() \
{ \
@@ -86,7 +79,6 @@ vm_exec_core(rb_execution_context_t *ec)
#define GET_PC() (reg_pc)
#undef SET_PC
#define SET_PC(x) (reg_cfp->pc = VM_REG_PC = (x))
#endif
#if OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
#include "vmtc.inc"