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x86_64: fix loading of LLOCAL floats 

See also commit 9527c4949f

On x86_64 we need to extend the reg_classes array because load()
is called for (at least) R11 too, which was not part of reg_classes
previously.
master
grischka 2012-03-05 20:19:28 +01:00
parent a35b3059bb
commit ae191c3a61
2 changed files with 9 additions and 5 deletions
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2
tcc.h
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@ -1358,7 +1358,7 @@ ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
#endif
#undef TARGET_DEFS_ONLY
ST_DATA const int reg_classes[NB_REGS];
ST_DATA const int reg_classes[];
/********************************************************/
#undef ST_DATA

12
x86_64-gen.c
View File

@ -36,6 +36,8 @@
#define RC_RDX 0x0010
#define RC_R8 0x0100
#define RC_R9 0x0200
#define RC_R10 0x0400
#define RC_R11 0x0800
#define RC_XMM0 0x0020
#define RC_ST0 0x0040 /* only for long double */
#define RC_IRET RC_RAX /* function return: integer register */
@ -104,19 +106,19 @@ ST_FUNC void gen_le64(int64_t c);
#include "tcc.h"
#include <assert.h>
ST_DATA const int reg_classes[NB_REGS] = {
ST_DATA const int reg_classes[] = {
/* eax */ RC_INT | RC_RAX,
/* ecx */ RC_INT | RC_RCX,
/* edx */ RC_INT | RC_RDX,
/* xmm0 */ RC_FLOAT | RC_XMM0,
/* st0 */ RC_ST0,
#if NB_REGS == 10
0,
0,
0,
RC_INT | RC_R8,
RC_INT | RC_R9,
#endif
RC_INT | RC_R10,
RC_INT | RC_R11
};
static unsigned long func_sub_sp_offset;
@ -367,8 +369,10 @@ void load(int r, SValue *sv)
v1.type.t = VT_PTR;
v1.r = VT_LOCAL | VT_LVAL;
v1.c.ul = fc;
load(r, &v1);
fr = r;
if (!(reg_classes[fr] & RC_INT))
fr = get_reg(RC_INT);
load(fr, &v1);
}
ll = 0;
if ((ft & VT_BTYPE) == VT_FLOAT) {