diff options
Diffstat (limited to 'x86_64-gen.c')
| -rw-r--r-- | x86_64-gen.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/x86_64-gen.c b/x86_64-gen.c index 690236e..0962056 100644 --- a/x86_64-gen.c +++ b/x86_64-gen.c @@ -656,7 +656,8 @@ void gen_offs_sp(int b, int r, int d) } } -/* Return 1 if this function returns via an sret pointer, 0 otherwise */ +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ ST_FUNC int gfunc_sret(CType *vt, CType *ret, int *ret_align) { int size, align; @@ -664,19 +665,19 @@ ST_FUNC int gfunc_sret(CType *vt, CType *ret, int *ret_align) size = type_size(vt, &align); ret->ref = NULL; if (size > 8) { - return 1; + return 0; } else if (size > 4) { ret->t = VT_LLONG; - return 0; + return 1; } else if (size > 2) { ret->t = VT_INT; - return 0; + return 1; } else if (size > 1) { ret->t = VT_SHORT; - return 0; + return 1; } else { ret->t = VT_BYTE; - return 0; + return 1; } } @@ -1056,11 +1057,12 @@ ST_FUNC int classify_x86_64_va_arg(CType *ty) { } } -/* Return 1 if this function returns via an sret pointer, 0 otherwise */ +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ int gfunc_sret(CType *vt, CType *ret, int *ret_align) { int size, align, reg_count; *ret_align = 1; // Never have to re-align return values for x86-64 - return (classify_x86_64_arg(vt, ret, &size, &align, ®_count) == x86_64_mode_memory); + return (classify_x86_64_arg(vt, ret, &size, &align, ®_count) != x86_64_mode_memory); } #define REGN 6 |