diff options
Diffstat (limited to 'tccgen.c')
| -rw-r--r-- | tccgen.c | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -4794,6 +4794,10 @@ static void block(int *bsym, int *csym, int *case_sym, int *def_sym, } else if (tok == TOK_WHILE) { next(); d = ind; + if (vla_flags & VLA_IN_SCOPE) { + gen_vla_sp_restore(*vla_sp_loc); + vla_flags |= VLA_NEED_NEW_FRAME; + } skip('('); gexpr(); skip(')'); @@ -4958,6 +4962,13 @@ static void block(int *bsym, int *csym, int *case_sym, int *def_sym, /* compute jump */ if (!csym) tcc_error("cannot continue"); + if (vla_flags & VLA_IN_SCOPE) { + /* If VLAs are in use, save the current stack pointer and + reset the stack pointer to what it was at function entry + (label will restore stack pointer in inner scopes) */ + vla_sp_save(); + gen_vla_sp_restore(vla_sp_root_loc); + } *csym = gjmp(*csym); next(); skip(';'); @@ -4980,6 +4991,10 @@ static void block(int *bsym, int *csym, int *case_sym, int *def_sym, skip(';'); d = ind; c = ind; + if (vla_flags & VLA_IN_SCOPE) { + gen_vla_sp_restore(*vla_sp_loc); + vla_flags |= VLA_NEED_NEW_FRAME; + } a = 0; b = 0; if (tok != ';') { @@ -4990,6 +5005,10 @@ static void block(int *bsym, int *csym, int *case_sym, int *def_sym, if (tok != ')') { e = gjmp(0); c = ind; + if (vla_flags & VLA_IN_SCOPE) { + gen_vla_sp_restore(*vla_sp_loc); + vla_flags |= VLA_NEED_NEW_FRAME; + } gexpr(); vpop(); gjmp_addr(d); @@ -5008,6 +5027,10 @@ static void block(int *bsym, int *csym, int *case_sym, int *def_sym, a = 0; b = 0; d = ind; + if (vla_flags & VLA_IN_SCOPE) { + gen_vla_sp_restore(*vla_sp_loc); + vla_flags |= VLA_NEED_NEW_FRAME; + } block(&a, &b, case_sym, def_sym, case_reg, 0); skip(TOK_WHILE); skip('('); |