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arm64: Fix a case of dead code suppression

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82_nocode_wanted.c:kb_wait_2_1 was miscompiled on arm64.
This commit is contained in:
Michael Matz
2016-12-13 17:23:02 +01:00
parent f5ae4daa5f
commit b5b12b89a0
1 changed files with 6 additions and 4 deletions
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10
tccgen.c
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@ -5819,14 +5819,16 @@ static void block(int *bsym, int *csym, int is_expr)
vla_sp_restore(); vla_sp_restore();
saved_nocode_wanted = nocode_wanted; saved_nocode_wanted = nocode_wanted;
block(&a, &b, 0); block(&a, &b, 0);
nocode_wanted = saved_nocode_wanted;
skip(TOK_WHILE); skip(TOK_WHILE);
skip('('); skip('(');
gsym(b); gsym(b);
gexpr(); gexpr();
c = gvtst(0, 0); if (!nocode_wanted) {
if (!nocode_wanted) c = gvtst(0, 0);
gsym_addr(c, d); gsym_addr(c, d);
} else
vtop--;
nocode_wanted = saved_nocode_wanted;
skip(')'); skip(')');
gsym(a); gsym(a);
skip(';'); skip(';');