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x86-asm: Correctly infer register size for bools

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Register operands of type _Bool weren't correctly getting
the 8-bit sized registers (but rather used the default 32-bit
ones).
This commit is contained in:
Michael Matz
2016-08-08 20:46:16 +02:00
parent 9e0af6d2b5
commit 0381387640
2 changed files with 12 additions and 1 deletions
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3
i386-asm.c
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@ -1478,7 +1478,8 @@ ST_FUNC void subst_asm_operand(CString *add_str,
tcc_error("internal compiler error");
/* choose register operand size */
if ((sv->type.t & VT_BTYPE) == VT_BYTE)
if ((sv->type.t & VT_BTYPE) == VT_BYTE ||
(sv->type.t & VT_BTYPE) == VT_BOOL)
size = 1;
else if ((sv->type.t & VT_BTYPE) == VT_SHORT)
size = 2;