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Fixup and polish chibicc some more

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Fixes #433
This commit is contained in:
Justine Tunney 2022-06-20 04:32:25 -07:00
parent a988896048
commit f317a47cd8
15 changed files with 315 additions and 253 deletions
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2
third_party/chibicc/asm.c vendored
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@ -285,7 +285,7 @@ static void CouldNotAllocateRegister(AsmOperand *op, const char *kind) {
static void PickAsmRegisters(Asm *a) {
int i, j, m, pick, regset, xmmset, x87sts;
regset = 0b1111111111000111; // exclude bx,sp,bp
regset = 0b1111111111001111; // exclude bx,sp,bp
xmmset = 0b1111111111111111;
x87sts = 0b0000000011111111;
regset ^= regset & a->regclob; // don't allocate from clobber list