In gen_vla_sp_restore, use X30 rather than get_reg.

Edmund Grimley Evans committed 10 years ago

Commit 7dddd651 parent 94d8d121 file · +4 −1Browse files

Unified · Split

arm64-gen.c+4−1

@@ -1826,7 +1826,10 @@ ST_FUNC void gen_vla_sp_save(int addr) { · 1825 unmodified lines
1826	1826	}
1827	1827
1828	1828	ST_FUNC void gen_vla_sp_restore(int addr) {
1829		− uint32_t r = intr(get_reg(RC_INT));
	1829	+ // Use x30 because this function can be called when there
	1830	+ // is a live return value in x0 but there is nothing on
	1831	+ // the value stack to prevent get_reg from returning x0.
	1832	+ uint32_t r = 30;
1830	1833	arm64_ldrx(0, 3, r, 29, addr);
1831	1834	o(0x9100001f \| r << 5); // mov sp,x(r)
1832	1835	}