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Add consistency check on temporaries during a jump

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* lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c,
	lib/jit_arm-cpu.c, lib/jit_arm-vfp.c,
	lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c,
	lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c,
	lib/jit_mips-cpu.c, lib/jit_mips-fpu.c,
	lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c,
	lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c,
	lib/jit_s390x.c, lib/jit_sparc-cpu.c,
	lib/jit_x86-cpu.c, lib/jit_x86-sse.c,
	lib/jit_x86-x87.c: Review generation of all branch
	instructions and always adds the jit_class_nospill
	bitfield for temporary registers that cannot be	spilled
	because the reload would be after a conditional jump; the
	patch only adds an extra assertion. These conditions do
	not happen on documented lightning usage, but can happen
	if one uses the not exported jit_get_reg and jit_unget_reg
	calls and cause enough register starvation.
This commit is contained in:
pcpa 2014-08-16 20:31:55 -03:00
parent 93e3ff38e1
commit b58960638d
20 changed files with 221 additions and 192 deletions
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2
lib/jit_arm-cpu.c
View file

@ -2582,7 +2582,7 @@ _jmpi_p(jit_state_t *_jit, jit_word_t i0)
#if 0
jit_word_t w;
jit_int32_t reg;
reg = jit_get_reg(jit_class_gpr);
reg = jit_get_reg(jit_class_gpr|jit_class_nospill);
w = movi_p(rn(reg), i0);
jmpr(rn(reg));
jit_unget_reg(reg);