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Improve assertions.

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This commit is contained in:
Mike Pall
2020-06-13 00:52:54 +02:00
parent 8b55054473
commit 8ae5170cdc
71 changed files with 1363 additions and 927 deletions
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12
src/lj_emit_ppc.h
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@@ -41,13 +41,13 @@ static void emit_rot(ASMState *as, PPCIns pi, Reg ra, Reg rs,
static void emit_slwi(ASMState *as, Reg ra, Reg rs, int32_t n)
{
lua_assert(n >= 0 && n < 32);
lj_assertA(n >= 0 && n < 32, "shift out or range");
emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31-n);
}
static void emit_rotlwi(ASMState *as, Reg ra, Reg rs, int32_t n)
{
lua_assert(n >= 0 && n < 32);
lj_assertA(n >= 0 && n < 32, "shift out or range");
emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31);
}
@@ -57,17 +57,17 @@ static void emit_rotlwi(ASMState *as, Reg ra, Reg rs, int32_t n)
#define emit_canremat(ref) ((ref) <= REF_BASE)
/* Try to find a one step delta relative to another constant. */
static int emit_kdelta1(ASMState *as, Reg t, int32_t i)
static int emit_kdelta1(ASMState *as, Reg rd, int32_t i)
{
RegSet work = ~as->freeset & RSET_GPR;
while (work) {
Reg r = rset_picktop(work);
IRRef ref = regcost_ref(as->cost[r]);
lua_assert(r != t);
lj_assertA(r != rd, "dest reg %d not free", rd);
if (ref < ASMREF_L) {
int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
if (checki16(delta)) {
emit_tai(as, PPCI_ADDI, t, r, delta);
emit_tai(as, PPCI_ADDI, rd, r, delta);
return 1;
}
}
@@ -144,7 +144,7 @@ static void emit_condbranch(ASMState *as, PPCIns pi, PPCCC cc, MCode *target)
{
MCode *p = --as->mcp;
ptrdiff_t delta = (char *)target - (char *)p;
lua_assert(((delta + 0x8000) >> 16) == 0);
lj_assertA(((delta + 0x8000) >> 16) == 0, "branch target out of range");
pi ^= (delta & 0x8000) * (PPCF_Y/0x8000);
*p = pi | PPCF_CC(cc) | ((uint32_t)delta & 0xffffu);
}