gh-mirror/mikepaul-LuaJIT
1
0
Fork 0
mirror of https://github.com/LuaJIT/LuaJIT.git synced 2025-02-07 23:24:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Avoid strict aliasing issues.

Browse Source
This commit is contained in:
Mike Pall 2012-07-03 00:03:01 +02:00
parent 0af3f47ba0
commit 2df19049ef
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/lj_snap.c
View File

@ -625,13 +625,13 @@ static void snap_restoredata(GCtrace *T, ExitState *ex,
IRIns *ir = &T->ir[ref]; IRIns *ir = &T->ir[ref];
RegSP rs = ir->prev; RegSP rs = ir->prev;
int32_t *src; int32_t *src;
union { uint64_t u64; float f; } tmp; uint64_t tmp;
if (irref_isk(ref)) { if (irref_isk(ref)) {
if (ir->o == IR_KNUM || ir->o == IR_KINT64) { if (ir->o == IR_KNUM || ir->o == IR_KINT64) {
src = mref(ir->ptr, int32_t); src = mref(ir->ptr, int32_t);
} else if (sz == 8) { } else if (sz == 8) {
tmp.u64 = (uint64_t)(uint32_t)ir->i; tmp = (uint64_t)(uint32_t)ir->i;
src = (int32_t *)&tmp.u64; src = (int32_t *)&tmp;
} else { } else {
src = &ir->i; src = &ir->i;
} }
@ -655,8 +655,8 @@ static void snap_restoredata(GCtrace *T, ExitState *ex,
src = (int32_t *)&ex->fpr[r-RID_MIN_FPR]; src = (int32_t *)&ex->fpr[r-RID_MIN_FPR];
#if LJ_TARGET_PPC #if LJ_TARGET_PPC
if (sz == 4) { /* PPC FPRs are always doubles. */ if (sz == 4) { /* PPC FPRs are always doubles. */
tmp.f = (float)*(double *)src; *(float *)dst = (float)*(double *)src;
src = (int32_t *)&tmp.f; return;
} }
#else #else
if (LJ_BE && sz == 4) src++; if (LJ_BE && sz == 4) src++;