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comparison src/share/vm/opto/divnode.cpp @ 294:616a07a75c3c

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6732154: REG: Printing an Image using image/gif doc flavor crashes the VM, Solsparc Summary: delay transform call until uses of t2 are constructed Reviewed-by: never
author rasbold
date Thu, 14 Aug 2008 10:15:29 -0700
parents d1605aabd0a1
children ab075d07f1ba
comparison
equal deleted inserted replaced
293:c3e045194476 294:616a07a75c3c
262 Node *lohi_product = phase->transform(new (phase->C, 3) MulLNode(u_lo, v_hi)); 262 Node *lohi_product = phase->transform(new (phase->C, 3) MulLNode(u_lo, v_hi));
263 Node *lolo_product = phase->transform(new (phase->C, 3) MulLNode(u_lo, v_lo)); 263 Node *lolo_product = phase->transform(new (phase->C, 3) MulLNode(u_lo, v_lo));
264 264
265 Node *t1 = phase->transform(new (phase->C, 3) URShiftLNode(lolo_product, phase->intcon(N / 2))); 265 Node *t1 = phase->transform(new (phase->C, 3) URShiftLNode(lolo_product, phase->intcon(N / 2)));
266 Node *t2 = phase->transform(new (phase->C, 3) AddLNode(hilo_product, t1)); 266 Node *t2 = phase->transform(new (phase->C, 3) AddLNode(hilo_product, t1));
267 Node *t3 = phase->transform(new (phase->C, 3) RShiftLNode(t2, phase->intcon(N / 2))); 267
268 Node *t4 = phase->transform(new (phase->C, 3) AndLNode(t2, phase->longcon(0xFFFFFFFF))); 268 // Construct both t3 and t4 before transforming so t2 doesn't go dead
269 // prematurely.
270 Node *t3 = new (phase->C, 3) RShiftLNode(t2, phase->intcon(N / 2));
271 Node *t4 = new (phase->C, 3) AndLNode(t2, phase->longcon(0xFFFFFFFF));
272 t3 = phase->transform(t3);
273 t4 = phase->transform(t4);
274
269 Node *t5 = phase->transform(new (phase->C, 3) AddLNode(t4, lohi_product)); 275 Node *t5 = phase->transform(new (phase->C, 3) AddLNode(t4, lohi_product));
270 Node *t6 = phase->transform(new (phase->C, 3) RShiftLNode(t5, phase->intcon(N / 2))); 276 Node *t6 = phase->transform(new (phase->C, 3) RShiftLNode(t5, phase->intcon(N / 2)));
271 Node *t7 = phase->transform(new (phase->C, 3) AddLNode(t3, hihi_product)); 277 Node *t7 = phase->transform(new (phase->C, 3) AddLNode(t3, hihi_product));
272 278
273 return new (phase->C, 3) AddLNode(t7, t6); 279 return new (phase->C, 3) AddLNode(t7, t6);