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Re: FAIL: gcc.c-torture/execute/950628-1.c execution, -O1
- To: rth at redhat dot com
- Subject: Re: FAIL: gcc.c-torture/execute/950628-1.c execution, -O1
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Date: Wed, 24 Jan 01 13:37:58 EST
- Cc: gcc-patches at gcc dot gnu dot org
Look again.
/* If MEM is an unchanging read, then it can't possibly conflict with
the store to X, because there is at most one store to MEM, and it must
have occurred somewhere before MEM. */
if (! writep && RTX_UNCHANGING_P (mem))
return 0;
I hadn't gotten down that far.
I think that's wrong, or at least dubious.