Re: [PATCH] PR49452, prevent post reload combining cross blockage insn

2011-09-19 Thread Eric Botcazou
> 2011-09-19 Wei Guozhi > > PR 49452 > * postreload.c (reload_combine): Invalidate use information when > across volatile insn. PR rtl-optimization/49452, otherwise I'm not sure the commit will be xref'ed. -- Eric Botcazou

Re: [PATCH] PR49452, prevent post reload combining cross blockage insn

2011-09-19 Thread Jeff Law
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 09/19/11 02:51, Carrot Wei wrote: > Hi > > We should not combine insns cross volatile insns. Combine.c already > does this check, postreload should also do so. > > Bootstrapped and regtested on x86_64-unknown-linux-gnu. Regtested > on arm qemu. >

[PATCH] PR49452, prevent post reload combining cross blockage insn

2011-09-19 Thread Carrot Wei
Hi We should not combine insns cross volatile insns. Combine.c already does this check, postreload should also do so. Bootstrapped and regtested on x86_64-unknown-linux-gnu. Regtested on arm qemu. thanks Carrot ChangeLog: 2011-09-19 Wei Guozhi PR 49452 * postreload.c (reloa