RE: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Ajit Kumar Agarwal
-Original Message- From: Richard Sandiford [mailto:richard.sandif...@arm.com] Sent: Monday, September 22, 2014 4:56 PM To: Ajit Kumar Agarwal Cc: Jeff Law; gcc-patches@gcc.gnu.org Subject: Re: [PATCH 0/5] Fix handling of word subregs of wide registers Ajit Kumar Agarwal writes: > J

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Richard Sandiford
Andrew Pinski writes: > On Thu, Sep 18, 2014 at 3:07 AM, Richard Sandiford > wrote: >> This series is a cleaned-up version of: >> >> https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html >> >> The underlying problem is that the semantics of subregs depend on the >> word size. You can't have a sub

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Richard Sandiford
Ajit Kumar Agarwal writes: > Jeff Law writes: >> On 09/19/14 01:23, Richard Sandiford wrote: >>> Jeff Law writes: On 09/18/14 04:07, Richard Sandiford wrote: > This series is a cleaned-up version of: > > https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html > > The unde

RE: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Ajit Kumar Agarwal
-Original Message- From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches-ow...@gcc.gnu.org] On Behalf Of Richard Sandiford Sent: Monday, September 22, 2014 12:54 PM To: Jeff Law Cc: gcc-patches@gcc.gnu.org Subject: Re: [PATCH 0/5] Fix handling of word subregs of wide registers Jeff

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Andrew Pinski
On Thu, Sep 18, 2014 at 3:07 AM, Richard Sandiford wrote: > This series is a cleaned-up version of: > > https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html > > The underlying problem is that the semantics of subregs depend on the > word size. You can't have a subreg for byte 2 of a 4-byte word,

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-22 Thread Richard Sandiford
Jeff Law writes: > On 09/19/14 01:23, Richard Sandiford wrote: >> Jeff Law writes: >>> On 09/18/14 04:07, Richard Sandiford wrote: This series is a cleaned-up version of: https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html The underlying problem is that the semantics o

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-19 Thread Jeff Law
On 09/19/14 01:23, Richard Sandiford wrote: Jeff Law writes: On 09/18/14 04:07, Richard Sandiford wrote: This series is a cleaned-up version of: https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html The underlying problem is that the semantics of subregs depend on the word size. You can't

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-19 Thread Jeff Law
On 09/19/14 01:23, Richard Sandiford wrote: Jeff Law writes: On 09/18/14 04:07, Richard Sandiford wrote: This series is a cleaned-up version of: https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html The underlying problem is that the semantics of subregs depend on the word size. You can't

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-19 Thread Richard Sandiford
Jeff Law writes: > On 09/18/14 04:07, Richard Sandiford wrote: >> This series is a cleaned-up version of: >> >> https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html >> >> The underlying problem is that the semantics of subregs depend on the >> word size. You can't have a subreg for byte 2 of a 4

Re: [PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-18 Thread Jeff Law
On 09/18/14 04:07, Richard Sandiford wrote: This series is a cleaned-up version of: https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html The underlying problem is that the semantics of subregs depend on the word size. You can't have a subreg for byte 2 of a 4-byte word, say, but you can have

[PATCH 0/5] Fix handling of word subregs of wide registers

2014-09-18 Thread Richard Sandiford
This series is a cleaned-up version of: https://gcc.gnu.org/ml/gcc/2014-03/msg00163.html The underlying problem is that the semantics of subregs depend on the word size. You can't have a subreg for byte 2 of a 4-byte word, say, but you can have a subreg for word 2 of a 4-word value (as well