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* [Bug target/59784] New: Nios2: Wrong code generation for fextsd custom instruction
@ 2014-01-13 10:39 savin.zlobec at gmail dot com
  2014-01-30  5:52 ` [Bug target/59784] " cltang at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: savin.zlobec at gmail dot com @ 2014-01-13 10:39 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59784

            Bug ID: 59784
           Summary: Nios2: Wrong code generation for fextsd custom
                    instruction
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: savin.zlobec at gmail dot com

Created attachment 31819
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31819&action=edit
Fix

The following code:

double f2d(float x) { return (double)x; }

Compiled with -O2 ... -mcustom-frdy=2 ... -mcustom-fextsd=37

Compiles to:

   0:     2009c972      custom     37,r4,r4,zero
   4:     0009c0b2      custom     2,r4,zero,zero
   8:     2005883a      mov     r2,r4
   c:     2807883a      mov     r3,r5
  10:     f800283a      ret

Note the 'custom 37,r4,r4,zero', should be 'custom 37,r5,r4,zero'.

Patch attached.


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug target/59784] Nios2: Wrong code generation for fextsd custom instruction
  2014-01-13 10:39 [Bug target/59784] New: Nios2: Wrong code generation for fextsd custom instruction savin.zlobec at gmail dot com
@ 2014-01-30  5:52 ` cltang at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: cltang at gcc dot gnu.org @ 2014-01-30  5:52 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59784

--- Comment #1 from Chung-Lin Tang <cltang at gcc dot gnu.org> ---
Author: cltang
Date: Thu Jan 30 05:51:30 2014
New Revision: 207297

URL: http://gcc.gnu.org/viewcvs?rev=207297&root=gcc&view=rev
Log:
2014-01-30  Savin Zlobec  <savin.zlobec@gmail.com>

    PR target/59784
    * config/nios2/nios2.c (nios2_fpu_insn_asm): Fix asm output of
    SFmode to DFmode case.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/nios2/nios2.c


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2014-01-13 10:39 [Bug target/59784] New: Nios2: Wrong code generation for fextsd custom instruction savin.zlobec at gmail dot com
2014-01-30  5:52 ` [Bug target/59784] " cltang at gcc dot gnu.org

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