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From: "meissner at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/67808] LRA ICEs on simple double to long double conversion test case
Date: Tue, 06 Oct 2015 17:21:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67808

--- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Tue Oct  6 17:20:49 2015
New Revision: 228538

URL: https://gcc.gnu.org/viewcvs?rev=228538&root=gcc&view=rev
Log:
[gcc]
2015-10-05  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Peter Bergner  <bergner@vnet.ibm.com>

        PR target/67808
        * config/rs6000/rs6000.md (extenddftf2): In the expander, only
        allow registers, but provide insns for the combiner to create for
        loads from memory. Separate VSX code from non-VSX code. For
        non-VSX code, combine extenddftf2_fprs into extenddftf2 and rename
        externaldftf2_internal to externaldftf2_fprs. Reorder constraints
        so that registers come before memory operations. Drop support from
        converting DFmode to TFmode, if the DFmode value is in a GPR
        register.
        (extenddftf2_fprs): Likewise.
        (extenddftf2_internal): Likewise.
        (extenddftf2_vsx): Likewise.
        (extendsftf2): In the expander, only allow registers, but provide
        insns for the combiner to create for stores and loads.

[gcc/testsuite]
2015-10-05  Michael Meissner  <meissner@linux.vnet.ibm.com>
            Peter Bergner <bergner@vnet.ibm.com>

        PR target/67808
        * gcc.target/powerpc/pr67808.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr67808.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.md
    trunk/gcc/testsuite/ChangeLog