[Bug target/55019] Incorrectly use live argument register to save high register in thumb1 prologue

[xguo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55019



--- Comment #3 from xuepeng guo <xguo at gcc dot gnu.org> 2012-10-23 03:49:21 
UTC ---

Author: xguo

Date: Tue Oct 23 03:49:17 2012

New Revision: 192703



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192703

Log:

    gcc/

    PR target/55019

    * config/arm/arm.c (thumb1_expand_prologue): Don't push high regs with

    live argument regs.



    gcc/testsuite/

    PR target/55019

    * gcc.dg/pr55019.c: New.



Added:

    trunk/gcc/testsuite/gcc.dg/pr55019.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/config/arm/arm.c

    trunk/gcc/testsuite/ChangeLog