[Bug target/28946] [4.0/4.1 Regression] assembler shifts set the flag ZF, no need to re-test to zero

[uros at gcc dot gnu dot org]

------- Comment #12 from uros at gcc dot gnu dot org  2006-09-15 17:42 -------
Subject: Bug 28946

Author: uros
Date: Fri Sep 15 17:42:40 2006
New Revision: 116979

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116979
Log:
        PR target/28946
        * config/i386/i386.md ("*ashldi3_cconly_rex64", "*ashlsi3_cconly",
        "*ashlhi3_cconly", "*ashlqi3_cconly", "*ashrdi3_one_bit_cconly_rex64",
        "*ashrdi3_cconly_rex64", "*ashrsi3_one_bit_cconly", "*ashrsi3_cconly",
        "*ashrhi3_one_bit_cconly", "*ashrhi3_cconly",
        "*ashrqi3_one_bit_cconly", "*ashrqi3_cconly",
        "*lshrdi3_cconly_one_bit_rex64", "*lshrdi3_cconly_rex64",
        "*lshrsi3_one_bit_cconly", "*lshrsi3_cconly",
        "*lshrhi3_one_bit_cconly", "*lshrhi3_cconly",
        "*lshrqi2_one_bit_cconly", "*lshrqi2_cconly": New patterns to
        implement only CC setting effects of shift instructions.

testsuite/ChangeLog:

        PR target/28946
        * gcc.target/i386/pr28946.c: New test.


Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.target/i386/pr28946.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/config/i386/i386.md
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28946