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| author | Marek Michalkiewicz <marekm@linux.org.pl> | 2001-03-28 19:11:28 +0200 |
|---|---|---|
| committer | Marek Michalkiewicz <marekm@gcc.gnu.org> | 2001-03-28 17:11:28 +0000 |
| commit | 500164d2363d678e4c44a45c8962ca4081e5b218 (patch) | |
| tree | 64ed899563be775df3576f803362bdb675044b05 /gcc | |
| parent | 112333d3e40032c6d3fbf393a247c2b7f8ab9d98 (diff) | |
| download | gcc-500164d2363d678e4c44a45c8962ca4081e5b218.zip gcc-500164d2363d678e4c44a45c8962ca4081e5b218.tar.gz gcc-500164d2363d678e4c44a45c8962ca4081e5b218.tar.bz2 | |
libgcc.S (__mulhi3): Correct tests to exit the loop when multiplier or multiplicand is zero.
* config/avr/libgcc.S (__mulhi3): Correct tests to exit the loop
when multiplier or multiplicand is zero.
From-SVN: r40933
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/avr/libgcc.S | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8c76b2e..2b2ae64 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-03-28 Marek Michalkiewicz <marekm@linux.org.pl> + + * config/avr/libgcc.S (__mulhi3): Correct tests to exit the loop + when multiplier or multiplicand is zero. + 2001-03-28 Bernd Schmidt <bernds@redhat.com> * cselib.c (hash_rtx): Don't do tail recursion elimination by hand. diff --git a/gcc/config/avr/libgcc.S b/gcc/config/avr/libgcc.S index cdf2c3f..b438954 100644 --- a/gcc/config/avr/libgcc.S +++ b/gcc/config/avr/libgcc.S @@ -137,11 +137,13 @@ __mulhi3_skip1: add r_arg2L,r_arg2L ; shift multiplicand adc r_arg2H,r_arg2H - cpc r_arg2L,__zero_reg__ + cp r_arg2L,__zero_reg__ + cpc r_arg2H,__zero_reg__ breq __mulhi3_exit ; while multiplicand != 0 lsr r_arg1H ; gets LSB of multiplier ror r_arg1L + cp r_arg1L,__zero_reg__ cpc r_arg1H,__zero_reg__ brne __mulhi3_loop ; exit if multiplier = 0 __mulhi3_exit: |