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| author | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-07-20 17:47:03 +0000 |
|---|---|---|
| committer | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-07-20 17:47:03 +0000 |
| commit | 90e23c1b4b92b490139d1e4524d24306685f767e (patch) | |
| tree | 80b132f48254c998cfcc24e34efdde11c02cd987 | |
| parent | fad8575f6045085a11d2414a231f9ec9e96ac4eb (diff) | |
| download | ppe42-gcc-90e23c1b4b92b490139d1e4524d24306685f767e.tar.gz ppe42-gcc-90e23c1b4b92b490139d1e4524d24306685f767e.zip | |
* combine.c (combine_simplify_rtx): Generate a new shift operation
when simplifying the first operand of a (neg (ashift)) expression.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44202 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/combine.c | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bfa00fa5d82..768715ea0e4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-07-20 Diego Novillo <dnovillo@redhat.com> + + * combine.c (combine_simplify_rtx): Generate a new shift operation + when simplifying the first operand of a (neg (ashift)) expression. + 2001-07-20 Roman Lechtchinsky <rl@cs.tu-berlin.de> * regclass.c (N_REG_INTS): Use only 32 bits per element. diff --git a/gcc/combine.c b/gcc/combine.c index 8658aadbddb..724e9ef1397 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3921,10 +3921,7 @@ combine_simplify_rtx (x, op0_mode, last, in_dest) temp = simplify_unary_operation (NEG, mode, XEXP (XEXP (x, 0), 0), mode); if (temp) - { - SUBST (XEXP (XEXP (x, 0), 0), temp); - return XEXP (x, 0); - } + return gen_binary (ASHIFT, mode, temp, XEXP (XEXP (x, 0), 1)); } temp = expand_compound_operation (XEXP (x, 0)); |
