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| author | nickc <nickc@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-09-24 16:12:44 +0000 |
|---|---|---|
| committer | nickc <nickc@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-09-24 16:12:44 +0000 |
| commit | b911bf3d59e7d01ad67976f2c0b19ad0a85f6cd4 (patch) | |
| tree | 0217b67b781fe5d7bd997af8a7c040a4b1db73ae | |
| parent | 2b9f627de468b9b7e69cc15551ea39be73eb871f (diff) | |
| download | ppe42-gcc-b911bf3d59e7d01ad67976f2c0b19ad0a85f6cd4.tar.gz ppe42-gcc-b911bf3d59e7d01ad67976f2c0b19ad0a85f6cd4.zip | |
Cope with down shifting a 32 bit constant on a 64 bit host.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29655 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/combine.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 587c9505339..b6723ea9039 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +Fri Sep 24 17:10:56 1999 Nick Clifton <nickc@cygnus.com> + + * combine.c (simplify_comparison): Cope with downshifting a 32 bit + constant on a 64 bit host. Patch supplied by Geoffrey Keating + <geoffk@cygnus.com>. + Fri Sep 24 10:48:10 1999 Bernd Schmidt <bernds@cygnus.co.uk> * builtins.c (expand_builtin): Use MD_EXPAND_BUILTIN if defined. diff --git a/gcc/combine.c b/gcc/combine.c index 0e556db4ab9..61d55d0c893 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -10364,10 +10364,10 @@ simplify_comparison (code, pop0, pop1) { /* We must perform a logical shift, not an arithmetic one, as we want the top N bits of C to be zero. */ - unsigned HOST_WIDE_INT temp = const_op; + unsigned HOST_WIDE_INT temp = const_op & GET_MODE_MASK (mode); temp >>= INTVAL (XEXP (op0, 1)); - op1 = GEN_INT (temp); + op1 = GEN_INT (trunc_int_for_mode (temp, mode)); op0 = XEXP (op0, 0); continue; } |
