diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-24 18:58:58 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-03-24 18:58:58 +0000 |
| commit | 21be42575a11522f5b73d88da65f681711c335a0 (patch) | |
| tree | bcc127f2ba58f61140e326dd7155f9c73496fb01 | |
| parent | 98dc4c05ea0fbbbe82ba20f159e05527fa0583f0 (diff) | |
| download | gcc-21be42575a11522f5b73d88da65f681711c335a0.tar.gz | |
PR debug/48204
* simplify-rtx.c (simplify_const_unary_operation): Call
real_convert when changing mode class with FLOAT_EXTEND.
* gcc.dg/dfp/pr48204.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171423 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 8 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/dfp/pr48204.c | 10 |
4 files changed, 27 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 046aea78990..4e2732a9c0d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-03-24 Jakub Jelinek <jakub@redhat.com> + + PR debug/48204 + * simplify-rtx.c (simplify_const_unary_operation): Call + real_convert when changing mode class with FLOAT_EXTEND. + 2011-03-24 Nick Clifton <nickc@redhat.com> * config/rx/rx.h (LABEL_ALIGN_FOR_BARRIER): Define. diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 4a8e3c61667..847a4bb6ecf 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1526,7 +1526,8 @@ simplify_const_unary_operation (enum rtx_code code, enum machine_mode mode, } else if (GET_CODE (op) == CONST_DOUBLE - && SCALAR_FLOAT_MODE_P (mode)) + && SCALAR_FLOAT_MODE_P (mode) + && SCALAR_FLOAT_MODE_P (GET_MODE (op))) { REAL_VALUE_TYPE d, t; REAL_VALUE_FROM_CONST_DOUBLE (d, op); @@ -1549,7 +1550,10 @@ simplify_const_unary_operation (enum rtx_code code, enum machine_mode mode, d = real_value_truncate (mode, d); break; case FLOAT_EXTEND: - /* All this does is change the mode. */ + /* All this does is change the mode, unless changing + mode class. */ + if (GET_MODE_CLASS (mode) != GET_MODE_CLASS (GET_MODE (op))) + real_convert (&d, mode, &d); break; case FIX: real_arithmetic (&d, FIX_TRUNC_EXPR, &d, NULL); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b7cad7f297b..c01c7cbc149 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-03-24 Jakub Jelinek <jakub@redhat.com> + + PR debug/48204 + * gcc.dg/dfp/pr48204.c: New test. + 2011-03-24 Steve Ellcey <sje@cup.hp.com> PR target/48209 diff --git a/gcc/testsuite/gcc.dg/dfp/pr48204.c b/gcc/testsuite/gcc.dg/dfp/pr48204.c new file mode 100644 index 00000000000..7b421581e6e --- /dev/null +++ b/gcc/testsuite/gcc.dg/dfp/pr48204.c @@ -0,0 +1,10 @@ +/* PR debug/48204 */ +/* { dg-do compile } */ +/* { dg-options "-O -fno-tree-ccp -fno-tree-dominator-opts -fno-tree-fre -g" } */ + +void +foo (void) +{ + float cf = 3.0f; + _Decimal64 d64 = cf; +} |