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-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/c-typeck.c6
-rw-r--r--gcc/testsuite/ChangeLog4
-rw-r--r--gcc/testsuite/gcc.dg/dfp/usual-arith-conv-bad-2.c14
4 files changed, 26 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 26d474df623..0abf554d3b1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-14 Janis Johnson <janis187@us.ibm.com>
+
+ * c-typeck.c (build_binary_op): Return early for error.
+
2007-05-15 Zdenek Dvorak <dvorakz@suse.cz>
* tree-ssa-loop-niter.c (record_estimate): Use GGC_NEW to allocate
diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index fc42389782c..2bf767776ba 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -8148,7 +8148,11 @@ build_binary_op (enum tree_code code, tree orig_op0, tree orig_op1,
int none_complex = (code0 != COMPLEX_TYPE && code1 != COMPLEX_TYPE);
if (shorten || common || short_compare)
- result_type = c_common_type (type0, type1);
+ {
+ result_type = c_common_type (type0, type1);
+ if (result_type == error_mark_node)
+ return error_mark_node;
+ }
/* For certain operations (which identify themselves by shorten != 0)
if both args were extended from the same smaller type,
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 159cee58520..fd3c801a12f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,8 @@
2007-05-14 Janis Johnson <janis187@us.ibm.com>
- * expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.
+ * gcc.dg/dfp/usual-arith-conv-bad.c: New test.
+
+ * gcc.dg/fltconst-pedantic-dfp.c: New test.
PR c/31924
* gcc.dg/fltconst-1.c: New test.
diff --git a/gcc/testsuite/gcc.dg/dfp/usual-arith-conv-bad-2.c b/gcc/testsuite/gcc.dg/dfp/usual-arith-conv-bad-2.c
new file mode 100644
index 00000000000..4693abc90d9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/usual-arith-conv-bad-2.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-std=gnu99" } */
+
+/* This used to result in an ICE. */
+
+extern _Decimal64 x;
+extern int i;
+
+void
+foo (void)
+{
+ if (x <= 2.0) /* { dg-error "mix operands" } */
+ i++;
+}
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