54 lines
1.1 KiB
Diff
54 lines
1.1 KiB
Diff
2017-06-27 Segher Boessenkool <segher@kernel.crashing.org>
|
|
|
|
Backport from trunk
|
|
2017-05-17 Segher Boessenkool <segher@kernel.crashing.org>
|
|
|
|
PR middle-end/80692
|
|
* real.c (do_compare): Give decimal_do_compare preference over
|
|
comparing just the signs.
|
|
|
|
* gcc.c-torture/execute/pr80692.c: New testcase.
|
|
|
|
--- gcc/real.c
|
|
+++ gcc/real.c
|
|
@@ -950,12 +950,12 @@ do_compare (const REAL_VALUE_TYPE *a, const REAL_VALUE_TYPE *b,
|
|
gcc_unreachable ();
|
|
}
|
|
|
|
- if (a->sign != b->sign)
|
|
- return -a->sign - -b->sign;
|
|
-
|
|
if (a->decimal || b->decimal)
|
|
return decimal_do_compare (a, b, nan_result);
|
|
|
|
+ if (a->sign != b->sign)
|
|
+ return -a->sign - -b->sign;
|
|
+
|
|
if (REAL_EXP (a) > REAL_EXP (b))
|
|
ret = 1;
|
|
else if (REAL_EXP (a) < REAL_EXP (b))
|
|
--- /dev/null
|
|
+++ gcc/testsuite/gcc.c-torture/execute/pr80692.c
|
|
@@ -0,0 +1,11 @@
|
|
+int main () {
|
|
+ _Decimal64 d64 = -0.DD;
|
|
+
|
|
+ if (d64 != 0.DD)
|
|
+ __builtin_abort ();
|
|
+
|
|
+ if (d64 != -0.DD)
|
|
+ __builtin_abort ();
|
|
+
|
|
+ return 0;
|
|
+}
|
|
--- /dev/null
|
|
+++ gcc/testsuite/gcc.c-torture/execute/pr80692.x
|
|
@@ -0,0 +1,7 @@
|
|
+load_lib target-supports.exp
|
|
+
|
|
+if { ! [check_effective_target_dfp] } {
|
|
+ return 1
|
|
+}
|
|
+
|
|
+return 0
|