diff options
Diffstat (limited to 'gcc48-pr80692.patch')
| -rw-r--r-- | gcc48-pr80692.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc48-pr80692.patch b/gcc48-pr80692.patch new file mode 100644 index 0000000..2e3e352 --- /dev/null +++ b/gcc48-pr80692.patch @@ -0,0 +1,53 @@ +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 |