diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index ee27919..0e15def 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -7351,8 +7351,14 @@ known_cond (x, cond, reg, val) if (side_effects_p (x)) return x; - if (cond == EQ && rtx_equal_p (x, reg) && !FLOAT_MODE_P (cond)) + /* If either operand of the condition is a floating point value, + then we have to avoid collapsing an EQ comparison. */ + if (cond == EQ + && rtx_equal_p (x, reg) + && ! FLOAT_MODE_P (GET_MODE (x)) + && ! FLOAT_MODE_P (GET_MODE (val))) return val; + if (cond == UNEQ && rtx_equal_p (x, reg)) return val; |