llvm-project

ab6bb1ba - compiler-rt/arm: Check for overflow when adding float denorms (#185245)

compiler-rt/arm: Check for overflow when adding float denorms (#185245) When the sum of two sub-normal values is not also subnormal, we need to set the exponent to one. Test case: static volatile float x = 0x1.362b4p-127; static volatile float x2 = 0x1.362b4p-127 * 2; int main (void) { printf("x %a x2 %a x + x %a\n", x, x2, x + x); return x2 == x + x ? 0 : 1; } Signed-off-by: Keith Packard <keithp@keithp.com>