Displaying 2 results from an estimated 2 matches for "r282259".
2017 Mar 15
3
[RFC] FP Contract = fast?
On 15 March 2017 at 14:58, Hal Finkel <hfinkel at anl.gov> wrote:
> When you reverted r282259 in 282289, you also reverted the functional fix
> to make the command-line option actually work. Right now it is broken.
> Regardless of what else we do, we should fix this (we should probably
> recommit r282259, with the default flipped, to pick up the fixes).
We should run check-all and...
2017 Mar 15
5
[RFC] FP Contract = fast?
Folks,
I've been asking around people about the state of FP contract, which
seems to be "on" but it's not really behaving like it, at least not as
I would expect:
int foo(float a, float b, float c) { return a*b+c; }
$ clang -target aarch64-linux-gnu -O2 -S fma.c -ffp-contract=on -o -
(...)
fmul s0, s0, s1
fadd s0, s0, s2
(...)
$ clang -target aarch64-linux-gnu -O2 -S fma.c