Displaying 3 results from an estimated 3 matches for "26view".
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2019 Dec 01
0
Workshops of WorldCIST'20 | Deadline: December 6
2019 Oct 01
2
PR43374 - when should comparing NaN values raise a floating point exception?
...=x ? 0 : 1;
> }
>
> should not produce an exception when x is NaN, and hence a vcmp rather than vcmpe instruction should be produced when generating ARM code for this.
>
> https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%3Frev%3D294945%26view%3Drev&data=02%7C01%7CKevin.Neal%40sas.com%7C1c2441d90c5b4d3c4e6408d7467aa4cc%7Cb1c14d5c362545b3a4309552373a0c2f%7C0%7C0%7C637055364875886682&sdata=BeuNr6A9lgTnILxtPIAyGIonkL9SfeFn1sRQ9hb1ayg%3D&reserved=0 introduced support for generating vcmp instead of vcmpe for equality c...
2019 Oct 01
5
PR43374 - when should comparing NaN values raise a floating point exception?
Hi,
I’ve been investigating https://bugs.llvm.org/show_bug.cgi?id=43374, which is about clang/llvm producing code that triggers a floating point exception when x is NaN, when targeting ARM, in the below code example.
int bar(float x) {
return x!=x ? 0 : 1;
}
The C99 standard states in section 7.12.14:
"""
The relational and equality operators support the usual mathematical