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org_pipermail_cfe
2019 Aug 21
2
Floating point operations with specific rounding and exception properties
...constrained intrinsics as
>> well. Such decision should prevent from undesired moves of fp operations.
>> The discussion is in the thread
>> http://lists.llvm.org/pipermail/cfe-dev/2017-August/055325.html
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.llvm.org_pipermail_cfe-2Ddev_2017-2DAugust_055325.html&d=DwMFaQ&c=slrrB7dE8n7gBJbeO0g-IQ&r=O_4M49EtSpZ_-BQYeigzGv0P4__noMcSu2RYEjS1vKs&m=fTfAlQ0FHnQez3xiw8VnBL1XaxmBqn_-WD5E0mh4GrY&s=l5-qb-0vYUlkEbQT46x1HYz9WtpgOLaojeUkghA_QNg&e=>,
>> the relevant example is:
>>
>> double f(d...
2019 Aug 20
3
Floating point operations with specific rounding and exception properties
Hi all,
During the review of https://reviews.llvm.org/D65997 an issue was revealed,
which relates to the decision of how compiler should represents constrained
floating point operations.
If a floating point operation requires rounding mode or exception behavior
different from the default, it should be represented by constrained
intrinsic (