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Author SHA1 Message Date
Serge Pavlov
f4066fa2dd
[clang] Use constant rounding mode for floating literals (#90877) 
Conversion of floating-point literal to binary representation must be
made using constant rounding mode, which can be changed using pragma
FENV_ROUND. For example, the literal "0.1F" should be representes by
either 0.099999994 or 0.100000001 depending on the rounding direction.
 2024-05-17 12:06:34 +07:00
Fangrui Song
c5de4dd1ea [test] %clang_cc1 -emit-llvm: remove redundant -S 
And replace -emit-llvm -o - with -emit-llvm-only
 2024-05-04 17:00:29 -07:00
Serge Pavlov
6314f412a8 [FPEnv] Evaluate constant expressions under non-default rounding modes 
The change implements evaluation of constant floating point expressions
under non-default rounding modes. The main objective was to support
evaluation of global variable initializers, where constant rounding mode
may be specified by `#pragma STDC FENV_ROUND`.

Differential Revision: https://reviews.llvm.org/D87822
 2020-09-26 17:59:39 +07:00