commit e8b2140e99edd1e09f417b71dee39b9bb6ff3504
author Michael Jones <michaelrj@google.com> Thu Jan 28 23:53:27 2021 +0000
committer Copybara-Service <copybara-worker@google.com> Fri Feb 05 01:24:26 2021 -0800
tree 63d3c33ada9bf0c900d9310b5f8f7ddba737b90a
parent e55a1ef51351179527d7cace4cdcc346bb38838f

[libc][NFC] Add a few casts to suppress loss of precision warnings

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D95646

GitOrigin-RevId: d4eea5cf0f5d27d978184d70ce3a94e95dad8f01

utils/FPUtil/x86_64/FEnv.h

diff --git a/utils/FPUtil/x86_64/FEnv.h b/utils/FPUtil/x86_64/FEnv.h
index 9e0e2be..08379fd 100644
--- a/utils/FPUtil/x86_64/FEnv.h
+++ b/utils/FPUtil/x86_64/FEnv.h
@@ -290,11 +290,13 @@
     return 1; // To indicate failure
   }
 
-  uint16_t x87Value = bitValue << internal::X87RoundingControlBitPosition;
+  uint16_t x87Value = static_cast<uint16_t>(
+      bitValue << internal::X87RoundingControlBitPosition);
   uint16_t x87Control = internal::getX87ControlWord();
-  x87Control =
-      (x87Control & ~(0x3 << internal::X87RoundingControlBitPosition)) |
-      x87Value;
+  x87Control = static_cast<uint16_t>(
+      (x87Control &
+       ~(uint16_t(0x3) << internal::X87RoundingControlBitPosition)) |
+      x87Value);
   internal::writeX87ControlWord(x87Control);
 
   uint32_t mxcsrValue = bitValue << internal::MXCSRRoundingControlBitPosition;