[PATCH] D88498: [FPEnv] Evaluate initializers in constant rounding mode

[Serge Pavlov via Phabricator via cfe-commits]

sepavloff added inline comments.


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Comment at: clang/test/AST/const-fpfeatures-strict.c:39
+
+// CHECK: @var_04 = {{.*}} %struct.S { float 0x3FF0000020000000 }
+// CHECK: @var_05 = {{.*}} %struct.S { float 0x3FF0000020000000 }
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mibintc wrote:
> I think the initializer for var_04 is evaluated at translation time, therefore the initialization expression would look the same as var_01 above, using default rounding mode.  Same for var_05 and var_06. They have "static duration"
The statement `#pragma STDC FENV_ROUND FE_UPWARD` changes constant rounding mode, so evaluation of the initializer for `var_04` produces different result than in the case of `var_01`, which indeed is evaluated using default rounding mode.


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  https://reviews.llvm.org/D88498/new/

https://reviews.llvm.org/D88498