[PATCH] D72841: [RFC] Add support for pragma float_control, to control precision and exception behavior at the source level

[Melanie Blower via Phabricator via cfe-commits]

mibintc updated this revision to Diff 244894.
mibintc added a comment.

I found the problem in the #pragma float_control (push/pop) stack, it was just a dumb bug.

I also added -include-pch test cases, and added code to ASTWriter ASTReader to preserve the floatcontrol pragma stack

For 2 of the new floatcontrol test cases, I temporarily added XFAIL because the patch to default -ffp-precise=fast and ffp-contract=on has been withdrawn (will re-commit soon).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72841/new/

https://reviews.llvm.org/D72841

Files:
  clang/docs/LanguageExtensions.rst
  clang/include/clang/AST/Stmt.h
  clang/include/clang/Basic/DiagnosticParseKinds.td
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/include/clang/Basic/LangOptions.def
  clang/include/clang/Basic/LangOptions.h
  clang/include/clang/Basic/PragmaKinds.h
  clang/include/clang/Basic/TokenKinds.def
  clang/include/clang/Parse/Parser.h
  clang/include/clang/Sema/Sema.h
  clang/include/clang/Serialization/ASTBitCodes.h
  clang/include/clang/Serialization/ASTReader.h
  clang/include/clang/Serialization/ASTWriter.h
  clang/lib/CodeGen/CGExprScalar.cpp
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/lib/Parse/ParseDeclCXX.cpp
  clang/lib/Parse/ParsePragma.cpp
  clang/lib/Parse/ParseStmt.cpp
  clang/lib/Parse/Parser.cpp
  clang/lib/Sema/Sema.cpp
  clang/lib/Sema/SemaAttr.cpp
  clang/lib/Sema/SemaExpr.cpp
  clang/lib/Sema/SemaStmt.cpp
  clang/lib/Serialization/ASTReader.cpp
  clang/lib/Serialization/ASTWriter.cpp
  clang/test/CodeGen/constrained-math-builtins.c
  clang/test/CodeGen/fast-math.c
  clang/test/CodeGen/fp-contract-on-pragma.cpp
  clang/test/CodeGen/fp-contract-pragma.cpp
  clang/test/CodeGen/fp-floatcontrol-class.cpp
  clang/test/CodeGen/fp-floatcontrol-pragma.cpp
  clang/test/CodeGen/fp-floatcontrol-stack.cpp
  clang/test/CodeGen/fpconstrained.c
  clang/test/CodeGen/fpconstrained.cpp
  clang/test/CodeGenOpenCL/builtins-amdgcn-dl-insts.cl
  clang/test/CodeGenOpenCL/builtins-amdgcn-gfx9.cl
  clang/test/CodeGenOpenCL/builtins-amdgcn-interp.cl
  clang/test/CodeGenOpenCL/builtins-amdgcn-mfma.cl
  clang/test/CodeGenOpenCL/builtins-amdgcn-vi.cl
  clang/test/CodeGenOpenCL/builtins-amdgcn.cl
  clang/test/CodeGenOpenCL/builtins-f16.cl
  clang/test/CodeGenOpenCL/builtins-r600.cl
  clang/test/CodeGenOpenCL/relaxed-fpmath.cl
  clang/test/CodeGenOpenCL/single-precision-constant.cl
  clang/test/PCH/pragma-floatcontrol.c
  clang/test/Parser/fp-floatcontrol-syntax.cpp
  llvm/include/llvm/IR/IRBuilder.h

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