clang/test/Driver/Ofast.c

   1 // RUN: %clang -c -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
   2 // RUN: %clang -c -O2 -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
   3 // RUN: %clang -c -fno-fast-math -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
   4 // RUN: %clang -c -fno-strict-aliasing -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
   5 // RUN: %clang -c -fno-vectorize -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
   6 // RUN: %clang -c -Ofast -O2 -### -Werror %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-O2 \
   7 // RUN:  %if target={{.*-windows-msvc.*}} %{ --check-prefix=CHECK-OFAST-O2-ALIASING-MSVC %} \
   8 // RUN:  %else %{ --check-prefix=CHECK-OFAST-O2-ALIASING %} %s
   9 // RUN: %clang -c -Ofast -fno-fast-math -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-FAST-MATH %s
  10 // RUN: %clang -c -Ofast -fno-strict-aliasing -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-STRICT-ALIASING %s
  11 // RUN: %clang -c -Ofast -fno-vectorize -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-VECTORIZE %s
  12
  13 // CHECK-OFAST: use '-O3 -ffast-math' for the same behavior, or '-O3' to enable only conforming optimizations
  14 // CHECK-OFAST: -cc1
  15 // CHECK-OFAST-NOT: -relaxed-aliasing
  16 // CHECK-OFAST: -ffast-math
  17 // CHECK-OFAST: -Ofast
  18 // CHECK-OFAST: -vectorize-loops
  19
  20 // Lack of warning about '-Ofast' deprecation is checked via -Werror
  21 // CHECK-OFAST-O2: -cc1
  22 // CHECK-OFAST-O2-ALIASING-NOT: -relaxed-aliasing
  23 // CHECK-OFAST-O2-ALIASING-MSVC: -relaxed-aliasing
  24 // CHECK-OFAST-O2-NOT: -ffast-math
  25 // CHECK-OFAST-O2-NOT: -Ofast
  26 // CHECK-OFAST-O2: -vectorize-loops
  27
  28 // CHECK-OFAST-NO-FAST-MATH: use '-O3 -ffast-math' for the same behavior, or '-O3' to enable only conforming optimizations
  29 // CHECK-OFAST-NO-FAST-MATH: -cc1
  30 // CHECK-OFAST-NO-FAST-MATH-NOT: -relaxed-aliasing
  31 // CHECK-OFAST-NO-FAST-MATH-NOT: -ffast-math
  32 // CHECK-OFAST-NO-FAST-MATH: -Ofast
  33 // CHECK-OFAST-NO-FAST-MATH: -vectorize-loops
  34
  35 // CHECK-OFAST-NO-STRICT-ALIASING: use '-O3 -ffast-math' for the same behavior, or '-O3' to enable only conforming optimizations
  36 // CHECK-OFAST-NO-STRICT-ALIASING: -cc1
  37 // CHECK-OFAST-NO-STRICT-ALIASING: -relaxed-aliasing
  38 // CHECK-OFAST-NO-STRICT-ALIASING: -ffast-math
  39 // CHECK-OFAST-NO-STRICT-ALIASING: -Ofast
  40 // CHECK-OFAST-NO-STRICT-ALIASING: -vectorize-loops
  41
  42 // CHECK-OFAST-NO-VECTORIZE: use '-O3 -ffast-math' for the same behavior, or '-O3' to enable only conforming optimizations
  43 // CHECK-OFAST-NO-VECTORIZE: -cc1
  44 // CHECK-OFAST-NO-VECTORIZE-NOT: -relaxed-aliasing
  45 // CHECK-OFAST-NO-VECTORIZE: -ffast-math
  46 // CHECK-OFAST-NO-VECTORIZE: -Ofast
  47 // CHECK-OFAST-NO-VECTORIZE-NOT: -vectorize-loops