diff options
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/attr-forcesizeopt.c | 26 |
2 files changed, 28 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index b356e640a1..f09332efc6 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -968,6 +968,8 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, if (CodeGenOpts.OptimizeSize) FuncAttrs.addAttribute(llvm::Attributes::OptimizeForSize); + if (CodeGenOpts.OptimizeSize == 2) + FuncAttrs.addAttribute(llvm::Attributes::ForceSizeOpt); if (CodeGenOpts.DisableRedZone) FuncAttrs.addAttribute(llvm::Attributes::NoRedZone); if (CodeGenOpts.NoImplicitFloat) diff --git a/test/CodeGen/attr-forcesizeopt.c b/test/CodeGen/attr-forcesizeopt.c new file mode 100644 index 0000000000..c4e6c4ad81 --- /dev/null +++ b/test/CodeGen/attr-forcesizeopt.c @@ -0,0 +1,26 @@ +// RUN: %clang_cc1 -Oz -emit-llvm %s -o - | FileCheck %s -check-prefix=Oz +// RUN: %clang_cc1 -O0 -emit-llvm %s -o - | FileCheck %s -check-prefix=OTHER +// RUN: %clang_cc1 -O1 -emit-llvm %s -o - | FileCheck %s -check-prefix=OTHER +// RUN: %clang_cc1 -O2 -emit-llvm %s -o - | FileCheck %s -check-prefix=OTHER +// RUN: %clang_cc1 -O3 -emit-llvm %s -o - | FileCheck %s -check-prefix=OTHER +// RUN: %clang_cc1 -Os -emit-llvm %s -o - | FileCheck %s -check-prefix=OTHER +// Check that we set the forcesizeopt attribute on each function +// when Oz optimization level is set. + +int test1() { + return 42; +// Oz: @test1{{.*}}forcesizeopt +// Oz: ret +// OTHER: @test1 +// OTHER-NOT: forcesizeopt +// OTHER: ret +} + +int test2() { + return 42; +// Oz: @test2{{.*}}forcesizeopt +// Oz: ret +// OTHER: @test2 +// OTHER-NOT: forcesizeopt +// OTHER: ret +} |