[PATCH] D52323: Add necessary support for storing code-model to module IR.

Fri, 21 Sep 2018 09:40:01 -0700 

cmtice updated this revision to Diff 166492.
cmtice edited the summary of this revision.
cmtice added a comment.

Move include statement from  CodeGenModule.h to CodeGenModule.cpp
Remove incorrect "default" case statement.
Add test for "tiny" code model.


https://reviews.llvm.org/D52323

Files:
  lib/CodeGen/CodeGenModule.cpp
  test/CodeGen/codemodels.c


Index: test/CodeGen/codemodels.c
===================================================================
--- test/CodeGen/codemodels.c
+++ test/CodeGen/codemodels.c
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -emit-llvm  %s -o - | FileCheck %s 
-check-prefix=CHECK-NOMODEL
+// RUN: %clang_cc1 -emit-llvm -mcode-model tiny %s -o - | FileCheck %s 
-check-prefix=CHECK-TINY
+// RUN: %clang_cc1 -emit-llvm -mcode-model small %s -o - | FileCheck %s 
-check-prefix=CHECK-SMALL
+// RUN: %clang_cc1 -emit-llvm -mcode-model kernel %s -o - | FileCheck %s 
-check-prefix=CHECK-KERNEL
+// RUN: %clang_cc1 -emit-llvm -mcode-model medium %s -o - | FileCheck %s 
-check-prefix=CHECK-MEDIUM
+// RUN: %clang_cc1 -emit-llvm -mcode-model large %s -o - | FileCheck %s 
-check-prefix=CHECK-LARGE
+
+// CHECK-TINY: !llvm.module.flags = !{{{.*}}}
+// CHECK-TINY: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 0}
+// CHECK-SMALL: !llvm.module.flags = !{{{.*}}}
+// CHECK-SMALL: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 1}
+// CHECK-KERNEL: !llvm.module.flags = !{{{.*}}}
+// CHECK-KERNEL: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 2}
+// CHECK-MEDIUM: !llvm.module.flags = !{{{.*}}}
+// CHECK-MEDIUM: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 3}
+// CHECK-LARGE: !llvm.module.flags = !{{{.*}}}
+// CHECK-LARGE: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 4}
+// CHECK-NOMODEL-NOT: Code Model
Index: lib/CodeGen/CodeGenModule.cpp
===================================================================
--- lib/CodeGen/CodeGenModule.cpp
+++ lib/CodeGen/CodeGenModule.cpp
@@ -44,6 +44,7 @@
 #include "clang/CodeGen/ConstantInitBuilder.h"
 #include "clang/Frontend/CodeGenOptions.h"
 #include "clang/Sema/SemaDiagnostic.h"
+#include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/IR/CallSite.h"
@@ -53,6 +54,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/ProfileData/InstrProfReader.h"
+#include "llvm/Support/CodeGen.h"
 #include "llvm/Support/ConvertUTF.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MD5.h"
@@ -556,6 +558,20 @@
       getModule().setPIELevel(static_cast<llvm::PIELevel::Level>(PLevel));
   }
 
+  if (getCodeGenOpts().CodeModel.size() > 0) {
+    unsigned CM = llvm::StringSwitch<unsigned>(getCodeGenOpts().CodeModel)
+                  .Case("tiny", llvm::CodeModel::Tiny)
+                  .Case("small", llvm::CodeModel::Small)
+                  .Case("kernel", llvm::CodeModel::Kernel)
+                  .Case("medium", llvm::CodeModel::Medium)
+                  .Case("large", llvm::CodeModel::Large)
+                  .Default(~0u);
+    if (CM != ~0u) {
+      llvm::CodeModel::Model codeModel = 
static_cast<llvm::CodeModel::Model>(CM);
+      getModule().setCodeModel(codeModel);
+    }
+  }
+
   if (CodeGenOpts.NoPLT)
     getModule().setRtLibUseGOT();
 



Index: test/CodeGen/codemodels.c
===================================================================
--- test/CodeGen/codemodels.c
+++ test/CodeGen/codemodels.c
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -emit-llvm  %s -o - | FileCheck %s -check-prefix=CHECK-NOMODEL
+// RUN: %clang_cc1 -emit-llvm -mcode-model tiny %s -o - | FileCheck %s -check-prefix=CHECK-TINY
+// RUN: %clang_cc1 -emit-llvm -mcode-model small %s -o - | FileCheck %s -check-prefix=CHECK-SMALL
+// RUN: %clang_cc1 -emit-llvm -mcode-model kernel %s -o - | FileCheck %s -check-prefix=CHECK-KERNEL
+// RUN: %clang_cc1 -emit-llvm -mcode-model medium %s -o - | FileCheck %s -check-prefix=CHECK-MEDIUM
+// RUN: %clang_cc1 -emit-llvm -mcode-model large %s -o - | FileCheck %s -check-prefix=CHECK-LARGE
+
+// CHECK-TINY: !llvm.module.flags = !{{{.*}}}
+// CHECK-TINY: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 0}
+// CHECK-SMALL: !llvm.module.flags = !{{{.*}}}
+// CHECK-SMALL: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 1}
+// CHECK-KERNEL: !llvm.module.flags = !{{{.*}}}
+// CHECK-KERNEL: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 2}
+// CHECK-MEDIUM: !llvm.module.flags = !{{{.*}}}
+// CHECK-MEDIUM: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 3}
+// CHECK-LARGE: !llvm.module.flags = !{{{.*}}}
+// CHECK-LARGE: !{{[0-9]+}} = !{i32 1, !"Code Model", i32 4}
+// CHECK-NOMODEL-NOT: Code Model
Index: lib/CodeGen/CodeGenModule.cpp
===================================================================
--- lib/CodeGen/CodeGenModule.cpp
+++ lib/CodeGen/CodeGenModule.cpp
@@ -44,6 +44,7 @@
 #include "clang/CodeGen/ConstantInitBuilder.h"
 #include "clang/Frontend/CodeGenOptions.h"
 #include "clang/Sema/SemaDiagnostic.h"
+#include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/IR/CallSite.h"
@@ -53,6 +54,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/ProfileData/InstrProfReader.h"
+#include "llvm/Support/CodeGen.h"
 #include "llvm/Support/ConvertUTF.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MD5.h"
@@ -556,6 +558,20 @@
       getModule().setPIELevel(static_cast<llvm::PIELevel::Level>(PLevel));
   }
 
+  if (getCodeGenOpts().CodeModel.size() > 0) {
+    unsigned CM = llvm::StringSwitch<unsigned>(getCodeGenOpts().CodeModel)
+                  .Case("tiny", llvm::CodeModel::Tiny)
+                  .Case("small", llvm::CodeModel::Small)
+                  .Case("kernel", llvm::CodeModel::Kernel)
+                  .Case("medium", llvm::CodeModel::Medium)
+                  .Case("large", llvm::CodeModel::Large)
+                  .Default(~0u);
+    if (CM != ~0u) {
+      llvm::CodeModel::Model codeModel = static_cast<llvm::CodeModel::Model>(CM);
+      getModule().setCodeModel(codeModel);
+    }
+  }
+
   if (CodeGenOpts.NoPLT)
     getModule().setRtLibUseGOT();
 

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