[ADT] Micro-optimize and force inlining for string switches.

[oota-llvm.git] / unittests / IR / DominatorTreeTest.cpp

diff --git a/unittests/IR/DominatorTreeTest.cpp b/unittests/IR/DominatorTreeTest.cpp
index 287a944845432d6c900b170d420ed00fd8cf1364..146ec576dba6897413ec8e53ebcfaf396dfa1b66 100644 (file)
--- a/unittests/IR/DominatorTreeTest.cpp
+++ b/unittests/IR/DominatorTreeTest.cpp
@@ -10,6 +10,7 @@
 #include "llvm/IR/Dominators.h"
 #include "llvm/Analysis/PostDominators.h"
 #include "llvm/AsmParser/Parser.h"
+#include "llvm/IR/Constants.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
@@ -174,6 +175,33 @@ namespace llvm {
         EXPECT_EQ(DominatedBBs.size(), 0UL);
         EXPECT_EQ(PostDominatedBBs.size(), 0UL);
 
+        // Check DFS Numbers before
+        EXPECT_EQ(DT->getNode(BB0)->getDFSNumIn(), 0UL);
+        EXPECT_EQ(DT->getNode(BB0)->getDFSNumOut(), 7UL);
+        EXPECT_EQ(DT->getNode(BB1)->getDFSNumIn(), 1UL);
+        EXPECT_EQ(DT->getNode(BB1)->getDFSNumOut(), 2UL);
+        EXPECT_EQ(DT->getNode(BB2)->getDFSNumIn(), 5UL);
+        EXPECT_EQ(DT->getNode(BB2)->getDFSNumOut(), 6UL);
+        EXPECT_EQ(DT->getNode(BB4)->getDFSNumIn(), 3UL);
+        EXPECT_EQ(DT->getNode(BB4)->getDFSNumOut(), 4UL);
+
+        // Reattach block 3 to block 1 and recalculate
+        BB1->getTerminator()->eraseFromParent();
+        BranchInst::Create(BB4, BB3, ConstantInt::getTrue(F.getContext()), BB1);
+        DT->recalculate(F);
+
+        // Check DFS Numbers after
+        EXPECT_EQ(DT->getNode(BB0)->getDFSNumIn(), 0UL);
+        EXPECT_EQ(DT->getNode(BB0)->getDFSNumOut(), 9UL);
+        EXPECT_EQ(DT->getNode(BB1)->getDFSNumIn(), 1UL);
+        EXPECT_EQ(DT->getNode(BB1)->getDFSNumOut(), 4UL);
+        EXPECT_EQ(DT->getNode(BB2)->getDFSNumIn(), 7UL);
+        EXPECT_EQ(DT->getNode(BB2)->getDFSNumOut(), 8UL);
+        EXPECT_EQ(DT->getNode(BB3)->getDFSNumIn(), 2UL);
+        EXPECT_EQ(DT->getNode(BB3)->getDFSNumOut(), 3UL);
+        EXPECT_EQ(DT->getNode(BB4)->getDFSNumIn(), 5UL);
+        EXPECT_EQ(DT->getNode(BB4)->getDFSNumOut(), 6UL);
+
         return false;
       }
       void getAnalysisUsage(AnalysisUsage &AU) const override {
@@ -189,7 +217,7 @@ namespace llvm {
     std::unique_ptr<Module> makeLLVMModule(DPass *P) {
       const char *ModuleStrig =
         "declare i32 @g()\n" \
-        "define void @f(i32 %x) {\n" \
+        "define void @f(i32 %x) personality i32 ()* @g {\n" \
         "bb0:\n" \
         "  %y1 = add i32 %x, 1\n" \
         "  %y2 = add i32 %x, 1\n" \
@@ -198,7 +226,7 @@ namespace llvm {
         "  %y4 = add i32 %x, 1\n" \
         "  br label %bb4\n" \
         "bb2:\n" \
-        "  %y5 = landingpad i32 personality i32 ()* @g\n" \
+        "  %y5 = landingpad i32\n" \
         "          cleanup\n" \
         "  br label %bb4\n" \
         "bb3:\n" \