Author: vedantk
Date: Fri Oct 14 18:38:16 2016
New Revision: 284293

URL: http://llvm.org/viewvc/llvm-project?rev=284293&view=rev
Log:
[Coverage] Support for C++17 if initializers

Differential Revision: https://reviews.llvm.org/D25572

Added:
    cfe/trunk/test/CoverageMapping/if.cpp
      - copied, changed from r284292, cfe/trunk/test/CoverageMapping/if.c
Removed:
    cfe/trunk/test/CoverageMapping/if.c
Modified:
    cfe/trunk/lib/CodeGen/CodeGenPGO.cpp
    cfe/trunk/lib/CodeGen/CoverageMappingGen.cpp
    cfe/trunk/test/Profile/cxx-stmt-initializers.cpp

Modified: cfe/trunk/lib/CodeGen/CodeGenPGO.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenPGO.cpp?rev=284293&r1=284292&r2=284293&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenPGO.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenPGO.cpp Fri Oct 14 18:38:16 2016
@@ -490,6 +490,8 @@ struct ComputeRegionCounts : public Cons
   void VisitIfStmt(const IfStmt *S) {
     RecordStmtCount(S);
     uint64_t ParentCount = CurrentCount;
+    if (S->getInit())
+      Visit(S->getInit());
     Visit(S->getCond());
 
     // Counter tracks the "then" part of an if statement. The count for

Modified: cfe/trunk/lib/CodeGen/CoverageMappingGen.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CoverageMappingGen.cpp?rev=284293&r1=284292&r2=284293&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CoverageMappingGen.cpp (original)
+++ cfe/trunk/lib/CodeGen/CoverageMappingGen.cpp Fri Oct 14 18:38:16 2016
@@ -875,6 +875,9 @@ struct CounterCoverageMappingBuilder
 
   void VisitIfStmt(const IfStmt *S) {
     extendRegion(S);
+    if (S->getInit())
+      Visit(S->getInit());
+
     // Extend into the condition before we propagate through it below - this is
     // needed to handle macros that generate the "if" but not the condition.
     extendRegion(S->getCond());

Removed: cfe/trunk/test/CoverageMapping/if.c
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CoverageMapping/if.c?rev=284292&view=auto
==============================================================================
--- cfe/trunk/test/CoverageMapping/if.c (original)
+++ cfe/trunk/test/CoverageMapping/if.c (removed)
@@ -1,28 +0,0 @@
-// RUN: %clang_cc1 -fprofile-instrument=clang -fcoverage-mapping 
-dump-coverage-mapping -emit-llvm-only -main-file-name if.c %s | FileCheck %s
-
-int main() {                    // CHECK: File 0, [[@LINE]]:12 -> {{[0-9]+}}:2 
= #0
-  int i = 0;
-                                // CHECK-NEXT: File 0, [[@LINE+1]]:6 -> 
[[@LINE+1]]:12 = #0
-  if(i == 0) i = 1;             // CHECK-NEXT: File 0, [[@LINE]]:14 -> 
[[@LINE]]:19 = #1
-                                // CHECK-NEXT: File 0, [[@LINE+1]]:6 -> 
[[@LINE+1]]:12 = #0
-  if(i == 1)
-    i = 2;                      // CHECK-NEXT: File 0, [[@LINE]]:5 -> 
[[@LINE]]:10 = #2
-                                // CHECK-NEXT: File 0, [[@LINE+1]]:6 -> 
[[@LINE+1]]:12 = #0
-  if(i == 0) { i = 1;           // CHECK-NEXT: File 0, [[@LINE]]:14 -> 
[[@LINE+2]]:4 = #3
-    i = 2;
-  }
-                                // CHECK-NEXT: File 0, [[@LINE+1]]:6 -> 
[[@LINE+1]]:12 = #0
-  if(i != 0) {                  // CHECK-NEXT: File 0, [[@LINE]]:14 -> 
[[@LINE+2]]:4 = #4
-    i = 1;
-  } else {                      // CHECK-NEXT: File 0, [[@LINE]]:10 -> 
[[@LINE+2]]:4 = (#0 - #4)
-    i = 3;
-  }
-
-  i = i == 0?
-        i + 1 :                 // CHECK-NEXT: File 0, [[@LINE]]:9 -> 
[[@LINE]]:14 = #5
-        i + 2;                  // CHECK-NEXT: File 0, [[@LINE]]:9 -> 
[[@LINE]]:14 = (#0 - #5)
-                                // CHECK-NEXT: File 0, [[@LINE+1]]:14 -> 
[[@LINE+1]]:20 = #6
-  i = i == 0?i + 12:i + 10;     // CHECK-NEXT: File 0, [[@LINE]]:21 -> 
[[@LINE]]:27 = (#0 - #6)
-
-  return 0;
-}

Copied: cfe/trunk/test/CoverageMapping/if.cpp (from r284292, 
cfe/trunk/test/CoverageMapping/if.c)
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CoverageMapping/if.cpp?p2=cfe/trunk/test/CoverageMapping/if.cpp&p1=cfe/trunk/test/CoverageMapping/if.c&r1=284292&r2=284293&rev=284293&view=diff
==============================================================================
--- cfe/trunk/test/CoverageMapping/if.c (original)
+++ cfe/trunk/test/CoverageMapping/if.cpp Fri Oct 14 18:38:16 2016
@@ -1,5 +1,16 @@
-// RUN: %clang_cc1 -fprofile-instrument=clang -fcoverage-mapping 
-dump-coverage-mapping -emit-llvm-only -main-file-name if.c %s | FileCheck %s
+// RUN: %clang_cc1 -fprofile-instrument=clang -fcoverage-mapping 
-dump-coverage-mapping -emit-llvm-only -std=c++1z -triple %itanium_abi_triple 
-main-file-name if.cpp %s | FileCheck %s
 
+int nop() { return 0; }
+
+// CHECK-LABEL: _Z3foov:
+void foo() {                    // CHECK-NEXT: [[@LINE]]:12 -> [[@LINE+5]]:2 = 
#0
+  if (int j = true ? nop()      // CHECK-NEXT: [[@LINE]]:22 -> [[@LINE]]:27 = 
#2
+                   : nop();     // CHECK-NEXT: [[@LINE]]:22 -> [[@LINE]]:27 = 
(#0 - #2)
+      j)                        // CHECK-NEXT: [[@LINE]]:7 -> [[@LINE]]:8 = #0
+    ++j;                        // CHECK-NEXT: [[@LINE]]:5 -> [[@LINE]]:8 = #1
+}
+
+// CHECK-LABEL: main:
 int main() {                    // CHECK: File 0, [[@LINE]]:12 -> {{[0-9]+}}:2 
= #0
   int i = 0;
                                 // CHECK-NEXT: File 0, [[@LINE+1]]:6 -> 
[[@LINE+1]]:12 = #0

Modified: cfe/trunk/test/Profile/cxx-stmt-initializers.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Profile/cxx-stmt-initializers.cpp?rev=284293&r1=284292&r2=284293&view=diff
==============================================================================
--- cfe/trunk/test/Profile/cxx-stmt-initializers.cpp (original)
+++ cfe/trunk/test/Profile/cxx-stmt-initializers.cpp Fri Oct 14 18:38:16 2016
@@ -4,6 +4,7 @@
 // RUN: FileCheck --input-file=%tgen -check-prefix=CHECK -check-prefix=PGOGEN 
%s
 
 // PGOGEN: @[[SIC:__profc__Z11switch_initv]] = private global [3 x i64] 
zeroinitializer
+// PGOGEN: @[[IIC:__profc__Z7if_initv]] = private global [3 x i64] 
zeroinitializer
 
 // Note: We expect counters for the function entry block, the condition in the
 // switch initializer, and the switch successor block.
@@ -15,3 +16,14 @@ void switch_init() {
   // PGOGEN: store {{.*}} @[[SIC]], i64 0, i64 2
   // PGOGEN: store {{.*}} @[[SIC]], i64 0, i64 1
 }
+
+// Note: We expect counters for the function entry block, the condition in the
+// if initializer, and the if successor block.
+//
+// CHECK-LABEL: define {{.*}}void @_Z7if_initv()
+// PGOGEN: store {{.*}} @[[IIC]], i64 0, i64 0
+void if_init() {
+  if (int i = true ? 0 : 1; i) {}
+  // PGOGEN: store {{.*}} @[[IIC]], i64 0, i64 2
+  // PGOGEN: store {{.*}} @[[IIC]], i64 0, i64 1
+}


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