[esan|cfrag] Compute the struct field access difference ratio
Summary:
Computes the struct field access variation based on each field access
count.
Adds a flag to control the report thresholds.
Updates struct-simple.cpp with variance report output.
Reviewers: aizatsky
Subscribers: kubabrecka, zhaoqin, llvm-commits, eugenis, vitalybuka, kcc, bruening
Differential Revision: http://reviews.llvm.org/D20914
llvm-svn: 271734
diff --git a/compiler-rt/test/esan/TestCases/struct-simple.cpp b/compiler-rt/test/esan/TestCases/struct-simple.cpp
index 560f79c..0e6dbab 100644
--- a/compiler-rt/test/esan/TestCases/struct-simple.cpp
+++ b/compiler-rt/test/esan/TestCases/struct-simple.cpp
@@ -138,22 +138,52 @@
return 0;
// CHECK: in esan::finalizeLibrary
// CHECK-NEXT: in esan::finalizeCacheFrag
- // CHECK-NEXT: {{.*}}EfficiencySanitizer is not finished: nothing yet to report
// CHECK-NEXT: in esan::processCompilationUnitExit
// CHECK-NEXT: in esan::processCacheFragCompilationUnitExit: {{.*}}struct-simple.cpp with 5 class(es)/struct(s)
// CHECK-NEXT: Unregister class.C#3#14#13#13: 3 fields
+ // CHECK-NEXT: {{.*}} class C
+ // CHECK-NEXT: {{.*}} count = 5, ratio = 3
+ // CHECK-NEXT: {{.*}} # 0: count = 2, type = %struct.anon = type { i32, i32 }
+ // CHECK-NEXT: {{.*}} # 1: count = 2, type = %union.anon = type { double }
+ // CHECK-NEXT: {{.*}} # 2: count = 1, type = [10 x i8]
// CHECK-NEXT: Unregister struct.anon#2#11#11: 2 fields
+ // CHECK-NEXT: {{.*}} struct anon
+ // CHECK-NEXT: {{.*}} count = 2, ratio = 1
+ // CHECK-NEXT: {{.*}} # 0: count = 1, type = i32
+ // CHECK-NEXT: {{.*}} # 1: count = 1, type = i32
// CHECK-NEXT: Unregister union.anon#1#3: 1 fields
// CHECK-NEXT: Unregister struct.S#2#11#11: 2 fields
+ // CHECK-NEXT: {{.*}} struct S
+ // CHECK-NEXT: {{.*}} count = 2, ratio = 2
+ // CHECK-NEXT: {{.*}} # 0: count = 2, type = i32
+ // CHECK-NEXT: {{.*}} # 1: count = 0, type = i32
// CHECK-NEXT: Unregister struct.D#3#11#11#11: 3 fields
+ // CHECK-NEXT: {{.*}} struct D
+ // CHECK-NEXT: {{.*}} count = 2, ratio = 2
+ // CHECK-NEXT: {{.*}} # 0: count = 1, type = i32
+ // CHECK-NEXT: {{.*}} # 1: count = 1, type = i32
+ // CHECK-NEXT: {{.*}} # 2: count = 0, type = i32
// CHECK-NEXT: in esan::processCompilationUnitExit
// CHECK-NEXT: in esan::processCacheFragCompilationUnitExit: {{.*}}struct-simple.cpp with 0 class(es)/struct(s)
// CHECK-NEXT: in esan::processCompilationUnitExit
// CHECK-NEXT: in esan::processCacheFragCompilationUnitExit: {{.*}}struct-simple.cpp with 5 class(es)/struct(s)
// CHECK-NEXT: Unregister struct.A#2#11#11: 2 fields
+ // CHECK-NEXT: {{.*}} struct A
+ // CHECK-NEXT: {{.*}} count = 2049, ratio = 2048
+ // CHECK-NEXT: {{.*}} # 0: count = 2048, type = i32
+ // CHECK-NEXT: {{.*}} # 1: count = 1, type = i32
// CHECK-NEXT: Unregister struct.B#2#3#2: 2 fields
+ // CHECK-NEXT: {{.*}} struct B
+ // CHECK-NEXT: {{.*}} count = 2097153, ratio = 2097152
+ // CHECK-NEXT: {{.*}} # 0: count = 1, type = float
+ // CHECK-NEXT: {{.*}} # 1: count = 2097152, type = double
// CHECK-NEXT: Unregister union.U#1#3: 1 fields
// CHECK-NEXT: Duplicated struct.S#2#11#11: 2 fields
// CHECK-NEXT: Unregister struct.D#2#11#11: 2 fields
+ // CHECK-NEXT: {{.*}} struct D
+ // CHECK-NEXT: {{.*}} count = 1, ratio = 1
+ // CHECK-NEXT: {{.*}} # 0: count = 1, type = i32
+ // CHECK-NEXT: {{.*}} # 1: count = 0, type = i32
+ // CHECK-NEXT: {{.*}}EfficiencySanitizer: total struct field access count = 2099214
}
#endif // MAIN