clang/test/Profile/c-mcdc-logicalop-ternary.c

   1 // RUN: %clang_cc1 -triple %itanium_abi_triple %s -o - -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -fcoverage-mcdc | FileCheck %s -check-prefix=MCDC
   2 // RUN: %clang_cc1 -triple %itanium_abi_triple %s -o - -emit-llvm -fprofile-instrument=clang -fcoverage-mapping | FileCheck %s -check-prefix=NOMCDC
   3
   4 int test(int a, int b, int c, int d, int e, int f) {
   5   return ((a || b) ? (c && d) : (e || f));
   6 }
   7
   8 // NOMCDC-NOT: %mcdc.addr
   9 // NOMCDC-NOT: __profbm_test
  10
  11 // MCDC BOOKKEEPING.
  12 // MCDC: @__profbm_test = private global [2 x i8] zeroinitializer
  13
  14 // ALLOCATE MCDC TEMP AND ZERO IT.
  15 // MCDC-LABEL: @test(
  16 // MCDC: %mcdc.addr = alloca i32, align 4
  17 // MCDC: store i32 0, ptr %mcdc.addr, align 4
  18
  19 // TERNARY TRUE SHOULD UPDATE THE BITMAP WITH RESULT AT ELEMENT 0.
  20 // MCDC-LABEL: cond.true:
  21 // MCDC-DAG:  %[[TEMP0:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
  22 // MCDC:  %[[TEMP:[0-9]+]] = add i32 %[[TEMP0]], 0
  23 // MCDC:  %[[LAB1:[0-9]+]] = lshr i32 %[[TEMP]], 3
  24 // MCDC:  %[[LAB4:[0-9]+]] = getelementptr inbounds i8, ptr @__profbm_test, i32 %[[LAB1]]
  25 // MCDC:  %[[LAB5:[0-9]+]] = and i32 %[[TEMP]], 7
  26 // MCDC:  %[[LAB6:[0-9]+]] = trunc i32 %[[LAB5]] to i8
  27 // MCDC:  %[[LAB7:[0-9]+]] = shl i8 1, %[[LAB6]]
  28 // MCDC:  %[[LAB8:.+]] = load i8, ptr %[[LAB4]], align 1
  29 // MCDC:  %[[LAB9:[0-9]+]] = or i8 %[[LAB8]], %[[LAB7]]
  30 // MCDC:  store i8 %[[LAB9]], ptr %[[LAB4]], align 1
  31
  32 // CHECK FOR ZERO OF MCDC TEMP
  33 // MCDC: store i32 0, ptr %mcdc.addr, align 4
  34
  35 // TERNARY TRUE YIELDS TERNARY LHS LOGICAL-AND.
  36 // TERNARY LHS LOGICAL-AND SHOULD UPDATE THE BITMAP WITH RESULT AT ELEMENT 1.
  37 // MCDC-LABEL: land.end:
  38 // MCDC-DAG:  %[[TEMP0:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
  39 // MCDC:  %[[TEMP:[0-9]+]] = add i32 %[[TEMP0]], 3
  40 // MCDC:  %[[LAB1:[0-9]+]] = lshr i32 %[[TEMP]], 3
  41 // MCDC:  %[[LAB4:[0-9]+]] = getelementptr inbounds i8, ptr @__profbm_test, i32 %[[LAB1]]
  42 // MCDC:  %[[LAB5:[0-9]+]] = and i32 %[[TEMP]], 7
  43 // MCDC:  %[[LAB6:[0-9]+]] = trunc i32 %[[LAB5]] to i8
  44 // MCDC:  %[[LAB7:[0-9]+]] = shl i8 1, %[[LAB6]]
  45 // MCDC:  %[[LAB8:.+]] = load i8, ptr %[[LAB4]], align 1
  46 // MCDC:  %[[LAB9:[0-9]+]] = or i8 %[[LAB8]], %[[LAB7]]
  47 // MCDC:  store i8 %[[LAB9]], ptr %[[LAB4]], align 1
  48
  49 // TERNARY FALSE SHOULD UPDATE THE BITMAP WITH RESULT AT ELEMENT 0.
  50 // MCDC-LABEL: cond.false:
  51 // MCDC-DAG:  %[[TEMP0:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
  52 // MCDC:  %[[TEMP:[0-9]+]] = add i32 %[[TEMP0]], 0
  53 // MCDC:  %[[LAB1:[0-9]+]] = lshr i32 %[[TEMP]], 3
  54 // MCDC:  %[[LAB4:[0-9]+]] = getelementptr inbounds i8, ptr @__profbm_test, i32 %[[LAB1]]
  55 // MCDC:  %[[LAB5:[0-9]+]] = and i32 %[[TEMP]], 7
  56 // MCDC:  %[[LAB6:[0-9]+]] = trunc i32 %[[LAB5]] to i8
  57 // MCDC:  %[[LAB7:[0-9]+]] = shl i8 1, %[[LAB6]]
  58 // MCDC:  %[[LAB8:.+]] = load i8, ptr %[[LAB4]], align 1
  59 // MCDC:  %[[LAB9:[0-9]+]] = or i8 %[[LAB8]], %[[LAB7]]
  60 // MCDC:  store i8 %[[LAB9]], ptr %[[LAB4]], align 1
  61
  62 // CHECK FOR ZERO OF MCDC TEMP
  63 // MCDC: store i32 0, ptr %mcdc.addr, align 4
  64
  65 // TERNARY FALSE YIELDS TERNARY RHS LOGICAL-OR.
  66 // TERNARY RHS LOGICAL-OR SHOULD UPDATE THE BITMAP WITH RESULT AT ELEMENT 2.
  67 // MCDC-LABEL: lor.end:
  68 // MCDC-DAG:  %[[TEMP0:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
  69 // MCDC:  %[[TEMP:[0-9]+]] = add i32 %[[TEMP0]], 6
  70 // MCDC:  %[[LAB1:[0-9]+]] = lshr i32 %[[TEMP]], 3
  71 // MCDC:  %[[LAB4:[0-9]+]] = getelementptr inbounds i8, ptr @__profbm_test, i32 %[[LAB1]]
  72 // MCDC:  %[[LAB5:[0-9]+]] = and i32 %[[TEMP]], 7
  73 // MCDC:  %[[LAB6:[0-9]+]] = trunc i32 %[[LAB5]] to i8
  74 // MCDC:  %[[LAB7:[0-9]+]] = shl i8 1, %[[LAB6]]
  75 // MCDC:  %[[LAB8:.+]] = load i8, ptr %[[LAB4]], align 1
  76 // MCDC:  %[[LAB9:[0-9]+]] = or i8 %[[LAB8]], %[[LAB7]]
  77 // MCDC:  store i8 %[[LAB9]], ptr %[[LAB4]], align 1