clang/test/CodeGen/math-libcalls-tbaa.c

   1 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
   2
   3 // RUN:  %clang_cc1 -triple=aarch64-unknown-linux-gnu -fmath-errno -O3 -emit-llvm -o - %s | FileCheck %s -check-prefixes=CHECK,NONEWSTRUCTPATHTBAA
   4 // RUN:  %clang_cc1 -triple=aarch64-unknown-linux-gnu -fmath-errno -O3 -new-struct-path-tbaa -emit-llvm -o - %s | FileCheck %s -check-prefixes=CHECK,NEWSTRUCTPATHTBAA
   5
   6 float expf(float);
   7 double remainder(double, double);
   8 double fabs(double);
   9 double frexp(double, int *exp);
  10 void sincos(float a, float *s, float *c);
  11 float _Complex cacoshf(float _Complex);
  12 float crealf(float _Complex);
  13
  14 // Emit int TBAA metadata on FP math libcalls, which is useful for alias analysis
  15
  16 // CHECK-LABEL: define dso_local float @test_expf(
  17 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
  18 // CHECK-NEXT:  [[ENTRY:.*:]]
  19 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 40
  20 // CHECK-NEXT:    [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2:![0-9]+]]
  21 // CHECK-NEXT:    [[CALL:%.*]] = tail call float @expf(float noundef [[TMP0]]) #[[ATTR9:[0-9]+]], !tbaa [[TBAA6:![0-9]+]]
  22 // CHECK-NEXT:    [[MUL:%.*]] = fmul float [[TMP0]], [[CALL]]
  23 // CHECK-NEXT:    ret float [[MUL]]
  24 //
  25 float test_expf (float num[]) {
  26    const float expm2 = expf(num[10]);  // Emit TBAA metadata on @expf
  27    float tmp = expm2 * num[10];
  28    return tmp;
  29 }
  30
  31 // CHECK-LABEL: define dso_local float @test_builtin_expf(
  32 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR0]] {
  33 // CHECK-NEXT:  [[ENTRY:.*:]]
  34 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 40
  35 // CHECK-NEXT:    [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
  36 // CHECK-NEXT:    [[CALL:%.*]] = tail call float @expf(float noundef [[TMP0]]) #[[ATTR9]], !tbaa [[TBAA6]]
  37 // CHECK-NEXT:    [[MUL:%.*]] = fmul float [[TMP0]], [[CALL]]
  38 // CHECK-NEXT:    ret float [[MUL]]
  39 //
  40 float test_builtin_expf (float num[]) {
  41    const float expm2 = __builtin_expf(num[10]);  // Emit TBAA metadata on @expf
  42    float tmp = expm2 * num[10];
  43    return tmp;
  44 }
  45
  46 //
  47 // Negative test: fabs cannot set errno
  48 // CHECK-LABEL: define dso_local double @test_fabs(
  49 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR3:[0-9]+]] {
  50 // CHECK-NEXT:  [[ENTRY:.*:]]
  51 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 80
  52 // CHECK-NEXT:    [[TMP0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA8:![0-9]+]]
  53 // CHECK-NEXT:    [[TMP1:%.*]] = tail call double @llvm.fabs.f64(double [[TMP0]])
  54 // CHECK-NEXT:    [[MUL:%.*]] = fmul double [[TMP0]], [[TMP1]]
  55 // CHECK-NEXT:    ret double [[MUL]]
  56 //
  57 double test_fabs (double num[]) {
  58    const double expm2 = fabs(num[10]);          // Don't emit TBAA metadata
  59    double tmp = expm2 * num[10];
  60    return tmp;
  61 }
  62
  63 // CHECK-LABEL: define dso_local double @test_remainder(
  64 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]], double noundef [[A:%.*]]) local_unnamed_addr #[[ATTR0]] {
  65 // CHECK-NEXT:  [[ENTRY:.*:]]
  66 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 80
  67 // CHECK-NEXT:    [[TMP0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA8]]
  68 // CHECK-NEXT:    [[CALL:%.*]] = tail call double @remainder(double noundef [[TMP0]], double noundef [[A]]) #[[ATTR9]], !tbaa [[TBAA6]]
  69 // CHECK-NEXT:    [[MUL:%.*]] = fmul double [[TMP0]], [[CALL]]
  70 // CHECK-NEXT:    ret double [[MUL]]
  71 //
  72 double test_remainder (double num[], double a) {
  73    const double expm2 = remainder(num[10], a);  // Emit TBAA metadata
  74    double tmp = expm2 * num[10];
  75    return tmp;
  76 }
  77
  78 //
  79 // TODO: frexp is not subject to any errors, but also writes to
  80 // its int pointer out argument, so it could emit int TBAA metadata.
  81 // CHECK-LABEL: define dso_local double @test_frexp(
  82 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR5:[0-9]+]] {
  83 // CHECK-NEXT:  [[ENTRY:.*:]]
  84 // CHECK-NEXT:    [[E:%.*]] = alloca i32, align 4
  85 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[E]]) #[[ATTR9]]
  86 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 16
  87 // CHECK-NEXT:    [[TMP0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA8]]
  88 // CHECK-NEXT:    [[CALL:%.*]] = call double @frexp(double noundef [[TMP0]], ptr noundef nonnull [[E]]) #[[ATTR9]]
  89 // CHECK-NEXT:    [[MUL:%.*]] = fmul double [[TMP0]], [[CALL]]
  90 // CHECK-NEXT:    call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[E]]) #[[ATTR9]]
  91 // CHECK-NEXT:    ret double [[MUL]]
  92 //
  93 double test_frexp (double num[]) {
  94    int e;
  95    double expm2 = frexp(num[2], &e);  // Don't emit TBAA metadata
  96    double tmp = expm2 * num[2];
  97    return tmp;
  98 }
  99
 100 //
 101 // Negative test: sincos is a library function, but is not a builtin function
 102 // checked in CodeGenFunction::EmitCallExpr.
 103 // CHECK-LABEL: define dso_local float @test_sincos(
 104 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR7:[0-9]+]] {
 105 // CHECK-NEXT:  [[ENTRY:.*:]]
 106 // CHECK-NEXT:    [[SIN:%.*]] = alloca float, align 4
 107 // CHECK-NEXT:    [[COS:%.*]] = alloca float, align 4
 108 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[SIN]]) #[[ATTR9]]
 109 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[COS]]) #[[ATTR9]]
 110 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 8
 111 // CHECK-NEXT:    [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
 112 // CHECK-NEXT:    call void @sincos(float noundef [[TMP0]], ptr noundef nonnull [[SIN]], ptr noundef nonnull [[COS]]) #[[ATTR9]]
 113 // CHECK-NEXT:    [[TMP1:%.*]] = load float, ptr [[SIN]], align 4, !tbaa [[TBAA2]]
 114 // CHECK-NEXT:    [[TMP2:%.*]] = load float, ptr [[COS]], align 4, !tbaa [[TBAA2]]
 115 // CHECK-NEXT:    [[MUL:%.*]] = fmul float [[TMP1]], [[TMP2]]
 116 // CHECK-NEXT:    [[TMP3:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
 117 // CHECK-NEXT:    [[ADD:%.*]] = fadd float [[MUL]], [[TMP3]]
 118 // CHECK-NEXT:    call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[COS]]) #[[ATTR9]]
 119 // CHECK-NEXT:    call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[SIN]]) #[[ATTR9]]
 120 // CHECK-NEXT:    ret float [[ADD]]
 121 //
 122 float test_sincos (float num[]) {
 123    float sin, cos;
 124    sincos(num[2], &sin, &cos);  // Don't emit TBAA metadata
 125    float tmp = sin * cos + num[2];
 126    return tmp;
 127 }
 128
 129 // TODO: The builtin return a complex type
 130 // CHECK-LABEL: define dso_local float @test_cacoshf(
 131 // CHECK-SAME: ptr nocapture noundef readonly [[NUM:%.*]]) local_unnamed_addr #[[ATTR7]] {
 132 // CHECK-NEXT:  [[ENTRY:.*:]]
 133 // CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i8, ptr [[NUM]], i64 8
 134 // CHECK-NEXT:    [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
 135 // CHECK-NEXT:    [[DOTFCA_0_INSERT:%.*]] = insertvalue [2 x float] poison, float [[TMP0]], 0
 136 // CHECK-NEXT:    [[DOTFCA_1_INSERT:%.*]] = insertvalue [2 x float] [[DOTFCA_0_INSERT]], float 0.000000e+00, 1
 137 // CHECK-NEXT:    [[CALL:%.*]] = tail call { float, float } @cacoshf([2 x float] noundef alignstack(8) [[DOTFCA_1_INSERT]]) #[[ATTR9]]
 138 // CHECK-NEXT:    [[TMP1:%.*]] = extractvalue { float, float } [[CALL]], 0
 139 // CHECK-NEXT:    [[TMP2:%.*]] = load float, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA2]]
 140 // CHECK-NEXT:    [[ADD:%.*]] = fadd float [[TMP1]], [[TMP2]]
 141 // CHECK-NEXT:    ret float [[ADD]]
 142 //
 143 float test_cacoshf (float num[]) {
 144    float _Complex z = cacoshf(num[2]);  // Don't emit TBAA metadata
 145    float tmp = crealf(z) + num[2];
 146    return tmp;
 147 }
 148
 149 //.
 150 // NONEWSTRUCTPATHTBAA: [[TBAA2]] = !{[[META3:![0-9]+]], [[META3]], i64 0}
 151 // NONEWSTRUCTPATHTBAA: [[META3]] = !{!"float", [[META4:![0-9]+]], i64 0}
 152 // NONEWSTRUCTPATHTBAA: [[META4]] = !{!"omnipotent char", [[META5:![0-9]+]], i64 0}
 153 // NONEWSTRUCTPATHTBAA: [[META5]] = !{!"Simple C/C++ TBAA"}
 154 // NONEWSTRUCTPATHTBAA: [[TBAA6]] = !{[[META7:![0-9]+]], [[META7]], i64 0}
 155 // NONEWSTRUCTPATHTBAA: [[META7]] = !{!"int", [[META4]], i64 0}
 156 // NONEWSTRUCTPATHTBAA: [[TBAA8]] = !{[[META9:![0-9]+]], [[META9]], i64 0}
 157 // NONEWSTRUCTPATHTBAA: [[META9]] = !{!"double", [[META4]], i64 0}
 158 //.
 159 // NEWSTRUCTPATHTBAA: [[TBAA2]] = !{[[META3:![0-9]+]], [[META3]], i64 0, i64 4}
 160 // NEWSTRUCTPATHTBAA: [[META3]] = !{[[META4:![0-9]+]], i64 4, !"float"}
 161 // NEWSTRUCTPATHTBAA: [[META4]] = !{[[META5:![0-9]+]], i64 1, !"omnipotent char"}
 162 // NEWSTRUCTPATHTBAA: [[META5]] = !{!"Simple C/C++ TBAA"}
 163 // NEWSTRUCTPATHTBAA: [[TBAA6]] = !{[[META7:![0-9]+]], [[META7]], i64 0, i64 4}
 164 // NEWSTRUCTPATHTBAA: [[META7]] = !{[[META4]], i64 4, !"int"}
 165 // NEWSTRUCTPATHTBAA: [[TBAA8]] = !{[[META9:![0-9]+]], [[META9]], i64 0, i64 8}
 166 // NEWSTRUCTPATHTBAA: [[META9]] = !{[[META4]], i64 8, !"double"}
 167 //.
 168 //// NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
 169 // NEWSTRUCTPATHTBAA: {{.*}}
 170 // NONEWSTRUCTPATHTBAA: {{.*}}