clang/test/Driver/fp-model.c

   1 // Test that incompatible combinations of -ffp-model= options
   2 // and other floating point options get a warning diagnostic.
   3 //
   4
   5 // RUN: %clang -### -ffp-model=fast -ffp-contract=off -c %s 2>&1 \
   6 // RUN:   | FileCheck --check-prefix=WARN %s
   7 // WARN: warning: overriding '-ffp-model=fast' option with '-ffp-contract=off' [-Woverriding-t-option]
   8
   9 // RUN: %clang -### -ffp-model=fast -ffp-contract=on -c %s 2>&1 \
  10 // RUN:   | FileCheck --check-prefix=WARN1 %s
  11 // WARN1: warning: overriding '-ffp-model=fast' option with '-ffp-contract=on' [-Woverriding-t-option]
  12
  13 // RUN: %clang -### -ffp-model=strict -fassociative-math -c %s 2>&1 \
  14 // RUN:   | FileCheck --check-prefix=WARN2 %s
  15 // WARN2: warning: overriding '-ffp-model=strict' option with '-fassociative-math' [-Woverriding-t-option]
  16
  17 // RUN: %clang -### -ffp-model=strict -ffast-math -c %s 2>&1 \
  18 // RUN:   | FileCheck --check-prefix=WARN3 %s
  19 // WARN3: warning: overriding '-ffp-model=strict' option with '-ffast-math' [-Woverriding-t-option]
  20
  21 // RUN: %clang -### -ffp-model=strict -ffinite-math-only -c %s 2>&1 \
  22 // RUN:   | FileCheck --check-prefix=WARN4 %s
  23 // WARN4: warning: overriding '-ffp-model=strict' option with '-ffinite-math-only' [-Woverriding-t-option]
  24
  25 // RUN: %clang -### -ffp-model=strict -ffp-contract=fast -c %s 2>&1 \
  26 // RUN:   | FileCheck --check-prefix=WARN5 %s
  27 // WARN5: warning: overriding '-ffp-model=strict' option with '-ffp-contract=fast' [-Woverriding-t-option]
  28
  29 // RUN: %clang -### -ffp-model=strict -ffp-contract=on -c %s 2>&1 \
  30 // RUN:   | FileCheck --check-prefix=WARN7 %s
  31 // WARN7: warning: overriding '-ffp-model=strict' option with '-ffp-contract=on' [-Woverriding-t-option]
  32
  33 // RUN: %clang -### -ffp-model=strict -fno-honor-infinities -c %s 2>&1 \
  34 // RUN:   | FileCheck --check-prefix=WARN8 %s
  35 // WARN8: warning: overriding '-ffp-model=strict' option with '-fno-honor-infinities' [-Woverriding-t-option]
  36
  37 // RUN: %clang -### -ffp-model=strict -fno-honor-nans -c %s 2>&1 \
  38 // RUN:   | FileCheck --check-prefix=WARN9 %s
  39 // WARN9: warning: overriding '-ffp-model=strict' option with '-fno-honor-nans' [-Woverriding-t-option]
  40
  41 // RUN: %clang -### -ffp-model=strict -fno-rounding-math -c %s 2>&1 \
  42 // RUN:   | FileCheck --check-prefix=WARNa %s
  43 // WARNa: warning: overriding '-ffp-model=strict' option with '-fno-rounding-math' [-Woverriding-t-option]
  44
  45 // RUN: %clang -### -ffp-model=strict -fno-signed-zeros -c %s 2>&1 \
  46 // RUN:   | FileCheck --check-prefix=WARNb %s
  47 // WARNb: warning: overriding '-ffp-model=strict' option with '-fno-signed-zeros' [-Woverriding-t-option]
  48
  49 // RUN: %clang -### -ffp-model=strict -fno-trapping-math -c %s 2>&1 \
  50 // RUN:   | FileCheck --check-prefix=WARNc %s
  51 // WARNc: warning: overriding '-ffp-model=strict' option with '-fno-trapping-math' [-Woverriding-t-option]
  52
  53 // RUN: %clang -### -ffp-model=strict -freciprocal-math -c %s 2>&1 \
  54 // RUN:   | FileCheck --check-prefix=WARNd %s
  55 // WARNd: warning: overriding '-ffp-model=strict' option with '-freciprocal-math' [-Woverriding-t-option]
  56
  57 // RUN: %clang -### -ffp-model=strict -funsafe-math-optimizations -c %s 2>&1 \
  58 // RUN:   | FileCheck --check-prefix=WARNe %s
  59 // WARNe: warning: overriding '-ffp-model=strict' option with '-funsafe-math-optimizations' [-Woverriding-t-option]
  60
  61 // RUN: %clang -### -ffp-model=strict -Ofast -c %s 2>&1 \
  62 // RUN:   | FileCheck --check-prefix=WARNf %s
  63 // WARNf: warning: overriding '-ffp-model=strict' option with '-Ofast' [-Woverriding-t-option]
  64
  65 // RUN: %clang -### -ffp-model=strict -fdenormal-fp-math=preserve-sign,preserve-sign -c %s 2>&1 \
  66 // RUN:   | FileCheck --check-prefix=WARN10 %s
  67 // WARN10: warning: overriding '-ffp-model=strict' option with '-fdenormal-fp-math=preserve-sign,preserve-sign' [-Woverriding-t-option]
  68
  69 // RUN: %clang -### -ffp-model=fast -ffp-model=strict -c %s 2>&1 | FileCheck \
  70 // RUN:   --check-prefix=WARN11 %s
  71 // WARN11: warning: overriding '-ffp-model=fast' option with '-ffp-model=strict' [-Woverriding-t-option]
  72 // WARN11-NOT: warning: overriding '-ffp-model=strict' option with '-ffp-model=strict' [-Woverriding-t-option]
  73
  74 // RUN: %clang -### -Ofast -ffp-model=strict -c %s 2>&1 | FileCheck \
  75 // RUN:   --check-prefix=WARN12 %s
  76 // RUN: %clang -### -ffast-math -ffp-model=strict -c %s 2>&1 | FileCheck \
  77 // RUN:   --check-prefix=WARN12 %s
  78 // WARN12-NOT: warning: overriding '-ffp-model=strict' option with '-ffp-model=strict' [-Woverriding-t-option]
  79
  80 // RUN: %clang -### -ffp-model=strict -fapprox-func -c %s 2>&1 \
  81 // RUN:   | FileCheck --check-prefix=WARN13 %s
  82 // WARN13: warning: overriding '-ffp-model=strict' option with '-fapprox-func' [-Woverriding-t-option]
  83
  84 // RUN: %clang -### -c %s 2>&1 \
  85 // RUN:   | FileCheck --check-prefix=CHECK-NOROUND %s
  86 // CHECK-NOROUND: "-cc1"
  87 // CHECK-NOROUND: "-fno-rounding-math"
  88
  89 // RUN: %clang -### -frounding-math -c %s 2>&1 \
  90 // RUN:   | FileCheck --check-prefix=CHECK-ROUND --implicit-check-not ffp-exception-behavior=strict %s
  91 // CHECK-ROUND: "-cc1"
  92 // CHECK-ROUND: "-frounding-math"
  93
  94 // RUN: %clang -### -ftrapping-math -c %s 2>&1 \
  95 // RUN:   | FileCheck --check-prefix=CHECK-TRAP %s
  96 // CHECK-TRAP: "-cc1"
  97 // CHECK-TRAP: "-ffp-exception-behavior=strict"
  98
  99 // RUN: %clang -### -nostdinc -ffp-model=fast -c %s 2>&1 \
 100 // RUN:   | FileCheck --check-prefix=CHECK-FPM-FAST %s
 101 // CHECK-FPM-FAST: "-cc1"
 102 // CHECK-FPM-FAST: "-menable-no-infs"
 103 // CHECK-FPM-FAST: "-menable-no-nans"
 104 // CHECK-FPM-FAST: "-fapprox-func"
 105 // CHECK-FPM-FAST: "-funsafe-math-optimizations"
 106 // CHECK-FPM-FAST: "-fno-signed-zeros"
 107 // CHECK-FPM-FAST: "-mreassociate"
 108 // CHECK-FPM-FAST: "-freciprocal-math"
 109 // CHECK-FPM-FAST: "-ffp-contract=fast"
 110 // CHECK-FPM-FAST: "-fno-rounding-math"
 111 // CHECK-FPM-FAST: "-ffast-math"
 112 // CHECK-FPM-FAST: "-ffinite-math-only"
 113
 114 // RUN: %clang -### -nostdinc -ffp-model=precise -c %s 2>&1 \
 115 // RUN:   | FileCheck --check-prefix=CHECK-FPM-PRECISE %s
 116 // CHECK-FPM-PRECISE: "-cc1"
 117 // CHECK-FPM-PRECISE: "-ffp-contract=on"
 118 // CHECK-FPM-PRECISE: "-fno-rounding-math"
 119
 120 // RUN: %clang -### -nostdinc -ffp-model=strict -c %s 2>&1 \
 121 // RUN:   | FileCheck --check-prefix=CHECK-FPM-STRICT %s
 122 // CHECK-FPM-STRICT: "-cc1"
 123 // CHECK-FPM-STRICT: "-frounding-math"
 124 // CHECK-FPM-STRICT: "-ffp-exception-behavior=strict"
 125
 126 // RUN: %clang -### -nostdinc -ffp-model=strict -ffp-model=fast -c %s 2>&1 \
 127 // RUN:   | FileCheck --check-prefix=CHECK-NO-EXCEPT %s
 128 // RUN: %clang -### -nostdinc -ffp-model=strict -ffast-math -c %s 2>&1 \
 129 // RUN:   | FileCheck --check-prefix=CHECK-NO-EXCEPT %s
 130 // RUN: %clang -### -nostdinc -ffp-model=strict -Ofast -c %s 2>&1 \
 131 // RUN:   | FileCheck --check-prefix=CHECK-NO-EXCEPT %s
 132 // CHECK-NO-EXCEPT-NOT: "-ffp-exception-behavior=strict"
 133
 134 // RUN: %clang -### -nostdinc -ffp-exception-behavior=strict -c %s 2>&1 \
 135 // RUN:   | FileCheck --check-prefix=CHECK-FEB-STRICT %s
 136 // CHECK-FEB-STRICT: "-cc1"
 137 // CHECK-FEB-STRICT: "-fno-rounding-math"
 138 // CHECK-FEB-STRICT: "-ffp-exception-behavior=strict"
 139
 140 // RUN: %clang -### -nostdinc -ffp-exception-behavior=maytrap -c %s 2>&1 \
 141 // RUN:   | FileCheck --check-prefix=CHECK-FEB-MAYTRAP %s
 142 // CHECK-FEB-MAYTRAP: "-cc1"
 143 // CHECK-FEB-MAYTRAP: "-fno-rounding-math"
 144 // CHECK-FEB-MAYTRAP: "-ffp-exception-behavior=maytrap"
 145
 146 // RUN: %clang -### -nostdinc -ffp-exception-behavior=ignore -c %s 2>&1 \
 147 // RUN:   | FileCheck --check-prefix=CHECK-FEB-IGNORE %s
 148 // CHECK-FEB-IGNORE: "-cc1"
 149 // CHECK-FEB-IGNORE: "-fno-rounding-math"
 150 // CHECK-FEB-IGNORE: "-ffp-exception-behavior=ignore"
 151
 152 // RUN: %clang -### -nostdinc -ffast-math -ffp-model=fast -c %s 2>&1 \
 153 // RUN:   | FileCheck --check-prefix=CHECK-FASTMATH-FPM-FAST %s
 154 // CHECK-FASTMATH-FPM-FAST: "-cc1"
 155 // CHECK-FASTMATH-FPM-FAST: "-menable-no-infs"
 156 // CHECK-FASTMATH-FPM-FAST: "-menable-no-nans"
 157 // CHECK-FASTMATH-FPM-FAST: "-fapprox-func"
 158 // CHECK-FASTMATH-FPM-FAST: "-funsafe-math-optimizations"
 159 // CHECK-FASTMATH-FPM-FAST: "-fno-signed-zeros"
 160 // CHECK-FASTMATH-FPM-FAST: "-mreassociate"
 161 // CHECK-FASTMATH-FPM-FAST: "-freciprocal-math"
 162 // CHECK-FASTMATH-FPM-FAST: "-ffp-contract=fast"
 163 // CHECK-FASTMATH-FPM-FAST: "-fno-rounding-math"
 164 // CHECK-FASTMATH-FPM-FAST: "-ffast-math"
 165 // CHECK-FASTMATH-FPM-FAST: "-ffinite-math-only"
 166
 167 // RUN: %clang -### -nostdinc -ffast-math -ffp-model=precise -c %s 2>&1 \
 168 // RUN:   | FileCheck --check-prefix=CHECK-FASTMATH-FPM-PRECISE %s
 169 // CHECK-FASTMATH-FPM-PRECISE:     "-cc1"
 170 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-menable-no-infs"
 171 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-menable-no-nans"
 172 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-fapprox-func"
 173 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-funsafe-math-optimizations"
 174 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-fno-signed-zeros"
 175 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-mreassociate"
 176 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-freciprocal-math"
 177 // CHECK-FASTMATH-FPM-PRECISE:     "-ffp-contract=on"
 178 // CHECK-FASTMATH-FPM-PRECISE:     "-fno-rounding-math"
 179 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-ffast-math"
 180 // CHECK-FASTMATH-FPM-PRECISE-NOT: "-ffinite-math-only"
 181
 182 // RUN: %clang -### -nostdinc -ffast-math -ffp-model=strict -c %s 2>&1 \
 183 // RUN:   | FileCheck --check-prefix=CHECK-FASTMATH-FPM-STRICT %s
 184 // CHECK-FASTMATH-FPM-STRICT:     "-cc1"
 185 // CHECK-FASTMATH-FPM-STRICT-NOT: "-menable-no-infs"
 186 // CHECK-FASTMATH-FPM-STRICT-NOT: "-menable-no-nans"
 187 // CHECK-FASTMATH-FPM-STRICT-NOT: "-fapprox-func"
 188 // CHECK-FASTMATH-FPM-STRICT-NOT: "-funsafe-math-optimizations"
 189 // CHECK-FASTMATH-FPM-STRICT-NOT: "-fno-signed-zeros"
 190 // CHECK-FASTMATH-FPM-STRICT-NOT: "-mreassociate"
 191 // CHECK-FASTMATH-FPM-STRICT-NOT: "-freciprocal-math"
 192 // CHECK-FASTMATH-FPM-STRICT:     "-ffp-contract=off"
 193 // CHECK-FASTMATH-FPM-STRICT-NOT: "-fno-rounding-math"
 194 // CHECK-FASTMATH-FPM-STRICT-NOT: "-ffast-math"
 195 // CHECK-FASTMATH-FPM-STRICT-NOT: "-ffinite-math-only"