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[compiler-rt][ubsan] Refactor cast-overflow test #129460

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Merged
merged 1 commit into from
Mar 3, 2025
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[compiler-rt][ubsan] Refactor cast-overflow test #129460

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23 changes: 7 additions & 16 deletions compiler-rt/test/ubsan/TestCases/Float/cast-overflow.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7,9 +7,7 @@
// RUN: %run %t 4 2>&1 | FileCheck %s --check-prefix=CHECK-4
// RUN: %run %t 5 2>&1 | FileCheck %s --check-prefix=CHECK-5
// RUN: %run %t 6 2>&1 | FileCheck %s --check-prefix=CHECK-6
// FIXME: %run %t 7 2>&1 | FileCheck %s --check-prefix=CHECK-7
// FIXME: not %run %t 8 2>&1 | FileCheck %s --check-prefix=CHECK-8
// RUN: not %run %t 9 2>&1 | FileCheck %s --check-prefix=CHECK-9
// RUN: %run %t 7 2>&1 | FileCheck %s --check-prefix=CHECK-7

// Issue #41838
// XFAIL: sparc-target-arch && target={{.*solaris.*}}
Expand Down Expand Up @@ -151,20 +149,13 @@ int main(int argc, char **argv) {
return 0;
#endif
}
// FIXME: The backend cannot lower __fp16 operations on x86 yet.
//case '7':
// (__fp16)65504; // ok
// // CHECK-7: runtime error: 65505 is outside the range of representable values of type '__fp16'
// return (__fp16)65505;

// Floating point -> floating point overflow.
case '8':
// CHECK-8: {{.*}}cast-overflow.cpp:[[@LINE+1]]:19: runtime error: 1e+39 is outside the range of representable values of type 'float'
return (float)1e39;
case '9':
case '7': {
volatile long double ld = 300.0;
// CHECK-9: {{.*}}cast-overflow.cpp:[[@LINE+1]]:14: runtime error: 300 is outside the range of representable values of type 'char'
// CHECK-7: {{.*}}cast-overflow.cpp:[[@LINE+1]]:14: runtime error: 300 is outside the range of representable values of type 'char'
char c = ld;
return c;
// `c` is allowed to contain UNDEF, thus we should not use
// its value as an exit code.
return 0;
}
}
}
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