1 // RUN: %clang -target mipsel-unknown-linux -mnan=2008 -march=mips2 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NANLEGACY %s 2 // RUN: FileCheck -check-prefix=CHECK-MIPS2 %s < %t 3 // 4 // RUN: %clang -target mips64el-unknown-linux -mnan=2008 -march=mips3 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NANLEGACY %s 5 // RUN: FileCheck -check-prefix=CHECK-MIPS3 %s < %t 6 // 7 // RUN: %clang -target mips64el-unknown-linux -mnan=2008 -march=mips4 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NANLEGACY %s 8 // RUN: FileCheck -check-prefix=CHECK-MIPS4 %s < %t 9 // 10 // RUN: %clang -target mipsel-unknown-linux -mnan=2008 -march=mips32 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NANLEGACY %s 11 // RUN: FileCheck -check-prefix=CHECK-MIPS32 %s < %t 12 // 13 // RUN: %clang -target mipsel-unknown-linux -mnan=2008 -march=mips32r2 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NAN2008 %s 14 // RUN: FileCheck -allow-empty -check-prefix=NO-WARNINGS %s < %t 15 // 16 // RUN: %clang -target mipsel-unknown-linux -mnan=2008 -march=mips32r3 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NAN2008 %s 17 // RUN: FileCheck -allow-empty -check-prefix=NO-WARNINGS %s < %t 18 // 19 // RUN: %clang -target mipsel-unknown-linux -mnan=legacy -march=mips32r6 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NAN2008 %s 20 // RUN: FileCheck -check-prefix=CHECK-MIPS32R6 %s < %t 21 // 22 // RUN: %clang -target mips64el-unknown-linux -mnan=2008 -march=mips64 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NANLEGACY %s 23 // RUN: FileCheck -check-prefix=CHECK-MIPS64 %s < %t 24 // 25 // RUN: %clang -target mips64el-unknown-linux -mnan=2008 -march=mips64r2 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NAN2008 %s 26 // RUN: FileCheck -allow-empty -check-prefix=NO-WARNINGS %s < %t 27 // 28 // RUN: %clang -target mips64el-unknown-linux -mnan=legacy -march=mips64r6 -emit-llvm -S %s -o - 2>%t | FileCheck -check-prefix=CHECK-NAN2008 %s 29 // RUN: FileCheck -check-prefix=CHECK-MIPS64R6 %s < %t 30 31 // NO-WARNINGS-NOT: warning: ignoring '-mnan=legacy' option 32 // NO-WARNINGS-NOT: warning: ignoring '-mnan=2008' option 33 34 // CHECK-MIPS2: warning: ignoring '-mnan=2008' option because the 'mips2' architecture does not support it 35 // CHECK-MIPS3: warning: ignoring '-mnan=2008' option because the 'mips3' architecture does not support it 36 // CHECK-MIPS4: warning: ignoring '-mnan=2008' option because the 'mips4' architecture does not support it 37 // CHECK-MIPS32: warning: ignoring '-mnan=2008' option because the 'mips32' architecture does not support it 38 // CHECK-MIPS32R6: warning: ignoring '-mnan=legacy' option because the 'mips32r6' architecture does not support it 39 // CHECK-MIPS64: warning: ignoring '-mnan=2008' option because the 'mips64' architecture does not support it 40 // CHECK-MIPS64R6: warning: ignoring '-mnan=legacy' option because the 'mips64r6' architecture does not support it 41 42 // This call creates a QNAN double with an empty payload. 43 // The quiet bit is inverted in legacy mode: it is clear to indicate QNAN, 44 // so the next highest bit is set to maintain NAN (not infinity). 45 // In regular (2008) mode, the quiet bit is set to indicate QNAN. 46 47 // CHECK-NANLEGACY: double 0x7FF4000000000000 48 // CHECK-NAN2008: double 0x7FF8000000000000 49 50 double d = __builtin_nan(""); 51 52 // This call creates a QNAN double with an empty payload and then truncates. 53 // llvm::APFloat does not know about the inverted quiet bit, so it sets the 54 // quiet bit on conversion independently of the setting in clang. 55 56 // CHECK-NANLEGACY: float 0x7FFC000000000000 57 // CHECK-NAN2008: float 0x7FF8000000000000 58 59 float f = __builtin_nan(""); 60