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Diffstat (limited to 'test/CodeGenCXX/poly-unsigned.cpp')
| -rw-r--r-- | test/CodeGenCXX/poly-unsigned.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGenCXX/poly-unsigned.cpp b/test/CodeGenCXX/poly-unsigned.cpp new file mode 100644 index 000000000000..e2ab430a969e --- /dev/null +++ b/test/CodeGenCXX/poly-unsigned.cpp @@ -0,0 +1,20 @@ +// RUN: %clang_cc1 -triple arm64-apple-ios -target-feature +neon -ffreestanding -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-UNSIGNED-POLY %s +// RUN: %clang_cc1 -triple arm64-linux-gnu -target-feature +neon -ffreestanding -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-UNSIGNED-POLY %s +// RUN: %clang_cc1 -triple armv7-apple-ios -ffreestanding -target-cpu cortex-a8 -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-SIGNED-POLY %s + +#include <arm_neon.h> + +// Polynomial types really should be universally unsigned, otherwise casting +// (say) poly8_t "x^7" to poly16_t would change it to "x^15 + x^14 + ... + +// x^7". Unfortunately 32-bit ARM ended up in a slightly delicate ABI situation +// so for now it got that wrong. + +poly16_t test_poly8(poly8_t pIn) { +// CHECK-UNSIGNED-POLY: @_Z10test_poly8h +// CHECK-UNSIGNED-POLY: zext i8 {{.*}} to i16 + +// CHECK-SIGNED-POLY: @_Z10test_poly8a +// CHECK-SIGNED-POLY: sext i8 {{.*}} to i16 + + return pIn; +} |