| 1 | // RUN: %clang_cc1 -triple arm64-apple-ios -target-feature +neon -ffreestanding -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-UNSIGNED-POLY %s |
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| 2 | // RUN: %clang_cc1 -triple arm64-linux-gnu -target-feature +neon -ffreestanding -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-UNSIGNED-POLY %s |
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| 3 | // RUN: %clang_cc1 -triple armv7-apple-ios -ffreestanding -target-cpu cortex-a8 -S -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-SIGNED-POLY %s |
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| 4 | |
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| 5 | #include <arm_neon.h> |
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| 6 | |
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| 7 | // Polynomial types really should be universally unsigned, otherwise casting |
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| 8 | // (say) poly8_t "x^7" to poly16_t would change it to "x^15 + x^14 + ... + |
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| 9 | // x^7". Unfortunately 32-bit ARM ended up in a slightly delicate ABI situation |
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| 10 | // so for now it got that wrong. |
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| 11 | |
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| 12 | poly16_t test_poly8(poly8_t pIn) { |
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| 13 | // CHECK-UNSIGNED-POLY: @_Z10test_poly8h |
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| 14 | // CHECK-UNSIGNED-POLY: zext i8 {{.*}} to i16 |
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| 15 | |
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| 16 | // CHECK-SIGNED-POLY: @_Z10test_poly8a |
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| 17 | // CHECK-SIGNED-POLY: sext i8 {{.*}} to i16 |
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| 18 | |
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| 19 | return pIn; |
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| 20 | } |
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| 21 | |
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