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llvm-project/clang/test/Driver/x86-mcrc32.c

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[X86] Add CRC32 feature. d8faf03807ac implemented general-regs-only for X86 by disabling all features with vector instructions. But the CRC32 instruction in SSE4.2 ISA, which uses only GPRs, also becomes unavailable. This patch adds a CRC32 feature for this instruction and allows it to be used with general-regs-only. Reviewed By: pengfei Differential Revision: https://reviews.llvm.org/D105462
2021-09-06 13:55:17 +08:00
// Test interaction between -mcrc32 and other SIMD ISA options on x86
// RUN: %clang -target i386-unknown-linux-gnu -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target i386-unknown-linux-gnu -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target i386-unknown-linux-gnu -msse4.2 -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -msse4.2 -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target i386-unknown-linux-gnu -mcrc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -mcrc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: not %clang -target i386-unknown-linux-gnu -mno-crc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target x86_64-unknown-linux-gnu -mno-crc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target i386-unknown-linux-gnu -msse4.2 -mno-crc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target x86_64-unknown-linux-gnu -msse4.2 -mno-crc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target i386-unknown-linux-gnu -mcrc32 -mno-crc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target x86_64-unknown-linux-gnu -mcrc32 -mno-crc32 -msse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target i386-unknown-linux-gnu -mcrc32 -msse4.2 -mno-crc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: not %clang -target x86_64-unknown-linux-gnu -mcrc32 -msse4.2 -mno-crc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=ERROR %s
// RUN: %clang -target i386-unknown-linux-gnu -mcrc32 -mno-sse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -mcrc32 -mno-sse4.2 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target i386-unknown-linux-gnu -mno-sse4.2 -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
// RUN: %clang -target x86_64-unknown-linux-gnu -mno-sse4.2 -mcrc32 -S -emit-llvm %s -o - 2>&1 | FileCheck --check-prefix=IR-CRC32 %s
unsigned int test__crc32b(unsigned int CRC, unsigned char V) {
// CHECK-LABEL: test__crc32b
// CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
return __builtin_ia32_crc32qi(CRC, V);
}
// ERROR: error: '__builtin_ia32_crc32qi' needs target feature crc32
// IR-CRC32: attributes {{.*}} = { {{.*}} "target-features"="{{.*}}+crc32{{.*}}"