clang/test/CodeGen/attr-target-crc32-x86.c

   1 // Test crc32 target attribute on x86
   2
   3 // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s
   4 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s
   5
   6 // CHECK: define{{.*}} i32 @test1({{.*}}) [[TEST1_ATTRS:#[0-9]+]]
   7 // CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
   8
   9 #define __MM_MALLOC_H
  10
  11 #include <x86intrin.h>
  12
  13 unsigned int __attribute__((target("crc32"))) test1(unsigned int CRC, unsigned char V) {
  14   return __builtin_ia32_crc32qi(CRC, V);
  15 }
  16
  17 // CHECK: define{{.*}} i32 @test2({{.*}}) [[GPR_ONLY_ATTRS:#[0-9]+]]
  18 // CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
  19 unsigned int __attribute__((target("general-regs-only,crc32"))) test2(unsigned int CRC, unsigned char V) {
  20   return __builtin_ia32_crc32qi(CRC, V);
  21 }
  22
  23 // CHECK: define{{.*}} i32 @test3({{.*}}) [[GPR_ONLY_ATTRS:#[0-9]+]]
  24 // CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
  25 unsigned int __attribute__((target("crc32,general-regs-only"))) test3(unsigned int CRC, unsigned char V) {
  26   return __builtin_ia32_crc32qi(CRC, V);
  27 }
  28
  29 // CHECK: define{{.*}} i32 @test4({{.*}}) [[TEST4_ATTRS:#[0-9]+]]
  30 // CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
  31 unsigned int __attribute__((target("sse4.2"))) test4(unsigned int CRC, unsigned char V) {
  32   return __builtin_ia32_crc32qi(CRC, V);
  33 }
  34
  35 // CHECK: define{{.*}} i32 @test5({{.*}}) [[GPR_ONLY_ATTRS:#[0-9]+]]
  36 // CHECK: call i32 @llvm.x86.sse42.crc32.32.8(i32 %{{.*}}, i8 %{{.*}})
  37 unsigned int __attribute__((target("sse4.2,general-regs-only,crc32"))) test5(unsigned int CRC, unsigned char V) {
  38   return __builtin_ia32_crc32qi(CRC, V);
  39 }
  40
  41 // CHECK: define{{.*}} i32 @test6({{.*}}) [[TEST4_ATTRS:#[0-9]+]]
  42 // CHECK: call i32 @llvm.x86.sse42.pcmpestria128(<16 x i8> %{{.*}}, i32 %{{.*}}, <16 x i8> %{{.*}}, i32 %{{.*}}, i8 7)
  43 int __attribute__((target("sse4.2,no-crc32,crc32"))) test6(__m128i A, int LA, __m128i B, int LB) {
  44   return _mm_cmpestra(A, LA, B, LB, 7);
  45 }
  46
  47 // CHECK: define{{.*}} i32 @test7({{.*}}) [[TEST4_ATTRS:#[0-9]+]]
  48 // CHECK: call i32 @llvm.x86.sse42.pcmpestria128(<16 x i8> %{{.*}}, i32 %{{.*}}, <16 x i8> %{{.*}}, i32 %{{.*}}, i8 7)
  49 int __attribute__((target("no-crc32,crc32,sse4.2"))) test7(__m128i A, int LA, __m128i B, int LB) {
  50   return _mm_cmpestra(A, LA, B, LB, 7);
  51 }
  52
  53 // CHECK: attributes [[TEST1_ATTRS]] = { {{.*}} "target-features"="{{.*}}+crc32{{.*}}"
  54 // CHECK: attributes [[GPR_ONLY_ATTRS]] = { {{.*}} "target-features"="{{.*}}+crc32{{.*}}-avx{{.*}}-avx2{{.*}}-avx512f{{.*}}-sse{{.*}}-sse2{{.*}}-ssse3{{.*}}-x87{{.*}}"
  55 // CHECK: attributes [[TEST4_ATTRS]] = { {{.*}} "target-features"="{{.*}}+crc32{{.*}}+sse4.2{{.*}}"