clang/test/CodeGen/arm64-crc32.c

   1 // REQUIRES: aarch64-registered-target
   2 // RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +crc \
   3 // RUN:  -disable-O0-optnone -emit-llvm -o - %s | opt -S -passes=mem2reg | FileCheck %s
   4 // RUN: %clang_cc1 -triple aarch64-windows -target-feature +crc \
   5 // RUN:  -disable-O0-optnone -emit-llvm -o - %s | opt -S -passes=mem2reg | FileCheck %s
   6 // RUN: %clang_cc1 -verify -emit-llvm-only -triple aarch64 -target-feature -crc %s
   7
   8 #include <stdint.h>
   9
  10 uint32_t crc32b(uint32_t a, uint8_t b)
  11 {
  12 // expected-error@+1 {{'__builtin_arm_crc32b' needs target feature crc}}
  13         return __builtin_arm_crc32b(a,b);
  14 // CHECK: [[T0:%[0-9]+]] = zext i8 %b to i32
  15 // CHECK: call i32 @llvm.aarch64.crc32b(i32 %a, i32 [[T0]])
  16 }
  17
  18 uint32_t crc32cb(uint32_t a, uint8_t b)
  19 {
  20         return __builtin_arm_crc32cb(a,b);
  21 // CHECK: [[T0:%[0-9]+]] = zext i8 %b to i32
  22 // CHECK: call i32 @llvm.aarch64.crc32cb(i32 %a, i32 [[T0]])
  23 }
  24
  25 uint32_t crc32h(uint32_t a, uint16_t b)
  26 {
  27         return __builtin_arm_crc32h(a,b);
  28 // CHECK: [[T0:%[0-9]+]] = zext i16 %b to i32
  29 // CHECK: call i32 @llvm.aarch64.crc32h(i32 %a, i32 [[T0]])
  30 }
  31
  32 uint32_t crc32ch(uint32_t a, uint16_t b)
  33 {
  34         return __builtin_arm_crc32ch(a,b);
  35 // CHECK: [[T0:%[0-9]+]] = zext i16 %b to i32
  36 // CHECK: call i32 @llvm.aarch64.crc32ch(i32 %a, i32 [[T0]])
  37 }
  38
  39 uint32_t crc32w(uint32_t a, uint32_t b)
  40 {
  41         return __builtin_arm_crc32w(a,b);
  42 // CHECK: call i32 @llvm.aarch64.crc32w(i32 %a, i32 %b)
  43 }
  44
  45 uint32_t crc32cw(uint32_t a, uint32_t b)
  46 {
  47         return __builtin_arm_crc32cw(a,b);
  48 // CHECK: call i32 @llvm.aarch64.crc32cw(i32 %a, i32 %b)
  49 }
  50
  51 uint32_t crc32d(uint32_t a, uint64_t b)
  52 {
  53         return __builtin_arm_crc32d(a,b);
  54 // CHECK: call i32 @llvm.aarch64.crc32x(i32 %a, i64 %b)
  55 }
  56
  57 uint32_t crc32cd(uint32_t a, uint64_t b)
  58 {
  59         return __builtin_arm_crc32cd(a,b);
  60 // CHECK: call i32 @llvm.aarch64.crc32cx(i32 %a, i64 %b)
  61 }