clang/test/CodeGen/ms-intrinsics-cpuid.c

   1 // RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
   2 // RUN:         -Werror -triple i686-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=X86
   3 // RUN: %clang_cc1 -ffreestanding -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
   4 // RUN:         -Werror -triple x86_64-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=X64
   5
   6 // intrin.h needs size_t, but -ffreestanding prevents us from getting it from
   7 // stddef.h.  Work around it with this typedef.
   8 typedef __SIZE_TYPE__ size_t;
   9
  10 #include <intrin.h>
  11
  12 #pragma intrinsic(__cpuid)
  13
  14 void test__cpuid(int cpuInfo[4], int function_id) {
  15   __cpuid(cpuInfo, function_id);
  16 }
  17 // X86-LABEL: define {{.*}} @test__cpuid(ptr noundef %{{.*}}, i32 noundef %{{.*}})
  18 // X86-DAG: [[ASMRESULTS:%[0-9]+]] = call { i32, i32, i32, i32 } asm "cpuid", "={ax},={bx},={cx},={dx},{ax},{cx}"
  19 // X86-DAG: [[ADDRPTR0:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 0
  20 // X86-DAG: [[ADDRPTR1:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 1
  21 // X86-DAG: [[ADDRPTR2:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 2
  22 // X86-DAG: [[ADDRPTR3:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 3
  23 // X86-DAG: [[RESULT0:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 0
  24 // X86-DAG: [[RESULT1:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 1
  25 // X86-DAG: [[RESULT2:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 2
  26 // X86-DAG: [[RESULT3:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 3
  27 // X86-DAG: store i32 [[RESULT0]], ptr [[ADDRPTR0]], align 4
  28 // X86-DAG: store i32 [[RESULT1]], ptr [[ADDRPTR1]], align 4
  29 // X86-DAG: store i32 [[RESULT2]], ptr [[ADDRPTR2]], align 4
  30 // X86-DAG: store i32 [[RESULT3]], ptr [[ADDRPTR3]], align 4
  31
  32 // X64-LABEL: define {{.*}} @test__cpuid(ptr noundef %{{.*}}, i32 noundef %{{.*}})
  33 // X64-DAG: [[ASMRESULTS:%[0-9]+]] = call { i32, i32, i32, i32 } asm "xchgq %rbx, ${1:q}\0Acpuid\0Axchgq %rbx, ${1:q}", "={ax},=r,={cx},={dx},0,2"
  34 // X64-DAG: [[ADDRPTR0:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 0
  35 // X64-DAG: [[ADDRPTR1:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 1
  36 // X64-DAG: [[ADDRPTR2:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 2
  37 // X64-DAG: [[ADDRPTR3:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 3
  38 // X64-DAG: [[RESULT0:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 0
  39 // X64-DAG: [[RESULT1:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 1
  40 // X64-DAG: [[RESULT2:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 2
  41 // X64-DAG: [[RESULT3:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 3
  42 // X64-DAG: store i32 [[RESULT0]], ptr [[ADDRPTR0]], align 4
  43 // X64-DAG: store i32 [[RESULT1]], ptr [[ADDRPTR1]], align 4
  44 // X64-DAG: store i32 [[RESULT2]], ptr [[ADDRPTR2]], align 4
  45 // X64-DAG: store i32 [[RESULT3]], ptr [[ADDRPTR3]], align 4
  46
  47 #pragma intrinsic(__cpuidex)
  48
  49 void test__cpuidex(int cpuInfo[4], int function_id, int subfunction_id) {
  50   __cpuidex(cpuInfo, function_id, subfunction_id);
  51 }
  52 // X86-LABEL: define {{.*}} @test__cpuidex(ptr noundef %{{.*}}, i32 noundef %{{.*}}, i32 noundef %{{.*}})
  53 // X86-DAG: [[ASMRESULTS:%[0-9]+]] = call { i32, i32, i32, i32 } asm "cpuid", "={ax},={bx},={cx},={dx},{ax},{cx}"
  54 // X86-DAG: [[ADDRPTR0:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 0
  55 // X86-DAG: [[ADDRPTR1:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 1
  56 // X86-DAG: [[ADDRPTR2:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 2
  57 // X86-DAG: [[ADDRPTR3:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 3
  58 // X86-DAG: [[RESULT0:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 0
  59 // X86-DAG: [[RESULT1:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 1
  60 // X86-DAG: [[RESULT2:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 2
  61 // X86-DAG: [[RESULT3:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 3
  62 // X86-DAG: store i32 [[RESULT0]], ptr [[ADDRPTR0]], align 4
  63 // X86-DAG: store i32 [[RESULT1]], ptr [[ADDRPTR1]], align 4
  64 // X86-DAG: store i32 [[RESULT2]], ptr [[ADDRPTR2]], align 4
  65 // X86-DAG: store i32 [[RESULT3]], ptr [[ADDRPTR3]], align 4
  66
  67 // X64-LABEL: define {{.*}} @test__cpuidex(ptr noundef %{{.*}}, i32 noundef %{{.*}}, i32 noundef %{{.*}})
  68 // X64-DAG: [[ASMRESULTS:%[0-9]+]] = call { i32, i32, i32, i32 } asm "xchgq %rbx, ${1:q}\0Acpuid\0Axchgq %rbx, ${1:q}", "={ax},=r,={cx},={dx},0,2"
  69 // X64-DAG: [[ADDRPTR0:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 0
  70 // X64-DAG: [[ADDRPTR1:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 1
  71 // X64-DAG: [[ADDRPTR2:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 2
  72 // X64-DAG: [[ADDRPTR3:%[0-9]+]] = getelementptr inbounds i32, ptr %{{.*}}, i32 3
  73 // X64-DAG: [[RESULT0:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 0
  74 // X64-DAG: [[RESULT1:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 1
  75 // X64-DAG: [[RESULT2:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 2
  76 // X64-DAG: [[RESULT3:%[0-9]+]] = extractvalue { i32, i32, i32, i32 } [[ASMRESULTS]], 3
  77 // X64-DAG: store i32 [[RESULT0]], ptr [[ADDRPTR0]], align 4
  78 // X64-DAG: store i32 [[RESULT1]], ptr [[ADDRPTR1]], align 4
  79 // X64-DAG: store i32 [[RESULT2]], ptr [[ADDRPTR2]], align 4
  80 // X64-DAG: store i32 [[RESULT3]], ptr [[ADDRPTR3]], align 4