clang/test/CodeGen/PowerPC/builtins-ppc-xlcompat-expect.c

   1 // REQUIRES: powerpc-registered-target
   2 // RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -O1 -disable-llvm-passes \
   3 // RUN:    -emit-llvm %s -o -  -target-cpu pwr7 | FileCheck %s --check-prefix=64BIT
   4 // RUN: %clang_cc1 -triple powerpc64le-unknown-linux-gnu -O1 -disable-llvm-passes \
   5 // RUN:   -emit-llvm %s -o -  -target-cpu pwr8 | FileCheck %s --check-prefix=64BIT
   6 // RUN: %clang_cc1 -triple powerpc64-unknown-aix -O1 -disable-llvm-passes \
   7 // RUN:    -emit-llvm %s -o -  -target-cpu pwr7 | FileCheck %s --check-prefix=64BIT
   8 // RUN: %clang_cc1 -triple powerpc-unknown-linux-gnu -O1 -disable-llvm-passes \
   9 // RUN:    -emit-llvm %s -o -  -target-cpu pwr7 | FileCheck %s --check-prefix=32BIT
  10 // RUN: %clang_cc1 -triple powerpcle-unknown-linux-gnu -O1 -disable-llvm-passes \
  11 // RUN:   -emit-llvm %s -o -  -target-cpu pwr8 | FileCheck %s --check-prefix=32BIT
  12 // RUN: %clang_cc1 -triple powerpc-unknown-aix -O1 -disable-llvm-passes \
  13 // RUN:    -emit-llvm %s -o -  -target-cpu pwr7 | FileCheck %s --check-prefix=32BIT
  14
  15 // 64BIT-LABEL: @testbuiltin_expect(
  16 // 64BIT:         [[EXPVAL:%.*]] = call i64 @llvm.expect.i64(i64 {{%.*}}, i64 23)
  17 // 64BIT-NEXT:    [[CMP:%.*]] = icmp eq i64 [[EXPVAL]], 23
  18 // 64BIT-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
  19 // 64BIT-NEXT:    [[CONV1:%.*]] = sext i32 [[CONV]] to i64
  20 // 64BIT-NEXT:    ret i64 [[CONV1]]
  21 //
  22 // 32BIT-LABEL: @testbuiltin_expect(
  23 // 32BIT:         [[EXPVAL:%.*]] = call i32 @llvm.expect.i32(i32 {{%.*}}, i32 23)
  24 // 32BIT-NEXT:    [[CMP:%.*]] = icmp eq i32 [[EXPVAL]], 23
  25 // 32BIT-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
  26 // 32BIT-NEXT:    ret i32 [[CONV]]
  27 //
  28 long testbuiltin_expect(long expression) {
  29   // The second parameter is a long constant.
  30   return __builtin_expect(expression, 23) == 23;
  31 }