clang/test/CodeGenOpenCL/unroll-hint.cl

   1 // RUN: %clang_cc1 -emit-llvm -O0 -cl-std=CL2.0 -o - %s | FileCheck %s
   2 // RUN: %clang_cc1 -emit-llvm -O0 -cl-std=CL1.2 -o - %s | FileCheck %s
   3
   4 /*** for ***/
   5 void for_count()
   6 {
   7 // CHECK-LABEL: for_count
   8     __attribute__((opencl_unroll_hint(8)))
   9     for( int i = 0; i < 1000; ++i);
  10 // CHECK: br label %{{.*}}, !llvm.loop ![[FOR_COUNT:.*]]
  11 }
  12
  13 void for_disable()
  14 {
  15 // CHECK-LABEL: for_disable
  16     __attribute__((opencl_unroll_hint(1)))
  17     for( int i = 0; i < 1000; ++i);
  18 // CHECK: br label %{{.*}}, !llvm.loop ![[FOR_DISABLE:.*]]
  19 }
  20
  21 void for_enable()
  22 {
  23 // CHECK-LABEL: for_enable
  24     __attribute__((opencl_unroll_hint))
  25     for( int i = 0; i < 1000; ++i);
  26 // CHECK: br label %{{.*}}, !llvm.loop ![[FOR_ENABLE:.*]]
  27 }
  28
  29 /*** while ***/
  30 void while_count()
  31 {
  32 // CHECK-LABEL: while_count
  33     int i = 1000;
  34     __attribute__((opencl_unroll_hint(8)))
  35     while(i-->0);
  36 // CHECK: br label %{{.*}}, !llvm.loop ![[WHILE_COUNT:.*]]
  37 }
  38
  39 void while_disable()
  40 {
  41 // CHECK-LABEL: while_disable
  42     int i = 1000;
  43     __attribute__((opencl_unroll_hint(1)))
  44     while(i-->0);
  45 // CHECK: br label %{{.*}}, !llvm.loop ![[WHILE_DISABLE:.*]]
  46 }
  47
  48 void while_enable()
  49 {
  50 // CHECK-LABEL: while_enable
  51     int i = 1000;
  52     __attribute__((opencl_unroll_hint))
  53     while(i-->0);
  54 // CHECK: br label %{{.*}}, !llvm.loop ![[WHILE_ENABLE:.*]]
  55 }
  56
  57 /*** do ***/
  58 void do_count()
  59 {
  60 // CHECK-LABEL: do_count
  61     int i = 1000;
  62     __attribute__((opencl_unroll_hint(8)))
  63     do {} while(i--> 0);
  64 // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !llvm.loop ![[DO_COUNT:.*]]
  65 }
  66
  67 void do_disable()
  68 {
  69 // CHECK-LABEL: do_disable
  70     int i = 1000;
  71     __attribute__((opencl_unroll_hint(1)))
  72     do {} while(i--> 0);
  73 // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !llvm.loop ![[DO_DISABLE:.*]]
  74 }
  75
  76 void do_enable()
  77 {
  78 // CHECK-LABEL: do_enable
  79     int i = 1000;
  80     __attribute__((opencl_unroll_hint))
  81     do {} while(i--> 0);
  82 // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !llvm.loop ![[DO_ENABLE:.*]]
  83 }
  84
  85
  86 // CHECK: ![[FOR_COUNT]]     =  distinct !{![[FOR_COUNT]],  ![[COUNT:.*]]}
  87 // CHECK: ![[COUNT]]         =  !{!"llvm.loop.unroll.count", i32 8}
  88 // CHECK: ![[FOR_DISABLE]]   =  distinct !{![[FOR_DISABLE]],  ![[DISABLE:.*]]}
  89 // CHECK: ![[DISABLE]]       =  !{!"llvm.loop.unroll.disable"}
  90 // CHECK: ![[FOR_ENABLE]]      =  distinct !{![[FOR_ENABLE]],  ![[ENABLE:.*]]}
  91 // CHECK: ![[ENABLE]]          =  !{!"llvm.loop.unroll.enable"}
  92 // CHECK: ![[WHILE_COUNT]]   =  distinct !{![[WHILE_COUNT]],    ![[COUNT]]}
  93 // CHECK: ![[WHILE_DISABLE]] =  distinct !{![[WHILE_DISABLE]],  ![[DISABLE]]}
  94 // CHECK: ![[WHILE_ENABLE]]    =  distinct !{![[WHILE_ENABLE]],     ![[ENABLE]]}
  95 // CHECK: ![[DO_COUNT]]      =  distinct !{![[DO_COUNT]],       ![[COUNT]]}
  96 // CHECK: ![[DO_DISABLE]]    =  distinct !{![[DO_DISABLE]],     ![[DISABLE]]}
  97 // CHECK: ![[DO_ENABLE]]       =  distinct !{![[DO_ENABLE]],        ![[ENABLE]]}