1 ; RUN: llc < %s -march=nvptx64 -mcpu=sm_35 | FileCheck %s 2 3 target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" 4 target triple = "nvptx64-nvidia-cuda" 5 6 ; CUDA code 7 ; __global__ void foo(int b, int s) { 8 ; #pragma unroll 9 ; for (int i = 0; i < 4; ++i) { 10 ; if (cond(i)) 11 ; use((b + i) * s); 12 ; } 13 ; } 14 define void @foo(i32 %b, i32 %s) { 15 ; CHECK-LABEL: .visible .entry foo( 16 entry: 17 ; CHECK: ld.param.u32 [[s:%r[0-9]+]], [foo_param_1]; 18 ; CHECK: ld.param.u32 [[b:%r[0-9]+]], [foo_param_0]; 19 %call = tail call zeroext i1 @cond(i32 0) 20 br i1 %call, label %if.then, label %for.inc 21 22 if.then: ; preds = %entry 23 %mul = mul nsw i32 %b, %s 24 ; CHECK: mul.lo.s32 [[a0:%r[0-9]+]], [[b]], [[s]] 25 tail call void @use(i32 %mul) 26 br label %for.inc 27 28 for.inc: ; preds = %entry, %if.then 29 %call.1 = tail call zeroext i1 @cond(i32 1) 30 br i1 %call.1, label %if.then.1, label %for.inc.1 31 32 if.then.1: ; preds = %for.inc 33 %add.1 = add nsw i32 %b, 1 34 %mul.1 = mul nsw i32 %add.1, %s 35 ; CHECK: add.s32 [[a1:%r[0-9]+]], [[a0]], [[s]] 36 tail call void @use(i32 %mul.1) 37 br label %for.inc.1 38 39 for.inc.1: ; preds = %if.then.1, %for.inc 40 %call.2 = tail call zeroext i1 @cond(i32 2) 41 br i1 %call.2, label %if.then.2, label %for.inc.2 42 43 if.then.2: ; preds = %for.inc.1 44 %add.2 = add nsw i32 %b, 2 45 %mul.2 = mul nsw i32 %add.2, %s 46 ; CHECK: add.s32 [[a2:%r[0-9]+]], [[a1]], [[s]] 47 tail call void @use(i32 %mul.2) 48 br label %for.inc.2 49 50 for.inc.2: ; preds = %if.then.2, %for.inc.1 51 %call.3 = tail call zeroext i1 @cond(i32 3) 52 br i1 %call.3, label %if.then.3, label %for.inc.3 53 54 if.then.3: ; preds = %for.inc.2 55 %add.3 = add nsw i32 %b, 3 56 %mul.3 = mul nsw i32 %add.3, %s 57 ; CHECK: add.s32 [[a3:%r[0-9]+]], [[a2]], [[s]] 58 tail call void @use(i32 %mul.3) 59 br label %for.inc.3 60 61 for.inc.3: ; preds = %if.then.3, %for.inc.2 62 ret void 63 } 64 65 declare zeroext i1 @cond(i32) 66 67 declare void @use(i32) 68 69 !nvvm.annotations = !{!0} 70 71 !0 = !{void (i32, i32)* @foo, !"kernel", i32 1} 72
