| ; RUN: llc < %s -march=nvptx64 -mcpu=sm_35 | FileCheck %s | |
| target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64" | |
| target triple = "nvptx64-nvidia-cuda" | |
| ; CUDA code | |
| ; __global__ void foo(int b, int s) { | |
| ; #pragma unroll | |
| ; for (int i = 0; i < 4; ++i) { | |
| ; if (cond(i)) | |
| ; use((b + i) * s); | |
| ; } | |
| ; } | |
| define void @foo(i32 %b, i32 %s) { | |
| ; CHECK-LABEL: .visible .entry foo( | |
| entry: | |
| ; CHECK: ld.param.u32 [[s:%r[0-9]+]], [foo_param_1]; | |
| ; CHECK: ld.param.u32 [[b:%r[0-9]+]], [foo_param_0]; | |
| %call = tail call zeroext i1 @cond(i32 0) | |
| br i1 %call, label %if.then, label %for.inc | |
| if.then: ; preds = %entry | |
| %mul = mul nsw i32 %b, %s | |
| ; CHECK: mul.lo.s32 [[a0:%r[0-9]+]], [[b]], [[s]] | |
| tail call void @use(i32 %mul) | |
| br label %for.inc | |
| for.inc: ; preds = %entry, %if.then | |
| %call.1 = tail call zeroext i1 @cond(i32 1) | |
| br i1 %call.1, label %if.then.1, label %for.inc.1 | |
| if.then.1: ; preds = %for.inc | |
| %add.1 = add nsw i32 %b, 1 | |
| %mul.1 = mul nsw i32 %add.1, %s | |
| ; CHECK: add.s32 [[a1:%r[0-9]+]], [[a0]], [[s]] | |
| tail call void @use(i32 %mul.1) | |
| br label %for.inc.1 | |
| for.inc.1: ; preds = %if.then.1, %for.inc | |
| %call.2 = tail call zeroext i1 @cond(i32 2) | |
| br i1 %call.2, label %if.then.2, label %for.inc.2 | |
| if.then.2: ; preds = %for.inc.1 | |
| %add.2 = add nsw i32 %b, 2 | |
| %mul.2 = mul nsw i32 %add.2, %s | |
| ; CHECK: add.s32 [[a2:%r[0-9]+]], [[a1]], [[s]] | |
| tail call void @use(i32 %mul.2) | |
| br label %for.inc.2 | |
| for.inc.2: ; preds = %if.then.2, %for.inc.1 | |
| %call.3 = tail call zeroext i1 @cond(i32 3) | |
| br i1 %call.3, label %if.then.3, label %for.inc.3 | |
| if.then.3: ; preds = %for.inc.2 | |
| %add.3 = add nsw i32 %b, 3 | |
| %mul.3 = mul nsw i32 %add.3, %s | |
| ; CHECK: add.s32 [[a3:%r[0-9]+]], [[a2]], [[s]] | |
| tail call void @use(i32 %mul.3) | |
| br label %for.inc.3 | |
| for.inc.3: ; preds = %if.then.3, %for.inc.2 | |
| ret void | |
| } | |
| declare zeroext i1 @cond(i32) | |
| declare void @use(i32) | |
| !nvvm.annotations = !{!0} | |
| !0 = !{void (i32, i32)* @foo, !"kernel", i32 1} |