diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll b/llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll new file mode 100644 index 00000000000..06cc7fcad06 --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll @@ -0,0 +1,43 @@ +; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s + +; GCN-LABEL: {{^}}add1: +; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}} +; GCN: v_addc_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, 0, v{{[0-9]+}}, [[CC]] +; GCN-NOT: v_cndmask + +define amdgpu_kernel void @add1(i32 addrspace(1)* nocapture %arg) { +bb: + %x = tail call i32 @llvm.amdgcn.workitem.id.x() + %y = tail call i32 @llvm.amdgcn.workitem.id.y() + %gep = getelementptr inbounds i32, i32 addrspace(1)* %arg, i32 %x + %v = load i32, i32 addrspace(1)* %gep, align 4 + %cmp = icmp ugt i32 %x, %y + %ext = zext i1 %cmp to i32 + %add = add i32 %v, %ext + store i32 %add, i32 addrspace(1)* %gep, align 4 + ret void +} + +; GCN-LABEL: {{^}}sub1: +; GCN: v_cmp_gt_u32_e{{32|64}} [[CC:[^,]+]], v{{[0-9]+}}, v{{[0-9]+}} +; GCN: v_subb_u32_e{{32|64}} v{{[0-9]+}}, {{[^,]+}}, v{{[0-9]+}}, 0, [[CC]] +; GCN-NOT: v_cndmask + +define amdgpu_kernel void @sub1(i32 addrspace(1)* nocapture %arg) { +bb: + %x = tail call i32 @llvm.amdgcn.workitem.id.x() + %y = tail call i32 @llvm.amdgcn.workitem.id.y() + %gep = getelementptr inbounds i32, i32 addrspace(1)* %arg, i32 %x + %v = load i32, i32 addrspace(1)* %gep, align 4 + %cmp = icmp ugt i32 %x, %y + %ext = sext i1 %cmp to i32 + %add = add i32 %v, %ext + store i32 %add, i32 addrspace(1)* %gep, align 4 + ret void +} + +declare i32 @llvm.amdgcn.workitem.id.x() #0 + +declare i32 @llvm.amdgcn.workitem.id.y() #0 + +attributes #0 = { nounwind readnone speculatable } |
