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Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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@ -1,3 +0,0 @@
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if not 'AMDGPU' in config.root.targets:
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config.unsupported = True
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@ -1,33 +0,0 @@
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; RUN: opt -mtriple=amdgcn-unknown-amdhsa -mcpu=hawaii -loop-unroll -S < %s | FileCheck %s
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; CHECK-LABEL: @test_unroll_convergent_barrier(
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; CHECK: call void @llvm.amdgcn.s.barrier()
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; CHECK: call void @llvm.amdgcn.s.barrier()
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; CHECK: call void @llvm.amdgcn.s.barrier()
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; CHECK: call void @llvm.amdgcn.s.barrier()
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; CHECK-NOT: br
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define amdgpu_kernel void @test_unroll_convergent_barrier(i32 addrspace(1)* noalias nocapture %out, i32 addrspace(1)* noalias nocapture %in) #0 {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
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%arrayidx.in = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 %indvars.iv
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%arrayidx.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %indvars.iv
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%load = load i32, i32 addrspace(1)* %arrayidx.in
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call void @llvm.amdgcn.s.barrier() #1
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%add = add i32 %load, %sum.02
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store i32 %add, i32 addrspace(1)* %arrayidx.out
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%indvars.iv.next = add i32 %indvars.iv, 1
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%exitcond = icmp eq i32 %indvars.iv.next, 4
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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ret void
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}
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declare void @llvm.amdgcn.s.barrier() #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind convergent }
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@ -1,154 +0,0 @@
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; RUN: opt -mtriple=amdgcn-unknown-amdhsa -loop-unroll -S -amdgpu-unroll-threshold-private=20000 %s | FileCheck %s
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; Check that we full unroll loop to be able to eliminate alloca
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; CHECK-LABEL: @non_invariant_ind
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; CHECK: for.body:
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; CHECK-NOT: br
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; CHECK: store i32 %tmp15, i32 addrspace(1)* %arrayidx7, align 4
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; CHECK: ret void
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define amdgpu_kernel void @non_invariant_ind(i32 addrspace(1)* nocapture %a, i32 %x) {
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entry:
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%arr = alloca [64 x i32], align 4
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%tmp1 = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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br label %for.body
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for.cond.cleanup: ; preds = %for.body
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%arrayidx5 = getelementptr inbounds [64 x i32], [64 x i32]* %arr, i32 0, i32 %x
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%tmp15 = load i32, i32* %arrayidx5, align 4
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%arrayidx7 = getelementptr inbounds i32, i32 addrspace(1)* %a, i32 %tmp1
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store i32 %tmp15, i32 addrspace(1)* %arrayidx7, align 4
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ret void
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for.body: ; preds = %for.body, %entry
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%i.015 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%idxprom = sext i32 %i.015 to i64
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%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %a, i64 %idxprom
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%tmp16 = load i32, i32 addrspace(1)* %arrayidx, align 4
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%add = add nsw i32 %i.015, %tmp1
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%rem = srem i32 %add, 64
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%arrayidx3 = getelementptr inbounds [64 x i32], [64 x i32]* %arr, i32 0, i32 %rem
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store i32 %tmp16, i32* %arrayidx3, align 4
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%inc = add nuw nsw i32 %i.015, 1
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%exitcond = icmp eq i32 %inc, 100
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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; Check that we unroll inner loop but not outer
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; CHECK-LABEL: @invariant_ind
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; CHECK: %[[exitcond:[^ ]+]] = icmp eq i32 %{{.*}}, 32
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; CHECK: br i1 %[[exitcond]]
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; CHECK-NOT: icmp eq i32 %{{.*}}, 100
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define amdgpu_kernel void @invariant_ind(i32 addrspace(1)* nocapture %a, i32 %x) {
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entry:
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%arr = alloca [64 x i32], align 4
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%tmp1 = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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br label %for.cond2.preheader
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for.cond2.preheader: ; preds = %for.cond.cleanup5, %entry
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%i.026 = phi i32 [ 0, %entry ], [ %inc10, %for.cond.cleanup5 ]
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%idxprom = sext i32 %i.026 to i64
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%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %a, i64 %idxprom
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%tmp15 = load i32, i32 addrspace(1)* %arrayidx, align 4
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br label %for.body6
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for.cond.cleanup: ; preds = %for.cond.cleanup5
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%arrayidx13 = getelementptr inbounds [64 x i32], [64 x i32]* %arr, i32 0, i32 %x
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%tmp16 = load i32, i32* %arrayidx13, align 4
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%arrayidx15 = getelementptr inbounds i32, i32 addrspace(1)* %a, i32 %tmp1
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store i32 %tmp16, i32 addrspace(1)* %arrayidx15, align 4
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ret void
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for.cond.cleanup5: ; preds = %for.body6
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%inc10 = add nuw nsw i32 %i.026, 1
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%exitcond27 = icmp eq i32 %inc10, 32
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br i1 %exitcond27, label %for.cond.cleanup, label %for.cond2.preheader
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for.body6: ; preds = %for.body6, %for.cond2.preheader
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%j.025 = phi i32 [ 0, %for.cond2.preheader ], [ %inc, %for.body6 ]
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%add = add nsw i32 %j.025, %tmp1
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%rem = srem i32 %add, 64
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%arrayidx8 = getelementptr inbounds [64 x i32], [64 x i32]* %arr, i32 0, i32 %rem
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store i32 %tmp15, i32* %arrayidx8, align 4
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%inc = add nuw nsw i32 %j.025, 1
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%exitcond = icmp eq i32 %inc, 100
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br i1 %exitcond, label %for.cond.cleanup5, label %for.body6
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}
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; Check we do not enforce unroll if alloca is too big
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; CHECK-LABEL: @too_big
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; CHECK: for.body:
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; CHECK: icmp eq i32 %{{.*}}, 100
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; CHECK: br
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define amdgpu_kernel void @too_big(i32 addrspace(1)* nocapture %a, i32 %x) {
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entry:
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%arr = alloca [256 x i32], align 4
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%tmp1 = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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br label %for.body
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for.cond.cleanup: ; preds = %for.body
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%arrayidx5 = getelementptr inbounds [256 x i32], [256 x i32]* %arr, i32 0, i32 %x
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%tmp15 = load i32, i32* %arrayidx5, align 4
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%arrayidx7 = getelementptr inbounds i32, i32 addrspace(1)* %a, i32 %tmp1
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store i32 %tmp15, i32 addrspace(1)* %arrayidx7, align 4
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ret void
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for.body: ; preds = %for.body, %entry
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%i.015 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%idxprom = sext i32 %i.015 to i64
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%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %a, i64 %idxprom
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%tmp16 = load i32, i32 addrspace(1)* %arrayidx, align 4
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%add = add nsw i32 %i.015, %tmp1
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%rem = srem i32 %add, 64
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%arrayidx3 = getelementptr inbounds [256 x i32], [256 x i32]* %arr, i32 0, i32 %rem
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store i32 %tmp16, i32* %arrayidx3, align 4
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%inc = add nuw nsw i32 %i.015, 1
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%exitcond = icmp eq i32 %inc, 100
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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; Check we do not enforce unroll if alloca is dynamic
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; CHECK-LABEL: @dynamic_size_alloca(
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; CHECK: alloca i32, i32 %n
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; CHECK: for.body:
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; CHECK: icmp eq i32 %{{.*}}, 100
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; CHECK: br
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define amdgpu_kernel void @dynamic_size_alloca(i32 addrspace(1)* nocapture %a, i32 %n, i32 %x) {
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entry:
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%arr = alloca i32, i32 %n, align 4
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%tmp1 = tail call i32 @llvm.amdgcn.workitem.id.x() #1
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br label %for.body
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for.cond.cleanup: ; preds = %for.body
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%arrayidx5 = getelementptr inbounds i32, i32* %arr, i32 %x
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%tmp15 = load i32, i32* %arrayidx5, align 4
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%arrayidx7 = getelementptr inbounds i32, i32 addrspace(1)* %a, i32 %tmp1
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store i32 %tmp15, i32 addrspace(1)* %arrayidx7, align 4
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ret void
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for.body: ; preds = %for.body, %entry
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%i.015 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%idxprom = sext i32 %i.015 to i64
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%arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %a, i64 %idxprom
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%tmp16 = load i32, i32 addrspace(1)* %arrayidx, align 4
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%add = add nsw i32 %i.015, %tmp1
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%rem = srem i32 %add, 64
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%arrayidx3 = getelementptr inbounds i32, i32* %arr, i32 %rem
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store i32 %tmp16, i32* %arrayidx3, align 4
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%inc = add nuw nsw i32 %i.015, 1
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%exitcond = icmp eq i32 %inc, 100
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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declare i8 addrspace(2)* @llvm.amdgcn.dispatch.ptr() #1
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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declare i32 @llvm.amdgcn.workgroup.id.x() #1
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declare i8 addrspace(2)* @llvm.amdgcn.implicitarg.ptr() #1
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attributes #1 = { nounwind readnone }
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