141 lines
		
	
	
		
			5.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			141 lines
		
	
	
		
			5.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
; RUN: opt < %s  -loop-vectorize -force-vector-width=4 -force-vector-interleave=2  -S | FileCheck %s
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define void @test1(float* noalias nocapture %a, float* noalias nocapture readonly %b) {
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entry:
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  br label %for.body
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; CHECK-LABEL: @test1
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; CHECK: vector.body:
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; CHECK: @llvm.experimental.noalias.scope.decl
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK: for.body:
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; CHECK: @llvm.experimental.noalias.scope.decl
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK: ret void
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for.body:                                         ; preds = %for.body, %entry
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  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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  %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv
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  %0 = load float, float* %arrayidx, align 4
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  %cmp1 = fcmp ogt float %0, 1.000000e+02
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  tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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  %add = fadd float %0, 1.000000e+00
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  %arrayidx5 = getelementptr inbounds float, float* %a, i64 %indvars.iv
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  store float %add, float* %arrayidx5, align 4
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  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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  %exitcond = icmp eq i64 %indvars.iv, 1599
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  br i1 %exitcond, label %for.end, label %for.body
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for.end:                                          ; preds = %for.body
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  ret void
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}
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declare void @llvm.experimental.noalias.scope.decl(metadata)
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%struct.data = type { float*, float* }
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define void @test2(%struct.data* nocapture readonly %d) {
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entry:
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  %b = getelementptr inbounds %struct.data, %struct.data* %d, i64 0, i32 1
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  %0 = load float*, float** %b, align 8
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  %ptrint = ptrtoint float* %0 to i64
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  %maskedptr = and i64 %ptrint, 31
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  %maskcond = icmp eq i64 %maskedptr, 0
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  %a = getelementptr inbounds %struct.data, %struct.data* %d, i64 0, i32 0
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  %1 = load float*, float** %a, align 8
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  %ptrint2 = ptrtoint float* %1 to i64
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  %maskedptr3 = and i64 %ptrint2, 31
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  %maskcond4 = icmp eq i64 %maskedptr3, 0
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  br label %for.body
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; CHECK-LABEL: @test2
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; CHECK: vector.body:
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; CHECK: @llvm.experimental.noalias.scope.decl(metadata [[SCOPE0_LIST:!.*]])
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; CHECK: @llvm.experimental.noalias.scope.decl(metadata [[SCOPE4_LIST:!.*]])
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK: for.body:
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; CHECK: @llvm.experimental.noalias.scope.decl(metadata [[SCOPE0_LIST]])
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; CHECK: @llvm.experimental.noalias.scope.decl(metadata [[SCOPE4_LIST]])
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK: ret void
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for.body:                                         ; preds = %for.body, %entry
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  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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  tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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  %arrayidx = getelementptr inbounds float, float* %0, i64 %indvars.iv
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  %2 = load float, float* %arrayidx, align 4
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  %add = fadd float %2, 1.000000e+00
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  tail call void @llvm.experimental.noalias.scope.decl(metadata !4)
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  %arrayidx5 = getelementptr inbounds float, float* %1, i64 %indvars.iv
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  store float %add, float* %arrayidx5, align 4
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  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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  %exitcond = icmp eq i64 %indvars.iv, 1599
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  br i1 %exitcond, label %for.end, label %for.body
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for.end:                                          ; preds = %for.body
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  ret void
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}
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define void @predicated_noalias_scope_decl(float* noalias nocapture readonly %a, float* noalias nocapture %b, i32 %n) {
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; Check that the vector.body still contains a llvm.experimental.noalias.scope.decl
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; CHECK-LABEL: @predicated_noalias_scope_decl(
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; CHECK:   vector.body:
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; CHECK:   call void @llvm.experimental.noalias.scope.decl
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK:   scalar.ph:
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK:   if.else:
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; CHECK:   call void @llvm.experimental.noalias.scope.decl
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; CHECK-NOT: @llvm.experimental.noalias.scope.decl
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; CHECK: }
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entry:
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  %cmp15 = icmp eq i32 %n, 0
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  br i1 %cmp15, label %for.cond.cleanup, label %for.body.preheader
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for.body.preheader:                               ; preds = %entry
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  %0 = zext i32 %n to i64
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  br label %for.body
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for.cond.cleanup.loopexit:                        ; preds = %if.end5
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  br label %for.cond.cleanup
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for.cond.cleanup:                                 ; preds = %for.cond.cleanup.loopexit, %entry
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  ret void
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for.body:                                         ; preds = %for.body.preheader, %if.end5
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  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %if.end5 ]
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  %cmp1 = icmp ult i64 %indvars.iv, 495616
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  br i1 %cmp1, label %if.end5, label %if.else
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if.else:                                          ; preds = %for.body
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  %cmp2 = icmp ult i64 %indvars.iv, 991232
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  tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
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  br label %if.end5
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if.end5:                                          ; preds = %for.body, %if.else
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  %x.0 = phi float [ 4.200000e+01, %if.else ], [ 2.300000e+01, %for.body ]
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  %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
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  %1 = load float, float* %arrayidx, align 4
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  %mul = fmul float %x.0, %1
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  %arrayidx7 = getelementptr inbounds float, float* %b, i64 %indvars.iv
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  store float %mul, float* %arrayidx7, align 4
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  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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  %cmp = icmp eq i64 %indvars.iv.next, %0
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  br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
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}
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!0 = !{ !1 }
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!1 = distinct !{ !1, !2 }
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!2 = distinct !{ !2 }
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!3 = distinct !{ !3, !2 }
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!4 = !{ !3 }
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; CHECK: [[SCOPE0_LIST]] = !{[[SCOPE0:!.*]]}
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; CHECK: [[SCOPE0]] = distinct !{[[SCOPE0]], [[SCOPE0_DOM:!.*]]}
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; CHECK: [[SCOPE0_DOM]] = distinct !{[[SCOPE0_DOM]]}
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; CHECK: [[SCOPE4_LIST]] = !{[[SCOPE4:!.*]]}
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; CHECK: [[SCOPE4]] = distinct !{[[SCOPE4]], [[SCOPE0_DOM]]}
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