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      1 ; RUN: llc -march=hexagon -O2 -spill-func-threshold=4 < %s | FileCheck %s --check-prefix=NOSAVE
      2 ; RUN: llc -march=hexagon -O2 -spill-func-threshold=2 < %s | FileCheck %s --check-prefix=SAVE
      3 ; NOSAVE-NOT: call __save_r16_
      4 ; SAVE: call __save_r16_
      5 
      6 target triple = "hexagon"
      7 
      8 %s.0 = type { %s.1, [50 x %s.2], i8, i32 }
      9 %s.1 = type { i8, i8, i8, i8, i8, i8, i8, i8, [2 x i8], [2 x i8], [4 x i8] }
     10 %s.2 = type { %s.3, [16 x i8] }
     11 %s.3 = type { %s.4, %s.5 }
     12 %s.4 = type { i8, i8, [2 x i8], [4 x i8] }
     13 %s.5 = type { i16, i16 }
     14 
     15 @g0 = private unnamed_addr constant [21 x i8] c"....................\00", align 1
     16 @g1 = internal unnamed_addr global [1 x %s.0*] zeroinitializer, align 4
     17 
     18 ; Function Attrs: nounwind
     19 define void @f0(i8 zeroext %a0, %s.0** nocapture %a1) #0 {
     20 b0:
     21   %v0 = tail call i8* @f1(i8 zeroext %a0, i32 1424, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @g0, i32 0, i32 0), i32 118) #0
     22   %v1 = bitcast i8* %v0 to %s.0*
     23   %v2 = zext i8 %a0 to i32
     24   %v3 = getelementptr inbounds [1 x %s.0*], [1 x %s.0*]* @g1, i32 0, i32 %v2
     25   store %s.0* %v1, %s.0** %v3, align 4, !tbaa !0
     26   store %s.0* %v1, %s.0** %a1, align 4, !tbaa !0
     27   ret void
     28 }
     29 
     30 declare i8* @f1(i8 zeroext, i32, i8*, i32)
     31 
     32 ; Function Attrs: nounwind
     33 define void @f2(i8 zeroext %a0) #0 {
     34 b0:
     35   %v0 = zext i8 %a0 to i32
     36   %v1 = getelementptr inbounds [1 x %s.0*], [1 x %s.0*]* @g1, i32 0, i32 %v0
     37   %v2 = load %s.0*, %s.0** %v1, align 4, !tbaa !0
     38   %v3 = getelementptr inbounds %s.0, %s.0* %v2, i32 0, i32 0, i32 0
     39   tail call void @f3(i8 zeroext %a0, i8* %v3, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @g0, i32 0, i32 0), i32 142) #0
     40   store %s.0* null, %s.0** %v1, align 4, !tbaa !0
     41   ret void
     42 }
     43 
     44 declare void @f3(i8 zeroext, i8*, i8*, i32)
     45 
     46 ; Function Attrs: nounwind
     47 define void @f4(i8 zeroext %a0, i8 zeroext %a1, i8 zeroext %a2, i8 zeroext %a3, i8 zeroext %a4) #0 {
     48 b0:
     49   %v0 = alloca [7 x i32], align 4
     50   %v1 = zext i8 %a0 to i32
     51   %v2 = getelementptr inbounds [1 x %s.0*], [1 x %s.0*]* @g1, i32 0, i32 %v1
     52   %v3 = load %s.0*, %s.0** %v2, align 4, !tbaa !0
     53   %v4 = getelementptr inbounds %s.0, %s.0* %v3, i32 0, i32 3
     54   %v5 = load i32, i32* %v4, align 4, !tbaa !4
     55   %v6 = and i32 %v5, 8
     56   %v7 = icmp eq i32 %v6, 0
     57   br i1 %v7, label %b2, label %b1
     58 
     59 b1:                                               ; preds = %b0
     60   %v8 = getelementptr inbounds [7 x i32], [7 x i32]* %v0, i32 0, i32 0
     61   %v9 = bitcast [7 x i32]* %v0 to %s.2*
     62   %v10 = call i32 @f5() #0
     63   %v11 = getelementptr [7 x i32], [7 x i32]* %v0, i32 0, i32 1
     64   store i32 %v10, i32* %v11, align 4
     65   %v12 = call zeroext i16 @f6(i8 zeroext %a0) #0
     66   %v13 = zext i16 %v12 to i32
     67   %v14 = shl nuw i32 %v13, 16
     68   %v15 = or i32 %v14, 260
     69   store i32 %v15, i32* %v8, align 4
     70   %v16 = zext i8 %a1 to i32
     71   %v17 = getelementptr [7 x i32], [7 x i32]* %v0, i32 0, i32 2
     72   %v18 = zext i8 %a2 to i32
     73   %v19 = shl nuw nsw i32 %v18, 12
     74   %v20 = zext i8 %a3 to i32
     75   %v21 = shl nuw nsw i32 %v20, 16
     76   %v22 = and i32 %v21, 458752
     77   %v23 = and i32 %v19, 61440
     78   %v24 = zext i8 %a4 to i32
     79   %v25 = shl nuw nsw i32 %v24, 19
     80   %v26 = and i32 %v25, 3670016
     81   %v27 = or i32 %v23, %v16
     82   %v28 = or i32 %v27, %v22
     83   %v29 = or i32 %v28, %v26
     84   %v30 = call zeroext i8 @f7(i8 zeroext %a0, i8 zeroext %a1) #0
     85   %v31 = zext i8 %v30 to i32
     86   %v32 = shl nuw nsw i32 %v31, 8
     87   %v33 = and i32 %v32, 3840
     88   %v34 = or i32 %v33, %v29
     89   store i32 %v34, i32* %v17, align 4
     90   %v35 = call i32 bitcast (i32 (...)* @f8 to i32 (i32, %s.2*)*)(i32 %v1, %s.2* %v9) #0
     91   br label %b2
     92 
     93 b2:                                               ; preds = %b1, %b0
     94   ret void
     95 }
     96 
     97 declare i32 @f5()
     98 
     99 declare zeroext i16 @f6(i8 zeroext)
    100 
    101 declare zeroext i8 @f7(i8 zeroext, i8 zeroext)
    102 
    103 declare i32 @f8(...)
    104 
    105 attributes #0 = { nounwind }
    106 
    107 !0 = !{!1, !1, i64 0}
    108 !1 = !{!"any pointer", !2}
    109 !2 = !{!"omnipotent char", !3}
    110 !3 = !{!"Simple C/C++ TBAA"}
    111 !4 = !{!5, !5, i64 0}
    112 !5 = !{!"long", !2}
    113