1 ; RUN: llc -march=hexagon -enable-pipeliner-opt-size -hexagon-initial-cfg-cleanup=0 < %s -pipeliner-experimental-cg=true | FileCheck %s
3 ; Test that we generate the correct names for the phis in the kernel for the
4 ; incoming values. In this case, the loop contains a phi and has another phi
5 ; as its loop definition, and the two phis are scheduled in different stages.
7 ; vreg5 = phi(x, vreg4) is scheduled in stage 1, cycle 0
8 ; vreg4 = phi(y, z) is scheduled in stage 0, cycle 0
10 ; CHECK-DAG: :[[REG0:[0-9]+]]{{.*}} = {{.*}},#17
11 ; CHECK-DAG: loop0(.LBB0_[[LOOP:.]],
12 ; CHECK: .LBB0_[[LOOP]]:
13 ; CHECK: r{{[0-9]+}} = sxth(r[[REG0]])
16 ; Function Attrs: nounwind optsize
17 define void @f0() #0 {
19 %v0 = getelementptr [8 x i16], ptr undef, i32 0, i32 7
25 b2: ; preds = %b2, %b0
26 %v2 = phi i32 [ 7, %b0 ], [ %v11, %b2 ]
27 %v3 = phi i16 [ 17, %b0 ], [ %v7, %b2 ]
28 %v4 = phi i16 [ 18, %b0 ], [ %v3, %b2 ]
29 %v5 = sext i16 %v4 to i32
30 %v6 = getelementptr i16, ptr null, i32 -2
31 %v7 = load i16, ptr %v6, align 2
32 %v8 = sext i16 %v7 to i32
33 %v9 = tail call i32 @llvm.hexagon.A2.subsat(i32 %v5, i32 %v8)
34 %v10 = trunc i32 %v9 to i16
35 store i16 %v10, ptr null, align 2
36 %v11 = add nsw i32 %v2, -1
37 %v12 = icmp sgt i32 %v11, 1
38 br i1 %v12, label %b2, label %b1
41 ; Function Attrs: nounwind readnone
42 declare i32 @llvm.hexagon.A2.subsat(i32, i32) #1
44 attributes #0 = { nounwind optsize "target-cpu"="hexagonv60" }
45 attributes #1 = { nounwind readnone }