| ; RUN: llc -march=hexagon < %s | FileCheck %s | |
| ; Do not want to see register copies in the loop. | |
| ; CHECK-NOT: r{{[0-9]*}} = r{{[0-9]*}} | |
| target triple = "hexagon" | |
| ; Function Attrs: nounwind readnone | |
| define i32 @f0(i32 %a0) #0 { | |
| b0: | |
| br label %b1 | |
| b1: ; preds = %b1, %b0 | |
| %v0 = phi i32 [ 0, %b0 ], [ %v1, %b1 ] | |
| %v1 = add nsw i32 %v0, 3 | |
| %v2 = add i32 %v1, -3 | |
| %v3 = icmp slt i32 %v2, %a0 | |
| br i1 %v3, label %b1, label %b2 | |
| b2: ; preds = %b1 | |
| %v4 = phi i32 [ %v1, %b1 ] | |
| %v5 = icmp slt i32 %v4, 100 | |
| %v6 = zext i1 %v5 to i32 | |
| ret i32 %v6 | |
| } | |
| attributes #0 = { nounwind readnone } |