1 ; RUN: llc -march=hexagon -mcpu=hexagonv5 -O2 -disable-block-placement=0 < %s | FileCheck %s 2 3 ; Test that there is no redundant register assignment in the hardware loop 4 ; preheader. 5 6 ; CHECK-NOT: r{{.*}} = #5 7 8 @g = external global i32 9 10 define void @foo() #0 { 11 entry: 12 br i1 undef, label %if.end38, label %for.body 13 14 for.body: 15 %loopIdx.051 = phi i32 [ %inc, %for.body ], [ 0, %entry ] 16 store i32 1, i32* @g, align 4 17 %inc = add i32 %loopIdx.051, 1 18 %cmp9 = icmp ult i32 %inc, 5 19 br i1 %cmp9, label %for.body, label %if.end38 20 21 if.end38: 22 ret void 23 } 24
