1 ; RUN: opt -hexagon-loop-idiom < %s -mtriple=hexagon-unknown-unknown -S \
4 target triple = "hexagon"
6 ; CHECK: define i64 @basic_pmpy
7 ; CHECK: llvm.hexagon.M4.pmpyw
8 define i64 @basic_pmpy(i32 %P, i32 %Q) #0 {
10 %conv = zext i32 %Q to i64
13 for.body: ; preds = %entry, %for.body
14 %i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
15 %R.06 = phi i64 [ 0, %entry ], [ %xor.R.06, %for.body ]
16 %shl = shl i32 1, %i.07
17 %and = and i32 %shl, %P
18 %tobool = icmp eq i32 %and, 0
19 %sh_prom = zext i32 %i.07 to i64
20 %shl1 = shl i64 %conv, %sh_prom
21 %xor = xor i64 %shl1, %R.06
22 %xor.R.06 = select i1 %tobool, i64 %R.06, i64 %xor
23 %inc = add nuw nsw i32 %i.07, 1
24 %exitcond = icmp ne i32 %inc, 32
25 br i1 %exitcond, label %for.body, label %for.end
27 for.end: ; preds = %for.body
28 %R.1.lcssa = phi i64 [ %xor.R.06, %for.body ]
32 attributes #0 = { nounwind }