1; RUN: opt -hexagon-loop-idiom < %s -mtriple=hexagon-unknown-unknown -S \ 2; RUN: | FileCheck %s 3; RUN: opt -p hexagon-loop-idiom < %s -mtriple=hexagon-unknown-unknown -S \ 4; RUN: | FileCheck %s 5 6target triple = "hexagon" 7 8; CHECK: define i64 @basic_pmpy 9; CHECK: llvm.hexagon.M4.pmpyw 10define i64 @basic_pmpy(i32 %P, i32 %Q) #0 { 11entry: 12 %conv = zext i32 %Q to i64 13 br label %for.body 14 15for.body: ; preds = %entry, %for.body 16 %i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 17 %R.06 = phi i64 [ 0, %entry ], [ %xor.R.06, %for.body ] 18 %shl = shl i32 1, %i.07 19 %and = and i32 %shl, %P 20 %tobool = icmp eq i32 %and, 0 21 %sh_prom = zext i32 %i.07 to i64 22 %shl1 = shl i64 %conv, %sh_prom 23 %xor = xor i64 %shl1, %R.06 24 %xor.R.06 = select i1 %tobool, i64 %R.06, i64 %xor 25 %inc = add nuw nsw i32 %i.07, 1 26 %exitcond = icmp ne i32 %inc, 32 27 br i1 %exitcond, label %for.body, label %for.end 28 29for.end: ; preds = %for.body 30 %R.1.lcssa = phi i64 [ %xor.R.06, %for.body ] 31 ret i64 %R.1.lcssa 32} 33 34attributes #0 = { nounwind } 35 36