1 ; RUN: llc -march=hexagon -enable-pipeliner -stats -o /dev/null < %s 2>&1 | FileCheck %s --check-prefix=STATS 2 ; REQUIRES: asserts 3 4 ; We're unable to pipeline a loop with a subreg as an operand of a Phi. 5 6 ; STATS-NOT: 1 pipeliner - Number of loops software pipelined 7 8 ; Function Attrs: nounwind readnone 9 define void @f0(i32 %a0) #0 { 10 b0: 11 %v0 = sext i32 %a0 to i64 12 br label %b1 13 14 b1: ; preds = %b1, %b0 15 %v1 = phi i32 [ 805306368, %b0 ], [ %v12, %b1 ] 16 %v2 = phi i32 [ 5, %b0 ], [ %v13, %b1 ] 17 %v3 = sext i32 %v1 to i64 18 %v4 = mul nsw i64 %v3, %v0 19 %v5 = lshr i64 %v4, 32 20 %v6 = trunc i64 %v5 to i32 21 %v7 = sub nsw i32 536870912, %v6 22 %v8 = sext i32 %v7 to i64 23 %v9 = mul nsw i64 %v8, %v3 24 %v10 = lshr i64 %v9, 32 25 %v11 = shl nuw nsw i64 %v10, 4 26 %v12 = trunc i64 %v11 to i32 27 %v13 = add nsw i32 %v2, -1 28 %v14 = icmp eq i32 %v13, 0 29 br i1 %v14, label %b2, label %b1 30 31 b2: ; preds = %b1 32 ret void 33 } 34 35 attributes #0 = { nounwind readnone "target-cpu"="hexagonv55" } 36
