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1; RUN: opt -hexagon-loop-idiom -S < %s | FileCheck %s2; RUN: opt -p hexagon-loop-idiom -S < %s | FileCheck %s3; REQUIRES: asserts4;5; Check for sane output, this used to crash.6; CHECK: define void @fred7 8; The conversion of shifts from right to left failed, but the return9; code was not checked and the transformation proceeded.10 11target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"12target triple = "hexagon"13 14@A = common global [256 x i32] zeroinitializer, align 815 16; Function Attrs: noinline nounwind17define void @fred() local_unnamed_addr #0 {18b0:19 br label %b120 21b1: ; preds = %b13, %b022 %v2 = phi i32 [ 0, %b0 ], [ %v16, %b13 ]23 br label %b324 25b3: ; preds = %b3, %b126 %v4 = phi i32 [ %v2, %b1 ], [ %v10, %b3 ]27 %v5 = phi i32 [ 0, %b1 ], [ %v11, %b3 ]28 %v6 = and i32 %v4, 129 %v7 = icmp ne i32 %v6, 030 %v8 = lshr i32 %v4, 131 %v9 = xor i32 %v8, 12345678932 %v10 = select i1 %v7, i32 %v9, i32 %v833 %v11 = add nuw nsw i32 %v5, 134 %v12 = icmp ne i32 %v11, 835 br i1 %v12, label %b3, label %b1336 37b13: ; preds = %b338 %v14 = phi i32 [ %v10, %b3 ]39 %v15 = getelementptr inbounds [256 x i32], ptr @A, i32 0, i32 %v240 store i32 %v14, ptr %v15, align 441 %v16 = add nuw nsw i32 %v2, 142 %v17 = icmp ne i32 %v16, 25643 br i1 %v17, label %b1, label %b1844 45b18: ; preds = %b1346 ret void47}48 49attributes #0 = { noinline nounwind "target-cpu"="hexagonv60" }50