| ; RUN: opt -march=hexagon -hexagon-loop-idiom -S < %s | FileCheck %s |
| ; REQUIRES: asserts |
| ; |
| ; Check for sane output, this used to crash. |
| ; CHECK: define void @fred |
| |
| ; The conversion of shifts from right to left failed, but the return |
| ; code was not checked and the transformation proceeded. |
| |
| target 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" |
| target triple = "hexagon" |
| |
| @A = common global [256 x i32] zeroinitializer, align 8 |
| |
| ; Function Attrs: noinline nounwind |
| define void @fred() local_unnamed_addr #0 { |
| b0: |
| br label %b1 |
| |
| b1: ; preds = %b13, %b0 |
| %v2 = phi i32 [ 0, %b0 ], [ %v16, %b13 ] |
| br label %b3 |
| |
| b3: ; preds = %b3, %b1 |
| %v4 = phi i32 [ %v2, %b1 ], [ %v10, %b3 ] |
| %v5 = phi i32 [ 0, %b1 ], [ %v11, %b3 ] |
| %v6 = and i32 %v4, 1 |
| %v7 = icmp ne i32 %v6, 0 |
| %v8 = lshr i32 %v4, 1 |
| %v9 = xor i32 %v8, 123456789 |
| %v10 = select i1 %v7, i32 %v9, i32 %v8 |
| %v11 = add nuw nsw i32 %v5, 1 |
| %v12 = icmp ne i32 %v11, 8 |
| br i1 %v12, label %b3, label %b13 |
| |
| b13: ; preds = %b3 |
| %v14 = phi i32 [ %v10, %b3 ] |
| %v15 = getelementptr inbounds [256 x i32], [256 x i32]* @A, i32 0, i32 %v2 |
| store i32 %v14, i32* %v15, align 4 |
| %v16 = add nuw nsw i32 %v2, 1 |
| %v17 = icmp ne i32 %v16, 256 |
| br i1 %v17, label %b1, label %b18 |
| |
| b18: ; preds = %b13 |
| ret void |
| } |
| |
| attributes #0 = { noinline nounwind "target-cpu"="hexagonv60" } |
