1 ; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s
3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-apple-unknown"
6 ; This test failed the machine verifier because the trunc at the start of the
7 ; method was extracing a subreg and killing the source register. The kill flag was
8 ; invalid here as the source of the trunc could still be used elsewhere.
12 define i32 @test(i32 %block8x8) {
14 %tmp9 = trunc i32 %block8x8 to i1
15 %tmp10 = zext i1 %tmp9 to i32
16 %tmp11 = mul i32 %tmp10, 8
17 %tmp12 = zext i32 %tmp11 to i64
20 bb241: ; preds = %bb241, %bb
21 %lsr.iv3 = phi i64 [ %lsr.iv.next4, %bb241 ], [ %tmp12, %bb ]
22 %lsr.iv1 = phi i32 [ %lsr.iv.next2, %bb241 ], [ 0, %bb ]
23 %lsr.iv.next2 = add nuw nsw i32 %lsr.iv1, 1
24 %lsr.iv.next4 = add i64 %lsr.iv3, 32
25 %exitcond = icmp eq i32 %lsr.iv.next2, 8
26 br i1 %exitcond, label %.preheader.preheader, label %bb241
28 .preheader.preheader: ; preds = %bb241
29 %tmp18 = lshr i32 %block8x8, 1
32 bb270: ; preds = %bb270, %.preheader.preheader
33 %lsr.iv = phi i32 [ %lsr.iv.next, %bb270 ], [ %tmp18, %.preheader.preheader ]
34 %lsr.iv.next = add i32 %lsr.iv, 4
35 %tmp272 = icmp slt i32 %lsr.iv.next, 100
36 br i1 %tmp272, label %bb270, label %.loopexit
38 .loopexit: ; preds = %bb270