| ; RUN: llc -mtriple=thumbv7-apple-ios -disable-code-place < %s | FileCheck %s |
| ; RUN: llc -mtriple=armv7-apple-ios -disable-code-place < %s | FileCheck %s |
| |
| ; LSR should compare against the post-incremented induction variable. |
| ; In this case, the immediate value is -2 which requires a cmn instruction. |
| ; |
| ; CHECK: f: |
| ; CHECK: %for.body |
| ; CHECK: sub{{.*}}[[IV:r[0-9]+]], #2 |
| ; CHECK: cmn{{.*}}[[IV]], #2 |
| ; CHECK: bne |
| define i32 @f(i32* nocapture %a, i32 %i) nounwind readonly ssp { |
| entry: |
| %cmp3 = icmp eq i32 %i, -2 |
| br i1 %cmp3, label %for.end, label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %bi.06 = phi i32 [ %i.addr.0.bi.0, %for.body ], [ 0, %entry ] |
| %i.addr.05 = phi i32 [ %sub, %for.body ], [ %i, %entry ] |
| %b.04 = phi i32 [ %.b.0, %for.body ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i32* %a, i32 %i.addr.05 |
| %0 = load i32* %arrayidx, align 4 |
| %cmp1 = icmp sgt i32 %0, %b.04 |
| %.b.0 = select i1 %cmp1, i32 %0, i32 %b.04 |
| %i.addr.0.bi.0 = select i1 %cmp1, i32 %i.addr.05, i32 %bi.06 |
| %sub = add nsw i32 %i.addr.05, -2 |
| %cmp = icmp eq i32 %i.addr.05, 0 |
| br i1 %cmp, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| %bi.0.lcssa = phi i32 [ 0, %entry ], [ %i.addr.0.bi.0, %for.body ] |
| ret i32 %bi.0.lcssa |
| } |