| ; do not replace a 'select' with 'or' in 'select - cmp - br' sequence |
| ; RUN: opt -instcombine -S < %s | FileCheck %s |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| declare void @f(i32) |
| |
| define void @test(i32 %len) { |
| entry: |
| %cmp = icmp ult i32 %len, 8 |
| %cond = select i1 %cmp, i32 %len, i32 8 |
| %cmp11 = icmp ult i32 0, %cond |
| br i1 %cmp11, label %for.body, label %for.end |
| |
| for.body: ; preds = %entry, %for.body |
| %i.02 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| tail call void @f(i32 %cond) |
| %inc = add i32 %i.02, 1 |
| %cmp1 = icmp ult i32 %inc, %cond |
| br i1 %cmp1, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| ; CHECK: select |
| } |
