| ; RUN: opt -S -indvars < %s | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.11.0" |
| |
| declare void @use(i1) |
| |
| define void @f(i32 %x) { |
| ; CHECK-LABEL: @f( |
| entry: |
| %conv = sext i32 %x to i64 |
| %sub = add i64 %conv, -1 |
| %ec = icmp sgt i32 %x, 0 |
| br i1 %ec, label %loop, label %leave |
| |
| loop: |
| ; CHECK: loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.inc, %loop ] |
| %iv.inc = add i64 %iv, 1 |
| %cmp = icmp slt i64 %iv, %sub |
| call void @use(i1 %cmp) |
| ; CHECK: call void @use(i1 %cmp) |
| ; CHECK-NOT: call void @use(i1 true) |
| |
| %be.cond = icmp slt i64 %iv.inc, %conv |
| br i1 %be.cond, label %loop, label %leave |
| |
| leave: |
| ret void |
| } |