| ; RUN: opt -loop-reduce -S < %s | FileCheck %s |
| ; |
| ; PR11356: likely wrong code bug |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-darwin" |
| |
| @g_66 = global [1 x i32] zeroinitializer, align 4 |
| @g_775 = global i32 0, align 4 |
| @g_752 = global i32 0, align 4 |
| @g_3 = global i32 0, align 4 |
| |
| ; Ensure that %div.i.i.us is not hoisted. |
| ; CHECK-LABEL: @main( |
| ; CHECK: for.body.i.i.us: |
| ; CHECK: %div.i.i.i.us |
| ; CHECK: %cmp5.i.i.us |
| define i32 @main() nounwind uwtable ssp { |
| entry: |
| %l_2 = alloca [1 x i32], align 4 |
| store i32 0, ptr %l_2, align 4 |
| %tmp = load i32, ptr @g_3, align 4 |
| %idxprom = sext i32 %tmp to i64 |
| %arrayidx1 = getelementptr inbounds [1 x i32], ptr %l_2, i64 0, i64 %idxprom |
| %tmp1 = load i32, ptr %arrayidx1, align 4 |
| %conv.i.i = and i32 %tmp1, 65535 |
| %tobool.i.i.i = icmp ne i32 %tmp, 0 |
| br label %codeRepl |
| |
| codeRepl.loopexit.us-lcssa: ; preds = %for.body.i.i, %codeRepl5 |
| br label %codeRepl.loopexit |
| |
| codeRepl.loopexit: ; preds = %codeRepl.loopexit.us-lcssa.us, %codeRepl.loopexit.us-lcssa |
| br label %codeRepl |
| |
| codeRepl: ; preds = %codeRepl.loopexit, %entry |
| br i1 %tobool.i.i.i, label %codeRepl.split.us, label %codeRepl.codeRepl.split_crit_edge |
| |
| codeRepl.codeRepl.split_crit_edge: ; preds = %codeRepl |
| br label %codeRepl.split |
| |
| codeRepl.split.us: ; preds = %codeRepl |
| br label %for.cond.i.i.us |
| |
| for.cond.i.i.us: ; preds = %for.inc.i.i.us, %codeRepl.split.us |
| %tmp2 = phi i32 [ 0, %codeRepl.split.us ], [ %add.i.i.us, %for.inc.i.i.us ] |
| br label %codeRepl5.us |
| |
| for.inc.i.i.us: ; preds = %for.body.i.i.us |
| %add.i.i.us = add nsw i32 %tmp2, 1 |
| store i32 %add.i.i.us, ptr @g_752, align 4 |
| br label %for.cond.i.i.us |
| |
| for.body.i.i.us: ; preds = %codeRepl5.us |
| %div.i.i.i.us = udiv i32 1, %conv.i.i |
| %cmp5.i.i.us = icmp eq i32 %div.i.i.i.us, %tmp2 |
| br i1 %cmp5.i.i.us, label %codeRepl.loopexit.us-lcssa.us, label %for.inc.i.i.us |
| |
| codeRepl5.us: ; preds = %for.cond.i.i.us |
| br i1 true, label %codeRepl.loopexit.us-lcssa.us, label %for.body.i.i.us |
| |
| codeRepl.loopexit.us-lcssa.us: ; preds = %codeRepl5.us, %for.body.i.i.us |
| br label %codeRepl.loopexit |
| |
| codeRepl.split: ; preds = %codeRepl.codeRepl.split_crit_edge |
| br label %for.cond.i.i |
| |
| for.cond.i.i: ; preds = %for.inc.i.i, %codeRepl.split |
| %tmp3 = phi i32 [ 0, %codeRepl.split ], [ %add.i.i, %for.inc.i.i ] |
| br label %codeRepl5 |
| |
| codeRepl5: ; preds = %for.cond.i.i |
| br i1 true, label %codeRepl.loopexit.us-lcssa, label %for.body.i.i |
| |
| for.body.i.i: ; preds = %codeRepl5 |
| %cmp5.i.i = icmp eq i32 0, %tmp3 |
| br i1 %cmp5.i.i, label %codeRepl.loopexit.us-lcssa, label %for.inc.i.i |
| |
| for.inc.i.i: ; preds = %for.body.i.i |
| %add.i.i = add nsw i32 %tmp3, 1 |
| store i32 %add.i.i, ptr @g_752, align 4 |
| br label %for.cond.i.i |
| |
| func_4.exit: ; No predecessors! |
| ret i32 0 |
| } |