| ; RUN: opt < %s -S -passes=licm | FileCheck %s |
| ; RUN: opt -aa-pipeline=basic-aa -passes='require<opt-remark-emit>,loop-mssa(licm)' < %s -S | FileCheck %s |
| ; This fixes PR22460 |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc" |
| |
| @in = internal unnamed_addr global ptr null, align 8 |
| @out = internal unnamed_addr global ptr null, align 8 |
| |
| ; CHECK-LABEL: @bar |
| ; CHECK: entry: |
| ; CHECK: load i64, ptr @in |
| ; CHECK: do.body: |
| ; CHECK-NOT: load |
| |
| define i64 @bar(i32 %N) { |
| entry: |
| br label %do.body |
| |
| do.body: ; preds = %l2, %entry |
| %i.0 = phi i32 [ 0, %entry ], [ %inc, %l2 ] |
| %total = phi i64 [ 0, %entry ], [ %next, %l2 ] |
| %c = icmp eq i32 %N, 6 |
| br i1 %c, label %l1, label %do.body.l2_crit_edge |
| |
| do.body.l2_crit_edge: ; preds = %do.body |
| %inval.pre = load ptr, ptr @in, align 8 |
| br label %l2 |
| |
| l1: ; preds = %do.body |
| %v1 = load i64, ptr @in, align 8 |
| store i64 %v1, ptr @out, align 8 |
| %0 = inttoptr i64 %v1 to ptr |
| br label %l2 |
| |
| l2: ; preds = %do.body.l2_crit_edge, %l1 |
| %inval = phi ptr [ %inval.pre, %do.body.l2_crit_edge ], [ %0, %l1 ] |
| %int = ptrtoint ptr %inval to i64 |
| %next = add i64 %total, %int |
| %inc = add nsw i32 %i.0, 1 |
| %cmp = icmp slt i32 %inc, %N |
| br i1 %cmp, label %do.body, label %do.end |
| |
| do.end: ; preds = %l2 |
| ret i64 %total |
| } |