| ; RUN: opt -basicaa -gvn -S < %s | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64" |
| |
| ; CHECK: @foo |
| ; CHECK: entry.end_crit_edge: |
| ; CHECK: %n.pre = load i32* %q.phi.trans.insert |
| ; CHECK: then: |
| ; CHECK: store i32 %z |
| ; CHECK: end: |
| ; CHECK: %n = phi i32 [ %n.pre, %entry.end_crit_edge ], [ %z, %then ] |
| ; CHECK: ret i32 %n |
| |
| @G = external global [100 x i32] |
| define i32 @foo(i32 %x, i32 %z) { |
| entry: |
| %tobool = icmp eq i32 %x, 0 |
| br i1 %tobool, label %end, label %then |
| |
| then: |
| %i = sext i32 %x to i64 |
| %p = getelementptr [100 x i32]* @G, i64 0, i64 %i |
| store i32 %z, i32* %p |
| br label %end |
| |
| end: |
| %j = sext i32 %x to i64 |
| %q = getelementptr [100 x i32]* @G, i64 0, i64 %j |
| %n = load i32* %q |
| ret i32 %n |
| } |