| ; RUN: opt < %s -gvn -S | FileCheck %s | |
| ; XFAIL: * | |
| ; FIXME: This should be promotable, but memdep/gvn don't track values | |
| ; path/edge sensitively enough. | |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" | |
| target triple = "i386-apple-darwin7" | |
| define i32 @g(i32* %b, i32* %c) nounwind { | |
| entry: | |
| store i32 1, i32* %b | |
| store i32 2, i32* %c | |
| %t1 = icmp eq i32* %b, null ; <i1> [#uses=1] | |
| br i1 %t1, label %bb, label %bb2 | |
| bb: ; preds = %entry | |
| br label %bb2 | |
| bb2: ; preds = %bb1, %bb | |
| %c_addr.0 = phi i32* [ %b, %entry ], [ %c, %bb ] ; <i32*> [#uses=1] | |
| %cv = load i32* %c_addr.0, align 4 ; <i32> [#uses=1] | |
| ret i32 %cv | |
| ; CHECK: bb2: | |
| ; CHECK-NOT: load i32 | |
| ; CHECK: ret i32 | |
| } | |