| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6 |
| ; RUN: opt < %s -passes=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(ptr %b, ptr %c) nounwind { |
| ; CHECK-LABEL: define i32 @g( |
| ; CHECK-SAME: ptr [[B:%.*]], ptr [[C:%.*]]) #[[ATTR0:[0-9]+]] { |
| ; CHECK-NEXT: [[ENTRY:.*:]] |
| ; CHECK-NEXT: store i32 1, ptr [[B]], align 4 |
| ; CHECK-NEXT: store i32 2, ptr [[C]], align 4 |
| ; CHECK-NEXT: br i1 false, label %[[BB:.*]], label %[[BB2:.*]] |
| ; CHECK: [[BB]]: |
| ; CHECK-NEXT: br label %[[BB2]] |
| ; CHECK: [[BB2]]: |
| ; CHECK-NEXT: ret i32 [[CV]] |
| ; |
| entry: |
| store i32 1, ptr %b |
| store i32 2, ptr %c |
| |
| %t1 = icmp eq ptr %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 ptr [ %b, %entry ], [ %c, %bb ] ; <ptr> [#uses=1] |
| %cv = load i32, ptr %c_addr.0, align 4 ; <i32> [#uses=1] |
| ret i32 %cv |
| } |
| |
