Files
clang-p2996/llvm/test/Transforms/InstCombine/volatile_store.ll
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

23 lines
557 B
LLVM

; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
@x = weak global i32 0
define void @self_assign_1() {
; CHECK-LABEL: @self_assign_1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP:%.*]] = load volatile i32, i32* @x, align 4
; CHECK-NEXT: store volatile i32 [[TMP]], i32* @x, align 4
; CHECK-NEXT: br label %return
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
%tmp = load volatile i32, i32* @x
store volatile i32 %tmp, i32* @x
br label %return
return:
ret void
}