Files
llvm/test/Transforms/NaryReassociate/pr24301.ll
T
Wei Mi 3a4fa31d34 [PM] Port NaryReassociate to the new PM
Differential Revision: https://reviews.llvm.org/D22648


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276349 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-21 22:28:52 +00:00

16 lines
485 B
LLVM

; RUN: opt < %s -nary-reassociate -S | FileCheck %s
; RUN: opt < %s -passes='nary-reassociate' -S | FileCheck %s
define i32 @foo(i32 %tmp4) {
; CHECK-LABEL: @foo(
entry:
%tmp5 = add i32 %tmp4, 8
%tmp13 = add i32 %tmp4, -128 ; deleted
%tmp14 = add i32 %tmp13, 8 ; => %tmp5 + -128
%tmp21 = add i32 119, %tmp4
; do not rewrite %tmp23 against %tmp13 because %tmp13 is already deleted
%tmp23 = add i32 %tmp21, -128
; CHECK: %tmp23 = add i32 %tmp21, -128
ret i32 %tmp23
}