llvm/test/Transforms/NaryReassociate/pr24301.ll
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
}