llvm-6502/test/Transforms/Reassociate/shift-factor.ll
Chad Rosier 503ec9826c Revert "[Reassociate] As the expression tree is rewritten make sure the operands are"
This reverts commit r222142.  This is causing/exposing an execution-time regression
in spec2006/gcc and coremark on AArch64/A57/Ofast.

Conflicts:

	test/Transforms/Reassociate/optional-flags.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222398 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-19 23:21:20 +00:00

15 lines
378 B
LLVM

; There should be exactly one shift and one add left.
; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
define i32 @test1(i32 %X, i32 %Y) {
; CHECK-LABEL: test1
; CHECK-NEXT: %tmp = add i32 %Y, %X
; CHECK-NEXT: %tmp1 = shl i32 %tmp, 1
; CHECK-NEXT: ret i32 %tmp1
%tmp.2 = shl i32 %X, 1
%tmp.6 = shl i32 %Y, 1
%tmp.4 = add i32 %tmp.6, %tmp.2
ret i32 %tmp.4
}