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view test/CodeGen/X86/shift-combine.ll @ 33:e4204d083e25

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LLVM 3.5
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 14:32:10 +0900
parents 95c75e76d11b
children afa8332a0e37
line wrap: on
line source

; RUN: llc -march=x86 < %s | FileCheck %s

@array = weak global [4 x i32] zeroinitializer

define i32 @test_lshr_and(i32 %x) {
; CHECK-LABEL: test_lshr_and:
; CHECK-NOT: shrl
; CHECK: andl $12,
; CHECK: movl {{.*}}array{{.*}},
; CHECK: ret

entry:
  %tmp2 = lshr i32 %x, 2
  %tmp3 = and i32 %tmp2, 3
  %tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3
  %tmp5 = load i32* %tmp4, align 4
  ret i32 %tmp5
}