llvm-6502/test/CodeGen/X86/shift-combine.ll

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; RUN: llc -march=x86 < %s | FileCheck %s
@array = weak global [4 x i32] zeroinitializer
define i32 @test_lshr_and(i32 %x) {
; CHECK: 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
}