llvm.org GIT mirror llvm / 482e4a8
FileCheck-ize a test, make it more specific to directly test the shift removal desired. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148213 91177308-0d34-0410-b5e6-96231b3b80d8 Chandler Carruth 8 years ago
1 changed file(s) with 14 addition(s) and 10 deletion(s). Raw diff Collapse all Expand all
None ; RUN: llc < %s | not grep shrl
0 ; RUN: llc -march=x86 < %s | FileCheck %s
11
2 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
3 target triple = "i686-apple-darwin8"
4 @array = weak global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1]
2 @array = weak global [4 x i32] zeroinitializer
53
6 define i32 @foo(i32 %x) {
4 define i32 @test_lshr_and(i32 %x) {
5 ; CHECK: test_lshr_and:
6 ; CHECK-NOT: shrl
7 ; CHECK: andl $12,
8 ; CHECK: movl array(%{{...}}),
9 ; CHECK: ret
10
711 entry:
8 %tmp2 = lshr i32 %x, 2 ; [#uses=1]
9 %tmp3 = and i32 %tmp2, 3 ; [#uses=1]
10 %tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3 ; [#uses=1]
11 %tmp5 = load i32* %tmp4, align 4 ; [#uses=1]
12 ret i32 %tmp5
12 %tmp2 = lshr i32 %x, 2
13 %tmp3 = and i32 %tmp2, 3
14 %tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3
15 %tmp5 = load i32* %tmp4, align 4
16 ret i32 %tmp5
1317 }
1418