1 ; RUN: opt -S -instcombine < %s | FileCheck %s
3 ; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL
4 ; CHECK: mul <4 x i32> %in, <i32 0, i32 -32, i32 0, i32 -32>
6 define <4 x i32> @test_FoldShiftByConstant_CreateSHL(<4 x i32> %in) {
7 %mul.i = mul <4 x i32> %in, <i32 0, i32 -1, i32 0, i32 -1>
8 %vshl_n = shl <4 x i32> %mul.i, <i32 5, i32 5, i32 5, i32 5>
12 ; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL2
13 ; CHECK: mul <8 x i16> %in, <i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32>
15 define <8 x i16> @test_FoldShiftByConstant_CreateSHL2(<8 x i16> %in) {
16 %mul.i = mul <8 x i16> %in, <i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1>
17 %vshl_n = shl <8 x i16> %mul.i, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
21 ; CHECK-LABEL: @test_FoldShiftByConstant_CreateAnd
22 ; CHECK: mul <16 x i8> %in0, <i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33>
23 ; CHECK-NEXT: and <16 x i8> %vsra_n2, <i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32>
25 define <16 x i8> @test_FoldShiftByConstant_CreateAnd(<16 x i8> %in0) {
26 %vsra_n = ashr <16 x i8> %in0, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
27 %tmp = add <16 x i8> %in0, %vsra_n
28 %vshl_n = shl <16 x i8> %tmp, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
33 define i32 @bar(i32 %x, i32 %y) {
40 define <2 x i32> @bar_v2i32(<2 x i32> %x, <2 x i32> %y) {
41 %a = lshr <2 x i32> %x, <i32 5, i32 5>
42 %b = add <2 x i32> %a, %y
43 %c = shl <2 x i32> %b, <i32 5, i32 5>
50 define i32 @foo(i32 %x, i32 %y) {
58 define <2 x i32> @foo_v2i32(<2 x i32> %x, <2 x i32> %y) {
59 %a = lshr <2 x i32> %x, <i32 4, i32 4>
60 %b = and <2 x i32> %a, <i32 8, i32 8>
61 %c = add <2 x i32> %b, %y
62 %d = shl <2 x i32> %c, <i32 4, i32 4>