xref: /llvm-project/llvm/test/CodeGen/DirectX/reversebits.ll (revision 011b618644113996e2c0a8e57db40f89d20878e3)
1c05e29bfSFarzon Lotfi; RUN: opt -S -scalarizer -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s
262d6bebaSHelena Kotas
362d6bebaSHelena Kotas; Make sure dxil operation function calls for reversebits are generated for all integer types.
462d6bebaSHelena Kotas
562d6bebaSHelena Kotas; Function Attrs: nounwind
662d6bebaSHelena Kotasdefine noundef i16 @test_bitreverse_short(i16 noundef %a) {
762d6bebaSHelena Kotasentry:
8*011b6186SFinn Plummer; CHECK:call i16 @dx.op.unary.i16(i32 30, i16 %{{.*}}) #[[#ATTR:]]
962d6bebaSHelena Kotas  %elt.bitreverse = call i16 @llvm.bitreverse.i16(i16 %a)
1062d6bebaSHelena Kotas  ret i16 %elt.bitreverse
1162d6bebaSHelena Kotas}
1262d6bebaSHelena Kotas
1362d6bebaSHelena Kotas; Function Attrs: nounwind
1462d6bebaSHelena Kotasdefine noundef i32 @test_bitreverse_int(i32 noundef %a) {
1562d6bebaSHelena Kotasentry:
16*011b6186SFinn Plummer; CHECK:call i32 @dx.op.unary.i32(i32 30, i32 %{{.*}}) #[[#ATTR]]
1762d6bebaSHelena Kotas  %elt.bitreverse = call i32 @llvm.bitreverse.i32(i32 %a)
1862d6bebaSHelena Kotas  ret i32 %elt.bitreverse
1962d6bebaSHelena Kotas}
2062d6bebaSHelena Kotas
2162d6bebaSHelena Kotas; Function Attrs: nounwind
2262d6bebaSHelena Kotasdefine noundef i64 @test_bitreverse_long(i64 noundef %a) {
2362d6bebaSHelena Kotasentry:
24*011b6186SFinn Plummer; CHECK:call i64 @dx.op.unary.i64(i32 30, i64 %{{.*}}) #[[#ATTR]]
2562d6bebaSHelena Kotas  %elt.bitreverse = call i64 @llvm.bitreverse.i64(i64 %a)
2662d6bebaSHelena Kotas  ret i64 %elt.bitreverse
2762d6bebaSHelena Kotas}
2862d6bebaSHelena Kotas
298ee685e6SFarzon Lotfidefine noundef <4 x i32> @bitreverse_int324(<4 x i32> noundef %a) #0 {
30c05e29bfSFarzon Lotfientry:
31c05e29bfSFarzon Lotfi  ; CHECK: [[ee0:%.*]] = extractelement <4 x i32> %a, i64 0
32*011b6186SFinn Plummer  ; CHECK: [[ie0:%.*]] = call i32 @dx.op.unary.i32(i32 30, i32 [[ee0]]) #[[#ATTR]]
33c05e29bfSFarzon Lotfi  ; CHECK: [[ee1:%.*]] = extractelement <4 x i32> %a, i64 1
34*011b6186SFinn Plummer  ; CHECK: [[ie1:%.*]] = call i32 @dx.op.unary.i32(i32 30, i32 [[ee1]]) #[[#ATTR]]
35c05e29bfSFarzon Lotfi  ; CHECK: [[ee2:%.*]] = extractelement <4 x i32> %a, i64 2
36*011b6186SFinn Plummer  ; CHECK: [[ie2:%.*]] = call i32 @dx.op.unary.i32(i32 30, i32 [[ee2]]) #[[#ATTR]]
37c05e29bfSFarzon Lotfi  ; CHECK: [[ee3:%.*]] = extractelement <4 x i32> %a, i64 3
38*011b6186SFinn Plummer  ; CHECK: [[ie3:%.*]] = call i32 @dx.op.unary.i32(i32 30, i32 [[ee3]]) #[[#ATTR]]
39c05e29bfSFarzon Lotfi  ; CHECK: insertelement <4 x i32> poison, i32 [[ie0]], i64 0
40c05e29bfSFarzon Lotfi  ; CHECK: insertelement <4 x i32> %{{.*}}, i32 [[ie1]], i64 1
41c05e29bfSFarzon Lotfi  ; CHECK: insertelement <4 x i32> %{{.*}}, i32 [[ie2]], i64 2
42c05e29bfSFarzon Lotfi  ; CHECK: insertelement <4 x i32> %{{.*}}, i32 [[ie3]], i64 3
43c05e29bfSFarzon Lotfi  %2 = call <4 x i32> @llvm.bitreverse.v4i32(<4 x i32> %a)
44c05e29bfSFarzon Lotfi  ret <4 x i32> %2
45c05e29bfSFarzon Lotfi}
46c05e29bfSFarzon Lotfi
47*011b6186SFinn Plummer; CHECK: attributes #[[#ATTR]] = {{{.*}} memory(none) {{.*}}}
48*011b6186SFinn Plummer
4962d6bebaSHelena Kotasdeclare i16 @llvm.bitreverse.i16(i16)
5062d6bebaSHelena Kotasdeclare i32 @llvm.bitreverse.i32(i32)
5162d6bebaSHelena Kotasdeclare i64 @llvm.bitreverse.i64(i64)
52c05e29bfSFarzon Lotfideclare <4 x i32> @llvm.bitreverse.v4i32(<4 x i32>)
53