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      1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
      2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
      3 
      4 declare i16 @llvm.bitreverse.i16(i16) #1
      5 declare i32 @llvm.bitreverse.i32(i32) #1
      6 declare i64 @llvm.bitreverse.i64(i64) #1
      7 
      8 declare <2 x i32> @llvm.bitreverse.v2i32(<2 x i32>) #1
      9 declare <4 x i32> @llvm.bitreverse.v4i32(<4 x i32>) #1
     10 
     11 declare <2 x i64> @llvm.bitreverse.v2i64(<2 x i64>) #1
     12 declare <4 x i64> @llvm.bitreverse.v4i64(<4 x i64>) #1
     13 
     14 declare i32 @llvm.AMDGPU.brev(i32) #1
     15 
     16 ; FUNC-LABEL: {{^}}s_brev_i16:
     17 ; SI: s_brev_b32
     18 define void @s_brev_i16(i16 addrspace(1)* noalias %out, i16 %val) #0 {
     19   %brev = call i16 @llvm.bitreverse.i16(i16 %val) #1
     20   store i16 %brev, i16 addrspace(1)* %out
     21   ret void
     22 }
     23 
     24 ; FUNC-LABEL: {{^}}v_brev_i16:
     25 ; SI: v_bfrev_b32_e32
     26 define void @v_brev_i16(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %valptr) #0 {
     27   %val = load i16, i16 addrspace(1)* %valptr
     28   %brev = call i16 @llvm.bitreverse.i16(i16 %val) #1
     29   store i16 %brev, i16 addrspace(1)* %out
     30   ret void
     31 }
     32 
     33 ; FUNC-LABEL: {{^}}s_brev_i32:
     34 ; SI: s_load_dword [[VAL:s[0-9]+]],
     35 ; SI: s_brev_b32 [[SRESULT:s[0-9]+]], [[VAL]]
     36 ; SI: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]]
     37 ; SI: buffer_store_dword [[VRESULT]],
     38 ; SI: s_endpgm
     39 define void @s_brev_i32(i32 addrspace(1)* noalias %out, i32 %val) #0 {
     40   %brev = call i32 @llvm.bitreverse.i32(i32 %val) #1
     41   store i32 %brev, i32 addrspace(1)* %out
     42   ret void
     43 }
     44 
     45 ; FUNC-LABEL: {{^}}v_brev_i32:
     46 ; SI: buffer_load_dword [[VAL:v[0-9]+]],
     47 ; SI: v_bfrev_b32_e32 [[RESULT:v[0-9]+]], [[VAL]]
     48 ; SI: buffer_store_dword [[RESULT]],
     49 ; SI: s_endpgm
     50 define void @v_brev_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) #0 {
     51   %val = load i32, i32 addrspace(1)* %valptr
     52   %brev = call i32 @llvm.bitreverse.i32(i32 %val) #1
     53   store i32 %brev, i32 addrspace(1)* %out
     54   ret void
     55 }
     56 
     57 ; FUNC-LABEL: {{^}}s_brev_v2i32:
     58 ; SI: s_brev_b32
     59 ; SI: s_brev_b32
     60 define void @s_brev_v2i32(<2 x i32> addrspace(1)* noalias %out, <2 x i32> %val) #0 {
     61   %brev = call <2 x i32> @llvm.bitreverse.v2i32(<2 x i32> %val) #1
     62   store <2 x i32> %brev, <2 x i32> addrspace(1)* %out
     63   ret void
     64 }
     65 
     66 ; FUNC-LABEL: {{^}}v_brev_v2i32:
     67 ; SI: v_bfrev_b32_e32
     68 ; SI: v_bfrev_b32_e32
     69 define void @v_brev_v2i32(<2 x i32> addrspace(1)* noalias %out, <2 x i32> addrspace(1)* noalias %valptr) #0 {
     70   %val = load <2 x i32>, <2 x i32> addrspace(1)* %valptr
     71   %brev = call <2 x i32> @llvm.bitreverse.v2i32(<2 x i32> %val) #1
     72   store <2 x i32> %brev, <2 x i32> addrspace(1)* %out
     73   ret void
     74 }
     75 
     76 ; FUNC-LABEL: {{^}}s_brev_i64:
     77 define void @s_brev_i64(i64 addrspace(1)* noalias %out, i64 %val) #0 {
     78   %brev = call i64 @llvm.bitreverse.i64(i64 %val) #1
     79   store i64 %brev, i64 addrspace(1)* %out
     80   ret void
     81 }
     82 
     83 ; FUNC-LABEL: {{^}}v_brev_i64:
     84 define void @v_brev_i64(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %valptr) #0 {
     85   %val = load i64, i64 addrspace(1)* %valptr
     86   %brev = call i64 @llvm.bitreverse.i64(i64 %val) #1
     87   store i64 %brev, i64 addrspace(1)* %out
     88   ret void
     89 }
     90 
     91 ; FUNC-LABEL: {{^}}s_brev_v2i64:
     92 define void @s_brev_v2i64(<2 x i64> addrspace(1)* noalias %out, <2 x i64> %val) #0 {
     93   %brev = call <2 x i64> @llvm.bitreverse.v2i64(<2 x i64> %val) #1
     94   store <2 x i64> %brev, <2 x i64> addrspace(1)* %out
     95   ret void
     96 }
     97 
     98 ; FUNC-LABEL: {{^}}v_brev_v2i64:
     99 define void @v_brev_v2i64(<2 x i64> addrspace(1)* noalias %out, <2 x i64> addrspace(1)* noalias %valptr) #0 {
    100   %val = load <2 x i64>, <2 x i64> addrspace(1)* %valptr
    101   %brev = call <2 x i64> @llvm.bitreverse.v2i64(<2 x i64> %val) #1
    102   store <2 x i64> %brev, <2 x i64> addrspace(1)* %out
    103   ret void
    104 }
    105 
    106 ; FUNC-LABEL: {{^}}legacy_s_brev_i32:
    107 ; SI: s_brev_b32
    108 define void @legacy_s_brev_i32(i32 addrspace(1)* noalias %out, i32 %val) nounwind {
    109   %brev = call i32 @llvm.AMDGPU.brev(i32 %val) #1
    110   store i32 %brev, i32 addrspace(1)* %out
    111   ret void
    112 }
    113 
    114 attributes #0 = { nounwind }
    115 attributes #1 = { nounwind readnone }
    116