llvm.amdgcn.mbcnt.ll
1.56 KB
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; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
; GCN-LABEL: {{^}}mbcnt_intrinsics:
; GCN: v_mbcnt_lo_u32_b32{{(_e64)*}} [[LO:v[0-9]+]], -1, 0
; SI: v_mbcnt_hi_u32_b32_e32 {{v[0-9]+}}, -1, [[LO]]
; VI: v_mbcnt_hi_u32_b32 {{v[0-9]+}}, -1, [[LO]]
define amdgpu_ps void @mbcnt_intrinsics(<16 x i8> addrspace(4)* inreg %arg, <16 x i8> addrspace(4)* inreg %arg1, <32 x i8> addrspace(4)* inreg %arg2, i32 inreg %arg3) {
main_body:
%lo = call i32 @llvm.amdgcn.mbcnt.lo(i32 -1, i32 0) #0
%hi = call i32 @llvm.amdgcn.mbcnt.hi(i32 -1, i32 %lo) #0
%tmp = bitcast i32 %hi to float
call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %tmp, float %tmp, float %tmp, float %tmp, i1 true, i1 true) #1
ret void
}
; GCN-LABEL: {{^}}mbcnt_lo_known_bits:
; GCN: v_mbcnt_lo_u32_b32
; GCN-NOT: and
define i32 @mbcnt_lo_known_bits(i32 %x, i32 %y) #0 {
%lo = call i32 @llvm.amdgcn.mbcnt.lo(i32 %x, i32 %y)
%mask = and i32 %lo, 63
ret i32 %mask
}
; GCN-LABEL: {{^}}mbcnt_hi_known_bits:
; GCN: v_mbcnt_hi_u32_b32
; GCN-NOT: and
define i32 @mbcnt_hi_known_bits(i32 %x, i32 %y) #0 {
%hi = call i32 @llvm.amdgcn.mbcnt.hi(i32 %x, i32 %y)
%mask = and i32 %hi, 63
ret i32 %mask
}
declare i32 @llvm.amdgcn.mbcnt.lo(i32, i32) #0
declare i32 @llvm.amdgcn.mbcnt.hi(i32, i32) #0
declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1) #1
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }