185 lines
6.7 KiB
LLVM
185 lines
6.7 KiB
LLVM
; RUN: llc -O0 -march=amdgcn -mcpu=bonaire -mattr=-promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NO-PROMOTE %s
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; RUN: llc -O0 -march=amdgcn -mcpu=bonaire -mattr=+promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-PROMOTE %s
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; RUN: llc -O0 -march=amdgcn -mcpu=tonga -mattr=-promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-NO-PROMOTE %s
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; RUN: llc -O0 -march=amdgcn -mcpu=tonga -mattr=+promote-alloca < %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-PROMOTE %s
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; Disable optimizations in case there are optimizations added that
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; specialize away generic pointer accesses.
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; CHECK-LABEL: {{^}}branch_use_flat_i32:
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; CHECK: flat_store_dword {{v[0-9]+}}, {{v\[[0-9]+:[0-9]+\]}}
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; CHECK: s_endpgm
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define void @branch_use_flat_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* %gptr, i32 addrspace(3)* %lptr, i32 %x, i32 %c) #0 {
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entry:
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%cmp = icmp ne i32 %c, 0
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br i1 %cmp, label %local, label %global
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local:
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%flat_local = addrspacecast i32 addrspace(3)* %lptr to i32 addrspace(4)*
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br label %end
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global:
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%flat_global = addrspacecast i32 addrspace(1)* %gptr to i32 addrspace(4)*
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br label %end
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end:
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%fptr = phi i32 addrspace(4)* [ %flat_local, %local ], [ %flat_global, %global ]
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store i32 %x, i32 addrspace(4)* %fptr, align 4
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; %val = load i32, i32 addrspace(4)* %fptr, align 4
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; store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; These testcases might become useless when there are optimizations to
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; remove generic pointers.
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; CHECK-LABEL: {{^}}store_flat_i32:
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; CHECK: v_mov_b32_e32 v[[DATA:[0-9]+]], {{s[0-9]+}}
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; CHECK: v_mov_b32_e32 v[[LO_VREG:[0-9]+]], {{s[0-9]+}}
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; CHECK: v_mov_b32_e32 v[[HI_VREG:[0-9]+]], {{s[0-9]+}}
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; CHECK: flat_store_dword v[[DATA]], v{{\[}}[[LO_VREG]]:[[HI_VREG]]{{\]}}
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define void @store_flat_i32(i32 addrspace(1)* %gptr, i32 %x) #0 {
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%fptr = addrspacecast i32 addrspace(1)* %gptr to i32 addrspace(4)*
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store i32 %x, i32 addrspace(4)* %fptr, align 4
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ret void
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}
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; CHECK-LABEL: {{^}}store_flat_i64:
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; CHECK: flat_store_dwordx2
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define void @store_flat_i64(i64 addrspace(1)* %gptr, i64 %x) #0 {
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%fptr = addrspacecast i64 addrspace(1)* %gptr to i64 addrspace(4)*
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store i64 %x, i64 addrspace(4)* %fptr, align 8
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ret void
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}
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; CHECK-LABEL: {{^}}store_flat_v4i32:
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; CHECK: flat_store_dwordx4
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define void @store_flat_v4i32(<4 x i32> addrspace(1)* %gptr, <4 x i32> %x) #0 {
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%fptr = addrspacecast <4 x i32> addrspace(1)* %gptr to <4 x i32> addrspace(4)*
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store <4 x i32> %x, <4 x i32> addrspace(4)* %fptr, align 16
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ret void
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}
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; CHECK-LABEL: {{^}}store_flat_trunc_i16:
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; CHECK: flat_store_short
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define void @store_flat_trunc_i16(i16 addrspace(1)* %gptr, i32 %x) #0 {
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%fptr = addrspacecast i16 addrspace(1)* %gptr to i16 addrspace(4)*
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%y = trunc i32 %x to i16
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store i16 %y, i16 addrspace(4)* %fptr, align 2
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ret void
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}
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; CHECK-LABEL: {{^}}store_flat_trunc_i8:
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; CHECK: flat_store_byte
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define void @store_flat_trunc_i8(i8 addrspace(1)* %gptr, i32 %x) #0 {
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%fptr = addrspacecast i8 addrspace(1)* %gptr to i8 addrspace(4)*
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%y = trunc i32 %x to i8
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store i8 %y, i8 addrspace(4)* %fptr, align 2
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ret void
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}
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; CHECK-LABEL: load_flat_i32:
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; CHECK: flat_load_dword
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define void @load_flat_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i32 addrspace(1)* %gptr to i32 addrspace(4)*
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%fload = load i32, i32 addrspace(4)* %fptr, align 4
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store i32 %fload, i32 addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: load_flat_i64:
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; CHECK: flat_load_dwordx2
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define void @load_flat_i64(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i64 addrspace(1)* %gptr to i64 addrspace(4)*
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%fload = load i64, i64 addrspace(4)* %fptr, align 4
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store i64 %fload, i64 addrspace(1)* %out, align 8
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ret void
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}
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; CHECK-LABEL: load_flat_v4i32:
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; CHECK: flat_load_dwordx4
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define void @load_flat_v4i32(<4 x i32> addrspace(1)* noalias %out, <4 x i32> addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast <4 x i32> addrspace(1)* %gptr to <4 x i32> addrspace(4)*
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%fload = load <4 x i32>, <4 x i32> addrspace(4)* %fptr, align 4
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store <4 x i32> %fload, <4 x i32> addrspace(1)* %out, align 8
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ret void
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}
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; CHECK-LABEL: sextload_flat_i8:
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; CHECK: flat_load_sbyte
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define void @sextload_flat_i8(i32 addrspace(1)* noalias %out, i8 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i8 addrspace(1)* %gptr to i8 addrspace(4)*
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%fload = load i8, i8 addrspace(4)* %fptr, align 4
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%ext = sext i8 %fload to i32
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store i32 %ext, i32 addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: zextload_flat_i8:
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; CHECK: flat_load_ubyte
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define void @zextload_flat_i8(i32 addrspace(1)* noalias %out, i8 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i8 addrspace(1)* %gptr to i8 addrspace(4)*
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%fload = load i8, i8 addrspace(4)* %fptr, align 4
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%ext = zext i8 %fload to i32
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store i32 %ext, i32 addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: sextload_flat_i16:
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; CHECK: flat_load_sshort
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define void @sextload_flat_i16(i32 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i16 addrspace(1)* %gptr to i16 addrspace(4)*
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%fload = load i16, i16 addrspace(4)* %fptr, align 4
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%ext = sext i16 %fload to i32
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store i32 %ext, i32 addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: zextload_flat_i16:
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; CHECK: flat_load_ushort
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define void @zextload_flat_i16(i32 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %gptr) #0 {
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%fptr = addrspacecast i16 addrspace(1)* %gptr to i16 addrspace(4)*
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%fload = load i16, i16 addrspace(4)* %fptr, align 4
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%ext = zext i16 %fload to i32
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store i32 %ext, i32 addrspace(1)* %out, align 4
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ret void
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}
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; TODO: This should not be zero when registers are used for small
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; scratch allocations again.
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; Check for prologue initializing special SGPRs pointing to scratch.
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; CHECK-LABEL: {{^}}store_flat_scratch:
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; CHECK: s_movk_i32 flat_scratch_lo, 0
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; CHECK-NO-PROMOTE: s_movk_i32 flat_scratch_hi, 0x28{{$}}
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; CHECK-PROMOTE: s_movk_i32 flat_scratch_hi, 0x0{{$}}
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; CHECK: flat_store_dword
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; CHECK: s_barrier
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; CHECK: flat_load_dword
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define void @store_flat_scratch(i32 addrspace(1)* noalias %out, i32) #0 {
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%alloca = alloca i32, i32 9, align 4
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%x = call i32 @llvm.r600.read.tidig.x() #3
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%pptr = getelementptr i32, i32* %alloca, i32 %x
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%fptr = addrspacecast i32* %pptr to i32 addrspace(4)*
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store i32 %x, i32 addrspace(4)* %fptr
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; Dummy call
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call void @llvm.AMDGPU.barrier.local() #1
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%reload = load i32, i32 addrspace(4)* %fptr, align 4
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store i32 %reload, i32 addrspace(1)* %out, align 4
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ret void
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}
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declare void @llvm.AMDGPU.barrier.local() #1
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declare i32 @llvm.r600.read.tidig.x() #3
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attributes #0 = { nounwind }
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attributes #1 = { nounwind noduplicate }
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attributes #3 = { nounwind readnone }
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