mirror of
https://github.com/c64scene-ar/llvm-6502.git
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b664d47cb0
This implements a solution for constant initializers suggested by Vadim Girlin, where we store the data after the shader code and then use the S_GETPC instruction to compute its address. This saves use the trouble of creating a new buffer for constant data and then having to pass the pointer to the kernel via user SGPRs or the input buffer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213530 91177308-0d34-0410-b5e6-96231b3b80d8
79 lines
2.7 KiB
LLVM
79 lines
2.7 KiB
LLVM
; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
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; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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@b = internal addrspace(2) constant [1 x i16] [ i16 7 ], align 2
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@float_gv = internal unnamed_addr addrspace(2) constant [5 x float] [float 0.0, float 1.0, float 2.0, float 3.0, float 4.0], align 4
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; FUNC-LABEL: @float
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; FIXME: We should be using S_LOAD_DWORD here.
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; SI: BUFFER_LOAD_DWORD
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; EG-DAG: MOV {{\** *}}T2.X
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; EG-DAG: MOV {{\** *}}T3.X
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; EG-DAG: MOV {{\** *}}T4.X
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; EG-DAG: MOV {{\** *}}T5.X
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; EG-DAG: MOV {{\** *}}T6.X
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; EG: MOVA_INT
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define void @float(float addrspace(1)* %out, i32 %index) {
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entry:
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%0 = getelementptr inbounds [5 x float] addrspace(2)* @float_gv, i32 0, i32 %index
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%1 = load float addrspace(2)* %0
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store float %1, float addrspace(1)* %out
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ret void
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}
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@i32_gv = internal unnamed_addr addrspace(2) constant [5 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4], align 4
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; FUNC-LABEL: @i32
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; FIXME: We should be using S_LOAD_DWORD here.
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; SI: BUFFER_LOAD_DWORD
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; EG-DAG: MOV {{\** *}}T2.X
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; EG-DAG: MOV {{\** *}}T3.X
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; EG-DAG: MOV {{\** *}}T4.X
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; EG-DAG: MOV {{\** *}}T5.X
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; EG-DAG: MOV {{\** *}}T6.X
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; EG: MOVA_INT
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define void @i32(i32 addrspace(1)* %out, i32 %index) {
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entry:
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%0 = getelementptr inbounds [5 x i32] addrspace(2)* @i32_gv, i32 0, i32 %index
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%1 = load i32 addrspace(2)* %0
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store i32 %1, i32 addrspace(1)* %out
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ret void
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}
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%struct.foo = type { float, [5 x i32] }
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@struct_foo_gv = internal unnamed_addr addrspace(2) constant [1 x %struct.foo] [ %struct.foo { float 16.0, [5 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4] } ]
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; FUNC-LABEL: @struct_foo_gv_load
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; SI: S_LOAD_DWORD
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define void @struct_foo_gv_load(i32 addrspace(1)* %out, i32 %index) {
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%gep = getelementptr inbounds [1 x %struct.foo] addrspace(2)* @struct_foo_gv, i32 0, i32 0, i32 1, i32 %index
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%load = load i32 addrspace(2)* %gep, align 4
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store i32 %load, i32 addrspace(1)* %out, align 4
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ret void
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}
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@array_v1_gv = internal addrspace(2) constant [4 x <1 x i32>] [ <1 x i32> <i32 1>,
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<1 x i32> <i32 2>,
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<1 x i32> <i32 3>,
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<1 x i32> <i32 4> ]
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; FUNC-LABEL: @array_v1_gv_load
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; FIXME: We should be using S_LOAD_DWORD here.
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; SI: BUFFER_LOAD_DWORD
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define void @array_v1_gv_load(<1 x i32> addrspace(1)* %out, i32 %index) {
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%gep = getelementptr inbounds [4 x <1 x i32>] addrspace(2)* @array_v1_gv, i32 0, i32 %index
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%load = load <1 x i32> addrspace(2)* %gep, align 4
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store <1 x i32> %load, <1 x i32> addrspace(1)* %out, align 4
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ret void
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}
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