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R600/SI: Add support for 64-bit LDS loads.

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v2:
  -Use correct opcode for DS_READ_64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204273 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2014-03-19 22:19:52 +00:00
parent 6eaa49233f
commit 62b3e22092
2 changed files with 85 additions and 0 deletions
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2
lib/Target/R600/SIInstructions.td
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@ -413,6 +413,7 @@ def DS_READ_I8 : DS_Load_Helper <0x00000039, "DS_READ_I8", VReg_32>;
def DS_READ_U8 : DS_Load_Helper <0x0000003a, "DS_READ_U8", VReg_32>;
def DS_READ_I16 : DS_Load_Helper <0x0000003b, "DS_READ_I16", VReg_32>;
def DS_READ_U16 : DS_Load_Helper <0x0000003c, "DS_READ_U16", VReg_32>;
def DS_READ_B64 : DS_Load_Helper <0x00000076, "DS_READ_B64", VReg_64>;
//def BUFFER_LOAD_FORMAT_X : MUBUF_ <0x00000000, "BUFFER_LOAD_FORMAT_X", []>;
//def BUFFER_LOAD_FORMAT_XY : MUBUF_ <0x00000001, "BUFFER_LOAD_FORMAT_XY", []>;
@ -1932,6 +1933,7 @@ defm : DSReadPat <DS_READ_U8, i32, az_extloadi8_local>;
defm : DSReadPat <DS_READ_I16, i32, sextloadi16_local>;
defm : DSReadPat <DS_READ_U16, i32, az_extloadi16_local>;
defm : DSReadPat <DS_READ_B32, i32, local_load>;
defm : DSReadPat <DS_READ_B64, i64, local_load>;
multiclass DSWritePat <DS inst, ValueType vt, PatFrag frag> {
def : Pat <

83
test/CodeGen/R600/local-64.ll Normal file
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@ -0,0 +1,83 @@
; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI %s
; SI-LABEL: @local_i32_load
; SI: DS_READ_B32 [[REG:v[0-9]+]], v{{[0-9]+}}, 28, [M0]
; SI: BUFFER_STORE_DWORD [[REG]],
define void @local_i32_load(i32 addrspace(1)* %out, i32 addrspace(3)* %in) nounwind {
%gep = getelementptr i32 addrspace(3)* %in, i32 7
%val = load i32 addrspace(3)* %gep, align 4
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: @local_i32_load_0_offset
; SI: DS_READ_B32 [[REG:v[0-9]+]], v{{[0-9]+}}, 0, [M0]
; SI: BUFFER_STORE_DWORD [[REG]],
define void @local_i32_load_0_offset(i32 addrspace(1)* %out, i32 addrspace(3)* %in) nounwind {
%val = load i32 addrspace(3)* %in, align 4
store i32 %val, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: @local_i8_load_i16_max_offset
; SI-NOT: ADD
; SI: DS_READ_U8 [[REG:v[0-9]+]], {{v[0-9]+}}, -1, [M0]
; SI: BUFFER_STORE_BYTE [[REG]],
define void @local_i8_load_i16_max_offset(i8 addrspace(1)* %out, i8 addrspace(3)* %in) nounwind {
%gep = getelementptr i8 addrspace(3)* %in, i32 65535
%val = load i8 addrspace(3)* %gep, align 4
store i8 %val, i8 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: @local_i8_load_over_i16_max_offset
; SI: S_ADD_I32 [[ADDR:s[0-9]+]], s{{[0-9]+}}, 65536
; SI: V_MOV_B32_e32 [[VREGADDR:v[0-9]+]], [[ADDR]]
; SI: DS_READ_U8 [[REG:v[0-9]+]], [[VREGADDR]], 0, [M0]
; SI: BUFFER_STORE_BYTE [[REG]],
define void @local_i8_load_over_i16_max_offset(i8 addrspace(1)* %out, i8 addrspace(3)* %in) nounwind {
%gep = getelementptr i8 addrspace(3)* %in, i32 65536
%val = load i8 addrspace(3)* %gep, align 4
store i8 %val, i8 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: @local_i64_load
; SI-NOT: ADD
; SI: DS_READ_B64 [[REG:v[[0-9]+:[0-9]+]]], v{{[0-9]+}}, 56, [M0]
; SI: BUFFER_STORE_DWORDX2 [[REG]],
define void @local_i64_load(i64 addrspace(1)* %out, i64 addrspace(3)* %in) nounwind {
%gep = getelementptr i64 addrspace(3)* %in, i32 7
%val = load i64 addrspace(3)* %gep, align 8
store i64 %val, i64 addrspace(1)* %out, align 8
ret void
}
; SI-LABEL: @local_i64_load_0_offset
; SI: DS_READ_B64 [[REG:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}, 0, [M0]
; SI: BUFFER_STORE_DWORDX2 [[REG]],
define void @local_i64_load_0_offset(i64 addrspace(1)* %out, i64 addrspace(3)* %in) nounwind {
%val = load i64 addrspace(3)* %in, align 8
store i64 %val, i64 addrspace(1)* %out, align 8
ret void
}
; SI-LABEL: @local_f64_load
; SI-NOT: ADD
; SI: DS_READ_B64 [[REG:v[[0-9]+:[0-9]+]]], v{{[0-9]+}}, 56, [M0]
; SI: BUFFER_STORE_DWORDX2 [[REG]],
define void @local_f64_load(double addrspace(1)* %out, double addrspace(3)* %in) nounwind {
%gep = getelementptr double addrspace(3)* %in, i32 7
%val = load double addrspace(3)* %gep, align 8
store double %val, double addrspace(1)* %out, align 8
ret void
}
; SI-LABEL: @local_f64_load_0_offset
; SI: DS_READ_B64 [[REG:v\[[0-9]+:[0-9]+\]]], v{{[0-9]+}}, 0, [M0]
; SI: BUFFER_STORE_DWORDX2 [[REG]],
define void @local_f64_load_0_offset(double addrspace(1)* %out, double addrspace(3)* %in) nounwind {
%val = load double addrspace(3)* %in, align 8
store double %val, double addrspace(1)* %out, align 8
ret void
}