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llvm-mirror/test/CodeGen/R600/trunc.ll
Tom Stellard 342e72a308 R600/SI: Add a stub GCNTargetMachine
This is equivalent to the AMDGPUTargetMachine now, but it is the
starting point for separating R600 and GCN functionality into separate
targets.

It is recommened that users start using the gcn triple for GCN-based
GPUs, because using the r600 triple for these GPUs will be deprecated in
the future.

llvm-svn: 225277
2015-01-06 18:00:21 +00:00

68 lines
2.4 KiB
LLVM

; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI %s
; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck -check-prefix=EG %s
define void @trunc_i64_to_i32_store(i32 addrspace(1)* %out, i64 %in) {
; SI-LABEL: {{^}}trunc_i64_to_i32_store:
; SI: s_load_dword [[SLOAD:s[0-9]+]], s[0:1], 0xb
; SI: v_mov_b32_e32 [[VLOAD:v[0-9]+]], [[SLOAD]]
; SI: buffer_store_dword [[VLOAD]]
; EG-LABEL: {{^}}trunc_i64_to_i32_store:
; EG: MEM_RAT_CACHELESS STORE_RAW T0.X, T1.X, 1
; EG: LSHR
; EG-NEXT: 2(
%result = trunc i64 %in to i32 store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: {{^}}trunc_load_shl_i64:
; SI-DAG: s_load_dwordx2
; SI-DAG: s_load_dword [[SREG:s[0-9]+]],
; SI: s_lshl_b32 [[SHL:s[0-9]+]], [[SREG]], 2
; SI: v_mov_b32_e32 [[VSHL:v[0-9]+]], [[SHL]]
; SI: buffer_store_dword [[VSHL]],
define void @trunc_load_shl_i64(i32 addrspace(1)* %out, i64 %a) {
%b = shl i64 %a, 2
%result = trunc i64 %b to i32
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: {{^}}trunc_shl_i64:
; SI: s_load_dwordx2 s{{\[}}[[LO_SREG:[0-9]+]]:{{[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0xd
; SI: s_lshl_b64 s{{\[}}[[LO_SHL:[0-9]+]]:{{[0-9]+\]}}, s{{\[}}[[LO_SREG]]:{{[0-9]+\]}}, 2
; SI: s_add_u32 s[[LO_SREG2:[0-9]+]], s[[LO_SHL]],
; SI: s_addc_u32
; SI: v_mov_b32_e32 v[[LO_VREG:[0-9]+]], s[[LO_SREG2]]
; SI: buffer_store_dword v[[LO_VREG]],
define void @trunc_shl_i64(i64 addrspace(1)* %out2, i32 addrspace(1)* %out, i64 %a) {
%aa = add i64 %a, 234 ; Prevent shrinking store.
%b = shl i64 %aa, 2
%result = trunc i64 %b to i32
store i32 %result, i32 addrspace(1)* %out, align 4
store i64 %b, i64 addrspace(1)* %out2, align 8 ; Prevent reducing ops to 32-bits
ret void
}
; SI-LABEL: {{^}}trunc_i32_to_i1:
; SI: v_and_b32_e32 v{{[0-9]+}}, 1, v{{[0-9]+}}
; SI: v_cmp_eq_i32
define void @trunc_i32_to_i1(i32 addrspace(1)* %out, i32 addrspace(1)* %ptr) {
%a = load i32 addrspace(1)* %ptr, align 4
%trunc = trunc i32 %a to i1
%result = select i1 %trunc, i32 1, i32 0
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}
; SI-LABEL: {{^}}sgpr_trunc_i32_to_i1:
; SI: v_and_b32_e64 v{{[0-9]+}}, 1, s{{[0-9]+}}
; SI: v_cmp_eq_i32
define void @sgpr_trunc_i32_to_i1(i32 addrspace(1)* %out, i32 %a) {
%trunc = trunc i32 %a to i1
%result = select i1 %trunc, i32 1, i32 0
store i32 %result, i32 addrspace(1)* %out, align 4
ret void
}