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;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2021-2023 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; RUN: %opt %use_old_pass_manager% -cmabi -march=genx64 -mcpu=Gen9 -S < %s | FileCheck %s
target datalayout = "e-p:64:64-i64:64-n8:16:32"
@simple_global_int = internal global i32 42, align 4
@simple_const_float = internal constant float 4.200000e+01, align 4
@__imparg_llvm.vc.internal.print.buffer = internal global i64 undef
; COM: Fake functions to obtain implicit args inside extern/indirect functions.
; COM: In real case scenario there'll be some code in place of those functions,
; COM: e.g r0 -> and -> i2p -> gep -> load. But the code itself doesn't affect
; COM: global variable lowering flow.
declare <3 x i16> @get_loc_id()
declare <3 x i32> @get_loc_sz()
declare <3 x i32> @get_grp_cnt()
declare i64 @get_printf_ptr()
; Function Attrs: noinline nounwind
define internal spir_func float @bar() {
; CHECK: define internal spir_func { float, i32 } @bar(i32 %simple_global_int.in, float %simple_const_float.in) {
%simple_global_int.load = load i32, i32* @simple_global_int, align 4
%simple_global_int.inc = add nsw i32 %simple_global_int.load, 1
store i32 %simple_global_int.inc, i32* @simple_global_int, align 4
%simple_const_float.load = load float, float* @simple_const_float, align 4
%simple_const_float.inc = fadd float %simple_const_float.load, 1.000000e+00
ret float %simple_const_float.inc
; COM: no need to copy-out constant float
; CHECK: ret { float, i32 } %{{[^ ]+}}
}
; COM: function with taken address shouldn't change
define internal spir_func void @indirect() {
; CHECK: define internal spir_func void @indirect() {
%indirect.get.ptr = call i64 @get_printf_ptr()
store i64 %indirect.get.ptr, i64* @__imparg_llvm.vc.internal.print.buffer, align 8
%indirect.int.load = load i64, i64* @__imparg_llvm.vc.internal.print.buffer, align 8
; CHECK: %indirect.int.load = load i64, i64* %__imparg_llvm.vc.internal.print.buffer.local, align 8
ret void
}
; Function Attrs: noinline nounwind
define dllexport spir_kernel void @foo_kernel() {
; CHECK-LABEL: define dllexport spir_kernel void @foo_kernel() {
; CHECK: %simple_const_float.local = alloca float, align 4
; CHECK: store float 4.200000e+01, float* %simple_const_float.local
; CHECK: %simple_global_int.local = alloca i32, align 4
; CHECK: store i32 42, i32* %simple_global_int.local
%ret.val = call spir_func float @bar()
; COM: no need to store into a constant float
; CHECK-NOT: store float %{{[^ ]+}}, float* %simple_const_float.local
%just.use = fadd float %ret.val, 1.000000e+00
%indirect.user = ptrtoint void ()* @indirect to i32
ret void
}
!genx.kernels = !{!0}
!0 = !{void ()* @foo_kernel}
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