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;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2022-2024 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; REQUIRES: llvm-14-plus
; RUN: igc_opt --opaque-pointers -igc-custom-unsafe-opt-pass -S %s -o %t.ll
; RUN: FileCheck %s --input-file=%t.ll
; tests CustomUnsafeOptPass::visitExchangeCB
; (x * cb1) + (x * cb2) = x * (cb1 + cb2)
; where "cb" is load from constant buffer
define float @test1(float %x, ptr addrspace(65536) %cb1, ptr addrspace(65536) %cb2) #0 {
entry:
%0 = load float, ptr addrspace(65536) %cb1
%1 = fmul float %x, %0
%2 = load float, ptr addrspace(65536) %cb2
%3 = fmul float %x, %2
%4 = fadd float %1, %3
ret float %4
}
; CHECK-LABEL: define float @test1
; CHECK: [[CB1:%[A-z0-9]*]] = load float, ptr addrspace(65536) %cb1
; CHECK-NOT: fmul float %x, [[CB1]]
; CHECK: [[CB2:%[A-z0-9]*]] = load float, ptr addrspace(65536) %cb2
; CHECK-NOT: fmul float %x, [[CB2]]
; CHECK: [[ADD:%[A-z0-9]*]] = fadd float [[CB1]], [[CB2]]
; CHECK: [[MUL:%[A-z0-9]*]] = fmul float %x, [[ADD]]
; CHECK: ret float [[MUL]]
!IGCMetadata = !{!0}
!0 = !{!"ModuleMD", !1}
!1 = !{!"compOpt", !2}
!2 = !{!"FastRelaxedMath", i1 true}
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