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;=========================== begin_copyright_notice ============================
;
; Copyright (C) 2022 Intel Corporation
;
; SPDX-License-Identifier: MIT
;
;============================ end_copyright_notice =============================
; RUN: igc_opt -igc-custom-unsafe-opt-pass -S %s -o %t.ll
; RUN: FileCheck %s --input-file=%t.ll
; tests CustomUnsafeOptPass::visitBinaryOperatorDivDivOp
; 1 / (1 / x) = x
define float @test1(float %x) #0 {
entry:
%0 = fdiv float 1.000000e+00, %x
%1 = fdiv float 1.000000e+00, %0
ret float %1
}
; CHECK-LABEL: define float @test1
; CHECK-NOT: fdiv
; CHECK: ret float %x
; 4 / (1 / x) = 4 * x
define float @test2(float %x) #0 {
entry:
%0 = fdiv float 1.000000e+00, %x
%1 = fdiv float 4.000000e+00, %0
ret float %1
}
; CHECK-LABEL: define float @test2
; CHECK-NOT: fdiv
; CHECK: %0 = fmul float 4.000000e+00, %x
; CHECK: ret float %0
!IGCMetadata = !{!0}
!0 = !{!"ModuleMD", !1}
!1 = !{!"compOpt", !2}
!2 = !{!"FastRelaxedMath", i1 true}
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