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llvm-project/llvm/test/Transforms/InstCombine/select_arithmetic.ll

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[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
; Tests folding constants from two similar selects that feed a add
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
define float @test1a(i1 zeroext %arg) #0 {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test1a(
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[ARG:%.*]], float 6.000000e+00, float 1.500000e+01
; CHECK-NEXT: ret float [[TMP2]]
;
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
%tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00
%tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00
%tmp2 = fadd float %tmp, %tmp1
ret float %tmp2
}
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
; Tests folding multiple expression constants from similar selects that feed a adds
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
define float @test1b(i1 zeroext %arg) #0 {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test1b(
; CHECK-NEXT: [[TMP5:%.*]] = select i1 [[ARG:%.*]], float 7.250000e+00, float 2.800000e+01
; CHECK-NEXT: ret float [[TMP5]]
;
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
%tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00
%tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00
%tmp2 = select i1 %arg, float 2.500000e-01, float 4.000000e+00
%tmp3 = fadd float %tmp, %tmp1
%tmp4 = fadd float %tmp2, %tmp1
%tmp5 = fadd float %tmp4, %tmp3
ret float %tmp5
}
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
; Tests folding constants from two similar selects that feed a sub
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
define float @test2(i1 zeroext %arg) #0 {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[ARG:%.*]], float 4.000000e+00, float -3.000000e+00
; CHECK-NEXT: ret float [[TMP2]]
;
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
%tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00
%tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00
%tmp2 = fsub float %tmp, %tmp1
ret float %tmp2
}
; Tests folding constants from two similar selects that feed a mul
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
define float @test3(i1 zeroext %arg) #0 {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[ARG:%.*]], float 5.000000e+00, float 5.400000e+01
; CHECK-NEXT: ret float [[TMP2]]
;
[InstCombine] Add select simplifications In these cases, two selects have constant selectable operands for both the true and false components and have the same conditional expression. We then create two arithmetic operations of the same type and feed a final select operation using the result of the true arithmetic for the true operand and the result of the false arithmetic for the false operand and reuse the original conditionl expression. The arithmetic operations are naturally folded as a consequence, leaving only the newly formed select to replace the old arithmetic operation. Patch by: Michael Berg <michael_c_berg@apple.com> Differential Revision: https://reviews.llvm.org/D37019 llvm-svn: 313774
2017-09-21 01:32:16 +08:00
%tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00
%tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00
%tmp2 = fmul float %tmp, %tmp1
ret float %tmp2
}
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
declare void @use_float(float)
; Tests folding constants if the selects have multiple uses but
; we can fold away the binary op with a select.
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
define float @test4(i1 zeroext %arg) #0 {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test4(
; CHECK-NEXT: [[TMP:%.*]] = select i1 [[ARG:%.*]], float 5.000000e+00, float 6.000000e+00
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[ARG]], float 5.000000e+00, float 5.400000e+01
; CHECK-NEXT: call void @use_float(float [[TMP]])
; CHECK-NEXT: ret float [[TMP2]]
;
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
%tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00
%tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00
%tmp2 = fmul float %tmp, %tmp1
call void @use_float(float %tmp)
ret float %tmp2
}
; Tests not folding constants if we cannot fold away any of the selects.
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
define float @test5(i1 zeroext %arg, float %div) {
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00
; CHECK-LABEL: @test5(
; CHECK-NEXT: [[TMP:%.*]] = select i1 [[ARG:%.*]], float [[DIV:%.*]], float 5.000000e+00
; CHECK-NEXT: [[MUL:%.*]] = fmul contract float [[TMP]], [[TMP]]
; CHECK-NEXT: call void @use_float(float [[TMP]])
; CHECK-NEXT: ret float [[MUL]]
;
[InstCombine] Gating select arithmetic optimization. These changes faciliate positive behavior for arithmetic based select expressions that match its translation criteria, keeping code size gated to neutral or improved scenarios. Patch by Michael Berg <michael_c_berg@apple.com>! Differential Revision: https://reviews.llvm.org/D38263 llvm-svn: 314320
2017-09-28 01:16:51 +08:00
%tmp = select i1 %arg, float %div, float 5.000000e+00
%mul = fmul contract float %tmp, %tmp
call void @use_float(float %tmp)
ret float %mul
}
[InstCombine] auto-generate complete checks; NFC llvm-svn: 326331
2018-03-01 00:53:45 +08:00