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Imported Upstream version 5.18.0.246

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Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833
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Xamarin Public Jenkins (auto-signing)
2019-01-23 08:21:40 +00:00
parent a7724cd563
commit 279aa8f685
28482 changed files with 3866972 additions and 44 deletions
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35
external/llvm/test/Transforms/Reassociate/fast-multistep.ll vendored Normal file
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; RUN: opt < %s -reassociate -S | FileCheck %s
; Check that a*a*b+a*a*c is turned into a*(a*(b+c)).
define float @fmultistep1(float %a, float %b, float %c) {
; CHECK-LABEL: @fmultistep1(
; CHECK-NEXT: [[REASS_ADD1:%.*]] = fadd fast float %c, %b
; CHECK-NEXT: [[REASS_MUL2:%.*]] = fmul fast float %a, %a
; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast float [[REASS_MUL:%.*]]2, [[REASS_ADD1]]
; CHECK-NEXT: ret float [[REASS_MUL]]
;
%t0 = fmul fast float %a, %b
%t1 = fmul fast float %a, %t0 ; a*(a*b)
%t2 = fmul fast float %a, %c
%t3 = fmul fast float %a, %t2 ; a*(a*c)
%t4 = fadd fast float %t1, %t3
ret float %t4
}
; Check that a*b+a*c+d is turned into a*(b+c)+d.
define float @fmultistep2(float %a, float %b, float %c, float %d) {
; CHECK-LABEL: @fmultistep2(
; CHECK-NEXT: [[REASS_ADD:%.*]] = fadd fast float %c, %b
; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast float [[REASS_ADD]], %a
; CHECK-NEXT: [[T3:%.*]] = fadd fast float [[REASS_MUL]], %d
; CHECK-NEXT: ret float [[T3]]
;
%t0 = fmul fast float %a, %b
%t1 = fmul fast float %a, %c
%t2 = fadd fast float %t1, %d ; a*c+d
%t3 = fadd fast float %t0, %t2 ; a*b+(a*c+d)
ret float %t3
}