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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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41
external/llvm/test/Transforms/IndVarSimplify/ult-sub-to-eq.ll vendored Normal file
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; RUN: opt -S -indvars < %s | FileCheck %s
; Provide legal integer types.
target datalayout = "n8:16:32:64"
define void @test1(float* nocapture %autoc, float* nocapture %data, float %d, i32 %data_len, i32 %sample) nounwind {
entry:
%sub = sub i32 %data_len, %sample
%cmp4 = icmp eq i32 %data_len, %sample
br i1 %cmp4, label %for.end, label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
%0 = trunc i64 %indvars.iv to i32
%add = add i32 %0, %sample
%idxprom = zext i32 %add to i64
%arrayidx = getelementptr inbounds float, float* %data, i64 %idxprom
%1 = load float, float* %arrayidx, align 4
%mul = fmul float %1, %d
%arrayidx2 = getelementptr inbounds float, float* %autoc, i64 %indvars.iv
%2 = load float, float* %arrayidx2, align 4
%add3 = fadd float %2, %mul
store float %add3, float* %arrayidx2, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%3 = trunc i64 %indvars.iv.next to i32
%cmp = icmp ult i32 %3, %sub
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
; CHECK-LABEL: @test1(
; check that we turn the IV test into an eq.
; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
; CHECK: %wide.trip.count = zext i32 %sub to i64
; CHECK: %exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count
; CHECK: br i1 %exitcond, label %for.body, label %for.end.loopexit
}