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https://github.com/c64scene-ar/llvm-6502.git
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c76bff0715
Up the phi node folding threshold from a cheap "1" to a meagre "2". Update tests for extra added selects and slight code churn. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229099 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
802 B
LLVM
33 lines
802 B
LLVM
; RUN: llc -O3 -mcpu=cortex-a57 < %s | FileCheck %s
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; CHECK-LABEL: @test
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; CHECK: and
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; CHECK: csel
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; CHECK: csel
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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target triple = "arm64--linux-gnueabi"
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define void @test(i64 %a, i64* %ptr1, i64* %ptr2) #0 align 2 {
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entry:
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%conv = and i64 %a, 4294967295
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%add = add nsw i64 %conv, -1
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%div = sdiv i64 %add, 64
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%rem = srem i64 %add, 64
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%cmp = icmp slt i64 %rem, 0
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br i1 %cmp, label %if.then, label %exit
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if.then:
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%add2 = add nsw i64 %rem, 64
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%add3 = add i64 %div, -1
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br label %exit
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exit:
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%__n = phi i64 [ %add3, %if.then ], [ %div, %entry ]
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%__n.0 = phi i64 [ %add2, %if.then ], [ %rem, %entry ]
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store i64 %__n, i64* %ptr1
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store i64 %__n.0, i64* %ptr2
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ret void
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}
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