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d42b05387d
Reenable post-legalize stores with constant merging computation and corresponding test case. * Properly truncate store merge constants * Disable merging of truncated stores floating points * Ensure merges of constant stores into a single vector are constructed from legal elements. Reviewers: eastig, efriedma Reviewed By: eastig Subscribers: spatel, rengolin, aemerson, javed.absar, kristof.beyls, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D40701 llvm-svn: 319899
47 lines
2.3 KiB
LLVM
47 lines
2.3 KiB
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -enable-misched=false < %s | FileCheck %s
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;target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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;target triple = "aarch64--linux-gnu"
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; CHECK-LABEL: test
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; CHECK: str x30, [sp, #-16]!
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; CHECK: adrp x8, q
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; CHECK: ldr x8, [x8, :lo12:q]
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; CHECK: stp xzr, xzr, [x8]
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; CHECK: bl f
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@q = external unnamed_addr global i16*, align 8
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; Function Attrs: nounwind
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define void @test() local_unnamed_addr #0 {
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entry:
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br label %for.body453.i
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for.body453.i: ; preds = %for.body453.i, %entry
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br i1 undef, label %for.body453.i, label %for.end705.i
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for.end705.i: ; preds = %for.body453.i
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%0 = load i16*, i16** @q, align 8
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%1 = getelementptr inbounds i16, i16* %0, i64 0
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%2 = bitcast i16* %1 to <2 x i16>*
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store <2 x i16> zeroinitializer, <2 x i16>* %2, align 2
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%3 = getelementptr i16, i16* %1, i64 2
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%4 = bitcast i16* %3 to <2 x i16>*
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store <2 x i16> zeroinitializer, <2 x i16>* %4, align 2
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%5 = getelementptr i16, i16* %1, i64 4
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%6 = bitcast i16* %5 to <2 x i16>*
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store <2 x i16> zeroinitializer, <2 x i16>* %6, align 2
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%7 = getelementptr i16, i16* %1, i64 6
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%8 = bitcast i16* %7 to <2 x i16>*
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store <2 x i16> zeroinitializer, <2 x i16>* %8, align 2
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call void @f() #2
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unreachable
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}
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declare void @f() local_unnamed_addr #1
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attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-jump-tables"="false" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-a57" "target-features"="+crc,+crypto,+fp-armv8,+neon" "unsafe-fp-math"="true" "use-soft-float"="false" }
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attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-a57" "target-features"="+crc,+crypto,+fp-armv8,+neon" "unsafe-fp-math"="true" "use-soft-float"="false" }
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attributes #2 = { nounwind }
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