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b6ef1872d5
This patch adds ORE for MachinePipeliner, so that people can anaylyze their code using opt-viewer or other tools, then optimize the code to catch more piplining opportunities. Reviewed By: bcahoon Differential Revision: https://reviews.llvm.org/D79368
46 lines
2.6 KiB
LLVM
46 lines
2.6 KiB
LLVM
; RUN: llc < %s -ppc-vsr-nums-as-vr -mtriple=powerpc64-unknown-linux-gnu \
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; RUN: -verify-machineinstrs -ppc-asm-full-reg-names -mcpu=pwr9 --ppc-enable-pipeliner \
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; RUN: -pass-remarks-analysis=pipeliner -pass-remarks=pipeliner -o /dev/null 2>&1 \
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; RUN: | FileCheck %s
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@x = dso_local local_unnamed_addr global <{ i32, i32, i32, i32, [1020 x i32] }> <{ i32 1, i32 2, i32 3, i32 4, [1020 x i32] zeroinitializer }>, align 4
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@y = dso_local global [1024 x i32] zeroinitializer, align 4
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define dso_local i32* @foo() local_unnamed_addr {
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;CHECK: Schedule found with Initiation Interval
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;CHECK: Pipelined succesfully!
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entry:
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%.pre = load i32, i32* getelementptr inbounds ([1024 x i32], [1024 x i32]* @y, i64 0, i64 0), align 4
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br label %for.body
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for.cond.cleanup: ; preds = %for.body
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ret i32* getelementptr inbounds ([1024 x i32], [1024 x i32]* @y, i64 0, i64 0)
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for.body: ; preds = %for.body, %entry
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%0 = phi i32 [ %.pre, %entry ], [ %add.2, %for.body ]
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%indvars.iv = phi i64 [ 1, %entry ], [ %indvars.iv.next.2, %for.body ]
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%arrayidx2 = getelementptr inbounds [1024 x i32], [1024 x i32]* bitcast (<{ i32, i32, i32, i32, [1020 x i32] }>* @x to [1024 x i32]*), i64 0, i64 %indvars.iv
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%1 = load i32, i32* %arrayidx2, align 4
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%mul = mul nsw i32 %1, %1
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%add = add nsw i32 %mul, %0
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%arrayidx6 = getelementptr inbounds [1024 x i32], [1024 x i32]* @y, i64 0, i64 %indvars.iv
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store i32 %add, i32* %arrayidx6, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%arrayidx2.1 = getelementptr inbounds [1024 x i32], [1024 x i32]* bitcast (<{ i32, i32, i32, i32, [1020 x i32] }>* @x to [1024 x i32]*), i64 0, i64 %indvars.iv.next
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%2 = load i32, i32* %arrayidx2.1, align 4
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%mul.1 = mul nsw i32 %2, %2
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%add.1 = add nsw i32 %mul.1, %add
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%arrayidx6.1 = getelementptr inbounds [1024 x i32], [1024 x i32]* @y, i64 0, i64 %indvars.iv.next
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store i32 %add.1, i32* %arrayidx6.1, align 4
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%indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
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%arrayidx2.2 = getelementptr inbounds [1024 x i32], [1024 x i32]* bitcast (<{ i32, i32, i32, i32, [1020 x i32] }>* @x to [1024 x i32]*), i64 0, i64 %indvars.iv.next.1
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%3 = load i32, i32* %arrayidx2.2, align 4
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%mul.2 = mul nsw i32 %3, %3
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%add.2 = add nsw i32 %mul.2, %add.1
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%arrayidx6.2 = getelementptr inbounds [1024 x i32], [1024 x i32]* @y, i64 0, i64 %indvars.iv.next.1
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store i32 %add.2, i32* %arrayidx6.2, align 4
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%indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
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%exitcond.2 = icmp eq i64 %indvars.iv.next.2, 1024
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br i1 %exitcond.2, label %for.cond.cleanup, label %for.body
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}
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