mirror of
https://github.com/RPCS3/llvm.git
synced 2026-08-27 02:51:23 -04:00
Lawrence Hu
08074bbc31
This patch extend loopreroll to allow the instruction chain
of loop control only IV has sext.
Differential Revision: http://reviews.llvm.org/D19820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269121 91177308-0d34-0410-b5e6-96231b3b80d8
187 lines
7.8 KiB
LLVM
187 lines
7.8 KiB
LLVM
; RUN: opt -S -loop-reroll %s | FileCheck %s
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target triple = "aarch64--linux-gnu"
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define void @test(i32 %n, float* %arrayidx200, float* %arrayidx164, float* %arrayidx172) {
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entry:
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%rem.i = srem i32 %n, 4
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%t22 = load float, float* %arrayidx172, align 4
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%cmp.9 = icmp eq i32 %n, 0
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%t7 = sext i32 %n to i64
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br i1 %cmp.9, label %while.end, label %while.body.preheader
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while.body.preheader:
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br label %while.body
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while.body:
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;CHECK-LABEL: while.body:
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;CHECK-NEXT: %indvars.iv.i423 = phi i64 [ %indvars.iv.next.i424, %while.body ], [ 0, %while.body.preheader ]
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;CHECK-NEXT: [[T1:%[0-9]+]] = trunc i64 %indvars.iv.i423 to i32
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;CHECK-NEXT: %arrayidx62.i = getelementptr inbounds float, float* %arrayidx200, i64 %indvars.iv.i423
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;CHECK-NEXT: %t1 = load float, float* %arrayidx62.i, align 4
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;CHECK-NEXT: %arrayidx64.i = getelementptr inbounds float, float* %arrayidx164, i64 %indvars.iv.i423
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;CHECK-NEXT: %t2 = load float, float* %arrayidx64.i, align 4
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;CHECK-NEXT: %mul65.i = fmul fast float %t2, %t22
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;CHECK-NEXT: %add66.i = fadd fast float %mul65.i, %t1
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;CHECK-NEXT: store float %add66.i, float* %arrayidx62.i, align 4
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;CHECK-NEXT: %indvars.iv.next.i424 = add i64 %indvars.iv.i423, 1
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;CHECK-NEXT: [[T2:%[0-9]+]] = sext i32 [[T1]] to i64
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;CHECK-NEXT: %exitcond = icmp eq i64 [[T2]], %{{[0-9]+}}
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;CHECK-NEXT: br i1 %exitcond, label %while.end.loopexit, label %while.body
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%indvars.iv.i423 = phi i64 [ %indvars.iv.next.i424, %while.body ], [ 0, %while.body.preheader ]
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%i.22.i = phi i32 [ %add103.i, %while.body ], [ %rem.i, %while.body.preheader ]
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%arrayidx62.i = getelementptr inbounds float, float* %arrayidx200, i64 %indvars.iv.i423
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%t1 = load float, float* %arrayidx62.i, align 4
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%arrayidx64.i = getelementptr inbounds float, float* %arrayidx164, i64 %indvars.iv.i423
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%t2 = load float, float* %arrayidx64.i, align 4
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%mul65.i = fmul fast float %t2, %t22
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%add66.i = fadd fast float %mul65.i, %t1
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store float %add66.i, float* %arrayidx62.i, align 4
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%t3 = add nsw i64 %indvars.iv.i423, 1
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%arrayidx71.i = getelementptr inbounds float, float* %arrayidx200, i64 %t3
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%t4 = load float, float* %arrayidx71.i, align 4
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%arrayidx74.i = getelementptr inbounds float, float* %arrayidx164, i64 %t3
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%t5 = load float, float* %arrayidx74.i, align 4
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%mul75.i = fmul fast float %t5, %t22
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%add76.i = fadd fast float %mul75.i, %t4
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store float %add76.i, float* %arrayidx71.i, align 4
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%add103.i = add nsw i32 %i.22.i, 2
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%t6 = sext i32 %add103.i to i64
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%cmp58.i = icmp slt i64 %t6, %t7
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%indvars.iv.next.i424 = add i64 %indvars.iv.i423, 2
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br i1 %cmp58.i, label %while.body, label %while.end.loopexit
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while.end.loopexit:
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br label %while.end
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while.end:
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ret void
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}
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; Function Attrs: noinline norecurse nounwind
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define i32 @test2(i64 %n, i32* nocapture %x, i32* nocapture readonly %y) {
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entry:
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%cmp18 = icmp sgt i64 %n, 0
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br i1 %cmp18, label %for.body.preheader, label %for.end
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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;CHECK: for.body:
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;CHECK-NEXT: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %for.body.preheader ]
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;CHECK-NEXT: %arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvar
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;CHECK-NEXT: [[T1:%[0-9]+]] = load i32, i32* %arrayidx, align 4
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;CHECK-NEXT: %arrayidx3 = getelementptr inbounds i32, i32* %x, i64 %indvar
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;CHECK-NEXT: store i32 [[T1]], i32* %arrayidx3, align 4
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;CHECK-NEXT: %indvar.next = add i64 %indvar, 1
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;CHECK-NEXT: %exitcond = icmp eq i64 %indvar, %{{[0-9]+}}
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;CHECK-NEXT: br i1 %exitcond, label %for.end.loopexit, label %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %x, i64 %indvars.iv
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store i32 %0, i32* %arrayidx3, align 4
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%1 = or i64 %indvars.iv, 1
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%arrayidx5 = getelementptr inbounds i32, i32* %y, i64 %1
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%2 = load i32, i32* %arrayidx5, align 4
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%arrayidx8 = getelementptr inbounds i32, i32* %x, i64 %1
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store i32 %2, i32* %arrayidx8, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 2
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%cmp = icmp slt i64 %indvars.iv.next, %n
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br i1 %cmp, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret i32 0
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}
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; Function Attrs: noinline norecurse nounwind
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define i32 @test3(i32 %n, i32* nocapture %x, i32* nocapture readonly %y) {
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entry:
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%cmp21 = icmp sgt i32 %n, 0
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br i1 %cmp21, label %for.body.preheader, label %for.end
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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;CHECK: for.body:
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;CHECK: %add12 = add i8 %i.022, 2
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;CHECK-NEXT: %conv = sext i8 %add12 to i32
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;CHECK-NEXT: %cmp = icmp slt i32 %conv, %n
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;CHECK-NEXT: br i1 %cmp, label %for.body, label %for.end.loopexit
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%conv23 = phi i32 [ %conv, %for.body ], [ 0, %for.body.preheader ]
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%i.022 = phi i8 [ %add12, %for.body ], [ 0, %for.body.preheader ]
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%idxprom = sext i8 %i.022 to i64
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%arrayidx = getelementptr inbounds i32, i32* %y, i64 %idxprom
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %x, i64 %idxprom
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store i32 %0, i32* %arrayidx3, align 4
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%add = or i32 %conv23, 1
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%idxprom5 = sext i32 %add to i64
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%arrayidx6 = getelementptr inbounds i32, i32* %y, i64 %idxprom5
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%1 = load i32, i32* %arrayidx6, align 4
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%arrayidx10 = getelementptr inbounds i32, i32* %x, i64 %idxprom5
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store i32 %1, i32* %arrayidx10, align 4
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%add12 = add i8 %i.022, 2
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%conv = sext i8 %add12 to i32
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%cmp = icmp slt i32 %conv, %n
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br i1 %cmp, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret i32 0
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}
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; Function Attrs: noinline norecurse nounwind
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define i32 @test4(i64 %n, i32* nocapture %x, i32* nocapture readonly %y) {
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entry:
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%cmp18 = icmp eq i64 %n, 0
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br i1 %cmp18, label %for.end, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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;CHECK: for.body:
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;CHECK-NEXT: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %for.body.preheader ]
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;CHECK-NEXT: %arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvar
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;CHECK-NEXT: [[T1:%[0-9]+]] = load i32, i32* %arrayidx, align 4
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;CHECK-NEXT: %arrayidx3 = getelementptr inbounds i32, i32* %x, i64 %indvar
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;CHECK-NEXT: store i32 [[T1]], i32* %arrayidx3, align 4
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;CHECK-NEXT: %indvar.next = add i64 %indvar, 1
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;CHECK-NEXT: %exitcond = icmp eq i64 %indvar, %{{[0-9]+}}
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;CHECK-NEXT: br i1 %exitcond, label %for.end.loopexit, label %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, i32* %x, i64 %indvars.iv
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store i32 %0, i32* %arrayidx3, align 4
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%1 = or i64 %indvars.iv, 1
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%arrayidx5 = getelementptr inbounds i32, i32* %y, i64 %1
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%2 = load i32, i32* %arrayidx5, align 4
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%arrayidx8 = getelementptr inbounds i32, i32* %x, i64 %1
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store i32 %2, i32* %arrayidx8, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 2
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%cmp = icmp ult i64 %indvars.iv.next, %n
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br i1 %cmp, label %for.body, label %for.end.loopexit
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret i32 0
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}
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