forked from OSchip/llvm-project
320 lines
10 KiB
LLVM
320 lines
10 KiB
LLVM
; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -unroll-runtime < %s -S | FileCheck %s
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; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -unroll-runtime -unroll-and-jam-threshold=15 < %s -S | FileCheck %s --check-prefix=CHECK-LOWTHRES
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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; CHECK-LABEL: test1
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; Basic check that these loops are by default UnJ'd
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define void @test1(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us.{{[1-9]*}}, %for.latch ], [ 0, %for.outer.preheader.new ]
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; CHECK-LOWTHRES: %i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: nounroll_and_jam
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; #pragma nounroll_and_jam
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define void @nounroll_and_jam(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !1
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: unroll_and_jam_count
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; #pragma unroll_and_jam(8)
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define void @unroll_and_jam_count(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us.7, %for.latch ], [ 0, %for.outer.preheader.new ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !3
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: unroll_and_jam
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; #pragma unroll_and_jam
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define void @unroll_and_jam(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us.{{[1-9]*}}, %for.latch ], [ 0, %for.outer.preheader.new ]
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; CHECK-LOWTHRES: %i.us = phi i32 [ %add8.us.{{[1-9]*}}, %for.latch ], [ 0, %for.outer.preheader.new ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !5
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: nounroll
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; #pragma nounroll (which we take to mean disable unroll and jam too)
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define void @nounroll(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !7
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: unroll
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; #pragma unroll (which we take to mean disable unroll and jam)
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define void @unroll(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !9
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: nounroll_plus_unroll_and_jam
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; #pragma clang loop nounroll, unroll_and_jam (which we take to mean do unroll_and_jam)
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define void @nounroll_plus_unroll_and_jam(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
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; CHECK: %i.us = phi i32 [ %add8.us.{{[1-9]*}}, %for.latch ], [ 0, %for.outer.preheader.new ]
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entry:
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%cmp = icmp ne i32 %J, 0
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%cmp122 = icmp ne i32 %I, 0
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%or.cond = and i1 %cmp, %cmp122
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br i1 %or.cond, label %for.outer.preheader, label %for.end
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for.outer.preheader:
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br label %for.outer
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for.outer:
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%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
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br label %for.inner
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for.inner:
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%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
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%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
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%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
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%0 = load i32, i32* %arrayidx.us, align 4
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%add.us = add i32 %0, %sum1.us
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%inc.us = add nuw i32 %j.us, 1
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%exitcond = icmp eq i32 %inc.us, %J
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br i1 %exitcond, label %for.latch, label %for.inner
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for.latch:
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%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
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%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
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store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
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%add8.us = add nuw i32 %i.us, 1
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%exitcond25 = icmp eq i32 %add8.us, %I
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br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !11
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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!1 = distinct !{!1, !2}
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!2 = distinct !{!"llvm.loop.unroll_and_jam.disable"}
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!3 = distinct !{!3, !4}
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!4 = distinct !{!"llvm.loop.unroll_and_jam.count", i32 8}
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!5 = distinct !{!5, !6}
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!6 = distinct !{!"llvm.loop.unroll_and_jam.enable"}
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!7 = distinct !{!7, !8}
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!8 = distinct !{!"llvm.loop.unroll.disable"}
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!9 = distinct !{!9, !10}
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!10 = distinct !{!"llvm.loop.unroll.enable"}
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!11 = distinct !{!11, !8, !6}
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