110 lines
5.3 KiB
LLVM
110 lines
5.3 KiB
LLVM
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; REQUIRES: asserts
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; RUN: llc -march=hexagon -mcpu=hexagonv65 -O3 -debug-only=pipeliner \
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; RUN: < %s 2>&1 -pipeliner-experimental-cg=true | FileCheck %s
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; Test that the artificial dependences are ignored while computing the
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; circuits.
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; The recurrence should be 1 here. If we do not ignore artificial deps,
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; it will be greater.
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; CHECK: rec=1,
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define void @foo(i32 %size) #0 {
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entry:
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%add = add nsw i32 0, 4
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%shr = ashr i32 %size, 1
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br i1 undef, label %L57.us, label %L57.us.ur
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L57.us:
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%R9.0470.us = phi i32 [ %sub40.us.3, %L57.us ], [ undef, %entry ]
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%sub40.us.3 = add i32 %R9.0470.us, -64
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br i1 undef, label %L57.us, label %for.cond22.for.end_crit_edge.us.ur-lcssa
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for.cond22.for.end_crit_edge.us.ur-lcssa:
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%inc.us.3.lcssa = phi i32 [ undef, %L57.us ]
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%sub40.us.3.lcssa = phi i32 [ %sub40.us.3, %L57.us ]
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%0 = icmp eq i32 %inc.us.3.lcssa, %shr
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br i1 %0, label %for.cond22.for.end_crit_edge.us, label %L57.us.ur
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L57.us.ur:
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%R15_14.0478.us.ur = phi i64 [ %1, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R13_12.0477.us.ur = phi i64 [ %14, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R11_10.0476.us.ur = phi i64 [ %8, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R7_6.0475.us.ur = phi i64 [ %7, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R5_4.2474.us.ur = phi i64 [ %16, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R3_2.0473.us.ur = phi i64 [ %9, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R1_0.0472.us.ur = phi i64 [ %15, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%kk.0471.us.ur = phi i32 [ %inc.us.ur, %L57.us.ur ], [ 0, %entry ], [ %inc.us.3.lcssa, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R9.0470.us.ur = phi i32 [ %sub40.us.ur, %L57.us.ur ], [ undef, %entry ], [ %sub40.us.3.lcssa, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%R8.0469.us.ur = phi i32 [ %sub34.us.ur, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
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%1 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R15_14.0478.us.ur, i64 %R1_0.0472.us.ur, i64 %R3_2.0473.us.ur)
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%2 = tail call i64 @llvm.hexagon.S2.shuffeh(i64 %R5_4.2474.us.ur, i64 %R7_6.0475.us.ur)
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%3 = inttoptr i32 %R9.0470.us.ur to i16*
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%4 = load i16, i16* %3, align 2
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%conv27.us.ur = sext i16 %4 to i32
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%sub28.us.ur = add i32 %R9.0470.us.ur, -8
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%5 = inttoptr i32 %R8.0469.us.ur to i16*
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%6 = load i16, i16* %5, align 2
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%conv30.us.ur = sext i16 %6 to i32
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%sub31.us.ur = add i32 %R8.0469.us.ur, -8
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%7 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv27.us.ur, i32 %conv30.us.ur)
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%8 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R11_10.0476.us.ur, i64 %R1_0.0472.us.ur, i64 %2)
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%9 = tail call i64 @llvm.hexagon.S2.shuffeh(i64 %7, i64 %R5_4.2474.us.ur)
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%10 = inttoptr i32 %sub31.us.ur to i16*
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%11 = load i16, i16* %10, align 2
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%conv33.us.ur = sext i16 %11 to i32
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%sub34.us.ur = add i32 %R8.0469.us.ur, -16
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%conv35.us.ur = trunc i64 %9 to i32
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%12 = inttoptr i32 %sub28.us.ur to i16*
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%13 = load i16, i16* %12, align 2
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%conv39.us.ur = sext i16 %13 to i32
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%sub40.us.ur = add i32 %R9.0470.us.ur, -16
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%14 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R13_12.0477.us.ur, i64 %R1_0.0472.us.ur, i64 %9)
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%15 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv35.us.ur, i32 undef)
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%16 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv39.us.ur, i32 %conv33.us.ur)
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%inc.us.ur = add nsw i32 %kk.0471.us.ur, 1
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%exitcond535.ur = icmp eq i32 %inc.us.ur, %shr
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br i1 %exitcond535.ur, label %for.cond22.for.end_crit_edge.us.ur-lcssa572, label %L57.us.ur
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for.cond22.for.end_crit_edge.us.ur-lcssa572:
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%.lcssa730 = phi i64 [ %14, %L57.us.ur ]
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%.lcssa729 = phi i64 [ %8, %L57.us.ur ]
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%.lcssa728 = phi i64 [ %1, %L57.us.ur ]
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%extract.t652 = trunc i64 %.lcssa730 to i32
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%extract661 = lshr i64 %.lcssa729, 32
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%extract.t662 = trunc i64 %extract661 to i32
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%extract.t664 = trunc i64 %.lcssa728 to i32
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br label %for.cond22.for.end_crit_edge.us
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for.cond22.for.end_crit_edge.us:
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%.lcssa551.off0 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t652, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
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%.lcssa550.off32 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t662, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
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%.lcssa549.off0 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t664, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
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%17 = inttoptr i32 %add to i32*
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store i32 %.lcssa549.off0, i32* %17, align 4
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%add.ptr61.us = getelementptr inbounds i8, i8* null, i32 32
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%18 = bitcast i8* %add.ptr61.us to i32*
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store i32 %.lcssa551.off0, i32* %18, align 4
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%19 = bitcast i8* undef to i32*
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store i32 %.lcssa550.off32, i32* %19, align 4
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call void @llvm.trap()
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unreachable
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}
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; Function Attrs: nounwind readnone
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declare i64 @llvm.hexagon.A2.combinew(i32, i32) #1
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; Function Attrs: nounwind readnone
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declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
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; Function Attrs: nounwind readnone
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declare i64 @llvm.hexagon.S2.shuffeh(i64, i64) #1
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; Function Attrs: noreturn nounwind
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declare void @llvm.trap() #2
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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attributes #2 = { noreturn nounwind }
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