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-rw-r--r--test/CodeGen/AArch64/arm64-ccmp-heuristics.ll190
1 files changed, 190 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-ccmp-heuristics.ll b/test/CodeGen/AArch64/arm64-ccmp-heuristics.ll
new file mode 100644
index 0000000000..664a26cafe
--- /dev/null
+++ b/test/CodeGen/AArch64/arm64-ccmp-heuristics.ll
@@ -0,0 +1,190 @@
+; RUN: llc < %s -mcpu=cyclone -verify-machineinstrs -aarch64-ccmp | FileCheck %s
+target triple = "arm64-apple-ios7.0.0"
+
+@channelColumns = external global i64
+@channelTracks = external global i64
+@mazeRoute = external hidden unnamed_addr global i8*, align 8
+@TOP = external global i64*
+@BOT = external global i64*
+@netsAssign = external global i64*
+
+; Function from yacr2/maze.c
+; The branch at the end of %if.then is driven by %cmp5 and %cmp6.
+; Isel converts the and i1 into two branches, and arm64-ccmp should not convert
+; it back again. %cmp6 has much higher latency than %cmp5.
+; CHECK: Maze1
+; CHECK: %if.then
+; CHECK: cmp x{{[0-9]+}}, #2
+; CHECK-NEXT b.cc
+; CHECK: %if.then
+; CHECK: cmp x{{[0-9]+}}, #2
+; CHECK-NEXT b.cc
+define i32 @Maze1() nounwind ssp {
+entry:
+ %0 = load i64* @channelColumns, align 8, !tbaa !0
+ %cmp90 = icmp eq i64 %0, 0
+ br i1 %cmp90, label %for.end, label %for.body
+
+for.body: ; preds = %for.inc, %entry
+ %1 = phi i64 [ %0, %entry ], [ %37, %for.inc ]
+ %i.092 = phi i64 [ 1, %entry ], [ %inc53, %for.inc ]
+ %numLeft.091 = phi i32 [ 0, %entry ], [ %numLeft.1, %for.inc ]
+ %2 = load i8** @mazeRoute, align 8, !tbaa !3
+ %arrayidx = getelementptr inbounds i8* %2, i64 %i.092
+ %3 = load i8* %arrayidx, align 1, !tbaa !1
+ %tobool = icmp eq i8 %3, 0
+ br i1 %tobool, label %for.inc, label %if.then
+
+if.then: ; preds = %for.body
+ %4 = load i64** @TOP, align 8, !tbaa !3
+ %arrayidx1 = getelementptr inbounds i64* %4, i64 %i.092
+ %5 = load i64* %arrayidx1, align 8, !tbaa !0
+ %6 = load i64** @netsAssign, align 8, !tbaa !3
+ %arrayidx2 = getelementptr inbounds i64* %6, i64 %5
+ %7 = load i64* %arrayidx2, align 8, !tbaa !0
+ %8 = load i64** @BOT, align 8, !tbaa !3
+ %arrayidx3 = getelementptr inbounds i64* %8, i64 %i.092
+ %9 = load i64* %arrayidx3, align 8, !tbaa !0
+ %arrayidx4 = getelementptr inbounds i64* %6, i64 %9
+ %10 = load i64* %arrayidx4, align 8, !tbaa !0
+ %cmp5 = icmp ugt i64 %i.092, 1
+ %cmp6 = icmp ugt i64 %10, 1
+ %or.cond = and i1 %cmp5, %cmp6
+ br i1 %or.cond, label %land.lhs.true7, label %if.else
+
+land.lhs.true7: ; preds = %if.then
+ %11 = load i64* @channelTracks, align 8, !tbaa !0
+ %add = add i64 %11, 1
+ %call = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 %add, i64 %10, i64 0, i64 %7, i32 -1, i32 -1)
+ %tobool8 = icmp eq i32 %call, 0
+ br i1 %tobool8, label %land.lhs.true7.if.else_crit_edge, label %if.then9
+
+land.lhs.true7.if.else_crit_edge: ; preds = %land.lhs.true7
+ %.pre = load i64* @channelColumns, align 8, !tbaa !0
+ br label %if.else
+
+if.then9: ; preds = %land.lhs.true7
+ %12 = load i8** @mazeRoute, align 8, !tbaa !3
+ %arrayidx10 = getelementptr inbounds i8* %12, i64 %i.092
+ store i8 0, i8* %arrayidx10, align 1, !tbaa !1
+ %13 = load i64** @TOP, align 8, !tbaa !3
+ %arrayidx11 = getelementptr inbounds i64* %13, i64 %i.092
+ %14 = load i64* %arrayidx11, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %14)
+ %15 = load i64** @BOT, align 8, !tbaa !3
+ %arrayidx12 = getelementptr inbounds i64* %15, i64 %i.092
+ %16 = load i64* %arrayidx12, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %16)
+ br label %for.inc
+
+if.else: ; preds = %land.lhs.true7.if.else_crit_edge, %if.then
+ %17 = phi i64 [ %.pre, %land.lhs.true7.if.else_crit_edge ], [ %1, %if.then ]
+ %cmp13 = icmp ult i64 %i.092, %17
+ %or.cond89 = and i1 %cmp13, %cmp6
+ br i1 %or.cond89, label %land.lhs.true16, label %if.else24
+
+land.lhs.true16: ; preds = %if.else
+ %18 = load i64* @channelTracks, align 8, !tbaa !0
+ %add17 = add i64 %18, 1
+ %call18 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 %add17, i64 %10, i64 0, i64 %7, i32 1, i32 -1)
+ %tobool19 = icmp eq i32 %call18, 0
+ br i1 %tobool19, label %if.else24, label %if.then20
+
+if.then20: ; preds = %land.lhs.true16
+ %19 = load i8** @mazeRoute, align 8, !tbaa !3
+ %arrayidx21 = getelementptr inbounds i8* %19, i64 %i.092
+ store i8 0, i8* %arrayidx21, align 1, !tbaa !1
+ %20 = load i64** @TOP, align 8, !tbaa !3
+ %arrayidx22 = getelementptr inbounds i64* %20, i64 %i.092
+ %21 = load i64* %arrayidx22, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %21)
+ %22 = load i64** @BOT, align 8, !tbaa !3
+ %arrayidx23 = getelementptr inbounds i64* %22, i64 %i.092
+ %23 = load i64* %arrayidx23, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %23)
+ br label %for.inc
+
+if.else24: ; preds = %land.lhs.true16, %if.else
+ br i1 %cmp5, label %land.lhs.true26, label %if.else36
+
+land.lhs.true26: ; preds = %if.else24
+ %24 = load i64* @channelTracks, align 8, !tbaa !0
+ %cmp27 = icmp ult i64 %7, %24
+ br i1 %cmp27, label %land.lhs.true28, label %if.else36
+
+land.lhs.true28: ; preds = %land.lhs.true26
+ %add29 = add i64 %24, 1
+ %call30 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 0, i64 %7, i64 %add29, i64 %10, i32 -1, i32 1)
+ %tobool31 = icmp eq i32 %call30, 0
+ br i1 %tobool31, label %if.else36, label %if.then32
+
+if.then32: ; preds = %land.lhs.true28
+ %25 = load i8** @mazeRoute, align 8, !tbaa !3
+ %arrayidx33 = getelementptr inbounds i8* %25, i64 %i.092
+ store i8 0, i8* %arrayidx33, align 1, !tbaa !1
+ %26 = load i64** @TOP, align 8, !tbaa !3
+ %arrayidx34 = getelementptr inbounds i64* %26, i64 %i.092
+ %27 = load i64* %arrayidx34, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %27)
+ %28 = load i64** @BOT, align 8, !tbaa !3
+ %arrayidx35 = getelementptr inbounds i64* %28, i64 %i.092
+ %29 = load i64* %arrayidx35, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %29)
+ br label %for.inc
+
+if.else36: ; preds = %land.lhs.true28, %land.lhs.true26, %if.else24
+ %30 = load i64* @channelColumns, align 8, !tbaa !0
+ %cmp37 = icmp ult i64 %i.092, %30
+ br i1 %cmp37, label %land.lhs.true38, label %if.else48
+
+land.lhs.true38: ; preds = %if.else36
+ %31 = load i64* @channelTracks, align 8, !tbaa !0
+ %cmp39 = icmp ult i64 %7, %31
+ br i1 %cmp39, label %land.lhs.true40, label %if.else48
+
+land.lhs.true40: ; preds = %land.lhs.true38
+ %add41 = add i64 %31, 1
+ %call42 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 0, i64 %7, i64 %add41, i64 %10, i32 1, i32 1)
+ %tobool43 = icmp eq i32 %call42, 0
+ br i1 %tobool43, label %if.else48, label %if.then44
+
+if.then44: ; preds = %land.lhs.true40
+ %32 = load i8** @mazeRoute, align 8, !tbaa !3
+ %arrayidx45 = getelementptr inbounds i8* %32, i64 %i.092
+ store i8 0, i8* %arrayidx45, align 1, !tbaa !1
+ %33 = load i64** @TOP, align 8, !tbaa !3
+ %arrayidx46 = getelementptr inbounds i64* %33, i64 %i.092
+ %34 = load i64* %arrayidx46, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %34)
+ %35 = load i64** @BOT, align 8, !tbaa !3
+ %arrayidx47 = getelementptr inbounds i64* %35, i64 %i.092
+ %36 = load i64* %arrayidx47, align 8, !tbaa !0
+ tail call fastcc void @CleanNet(i64 %36)
+ br label %for.inc
+
+if.else48: ; preds = %land.lhs.true40, %land.lhs.true38, %if.else36
+ %inc = add nsw i32 %numLeft.091, 1
+ br label %for.inc
+
+for.inc: ; preds = %if.else48, %if.then44, %if.then32, %if.then20, %if.then9, %for.body
+ %numLeft.1 = phi i32 [ %numLeft.091, %if.then9 ], [ %numLeft.091, %if.then20 ], [ %numLeft.091, %if.then32 ], [ %numLeft.091, %if.then44 ], [ %inc, %if.else48 ], [ %numLeft.091, %for.body ]
+ %inc53 = add i64 %i.092, 1
+ %37 = load i64* @channelColumns, align 8, !tbaa !0
+ %cmp = icmp ugt i64 %inc53, %37
+ br i1 %cmp, label %for.end, label %for.body
+
+for.end: ; preds = %for.inc, %entry
+ %numLeft.0.lcssa = phi i32 [ 0, %entry ], [ %numLeft.1, %for.inc ]
+ ret i32 %numLeft.0.lcssa
+}
+
+; Materializable
+declare hidden fastcc i32 @Maze1Mech(i64, i64, i64, i64, i64, i32, i32) nounwind ssp
+
+; Materializable
+declare hidden fastcc void @CleanNet(i64) nounwind ssp
+
+!0 = metadata !{metadata !"long", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA"}
+!3 = metadata !{metadata !"any pointer", metadata !1}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 12:33:09 +0000