| ; REQUIRES: asserts |
| ; RUN: llc -mtriple=arm64-unknown-linux-gnu -debug-only=tailduplication %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LINUX |
| ; RUN: llc -mtriple=arm64-apple-darwin -debug-only=tailduplication %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=DARWIN |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| @g = common local_unnamed_addr global i32 0, align 4 |
| @f = common local_unnamed_addr global i32 0, align 4 |
| @a = common local_unnamed_addr global i32 0, align 4 |
| @m = common local_unnamed_addr global i32 0, align 4 |
| @l = common local_unnamed_addr global i32 0, align 4 |
| @j = common local_unnamed_addr global i32 0, align 4 |
| @k = common local_unnamed_addr global i32 0, align 4 |
| @i = common local_unnamed_addr global i32 0, align 4 |
| @d = common local_unnamed_addr global i32 0, align 4 |
| @c = common local_unnamed_addr global i32 0, align 4 |
| @e = common local_unnamed_addr global i32 0, align 4 |
| @h = common local_unnamed_addr global i32 0, align 4 |
| |
| ; Function Attrs: norecurse nounwind uwtable |
| define void @n(i32 %o, ptr nocapture readonly %b) local_unnamed_addr #0 { |
| entry: |
| %0 = load i32, ptr @g, align 4, !tbaa !2 |
| %tobool = icmp eq i32 %0, 0 |
| br i1 %tobool, label %entry.if.end_crit_edge, label %if.then |
| |
| entry.if.end_crit_edge: ; preds = %entry |
| %.pre = load i32, ptr @f, align 4, !tbaa !2 |
| br label %if.end |
| |
| if.then: ; preds = %entry |
| store i32 0, ptr @f, align 4, !tbaa !2 |
| br label %if.end |
| |
| ; DARWIN: Merging into block |
| ; LINUX: Merging into block |
| |
| if.end: ; preds = %entry.if.end_crit_edge, %if.then |
| %1 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ 0, %if.then ] |
| %cmp6 = icmp slt i32 %1, %o |
| br i1 %cmp6, label %for.body.lr.ph, label %for.end |
| |
| for.body.lr.ph: ; preds = %if.end |
| %.pre7 = load i32, ptr @a, align 4, !tbaa !2 |
| %.pre8 = load i32, ptr @l, align 4, !tbaa !2 |
| %.pre9 = load i32, ptr @j, align 4, !tbaa !2 |
| %.pre10 = load i32, ptr @k, align 4, !tbaa !2 |
| %.pre11 = load i32, ptr @i, align 4, !tbaa !2 |
| br label %for.body |
| |
| for.body: ; preds = %if.end5, %for.body.lr.ph |
| %2 = phi i32 [ %.pre11, %for.body.lr.ph ], [ %7, %if.end5 ] |
| %3 = phi i32 [ %.pre10, %for.body.lr.ph ], [ %8, %if.end5 ] |
| %4 = phi i32 [ %.pre9, %for.body.lr.ph ], [ %9, %if.end5 ] |
| %5 = phi i32 [ %1, %for.body.lr.ph ], [ %inc, %if.end5 ] |
| store i32 %.pre7, ptr @m, align 4, !tbaa !2 |
| %mul = mul nsw i32 %3, %4 |
| %cmp1 = icmp sgt i32 %.pre8, %mul |
| %conv = zext i1 %cmp1 to i32 |
| %cmp2 = icmp slt i32 %2, %conv |
| br i1 %cmp2, label %if.then4, label %if.end5 |
| |
| if.then4: ; preds = %for.body |
| %6 = load i32, ptr @d, align 4, !tbaa !2 |
| store i32 %6, ptr @k, align 4, !tbaa !2 |
| store i32 %6, ptr @i, align 4, !tbaa !2 |
| store i32 %6, ptr @j, align 4, !tbaa !2 |
| br label %if.end5 |
| |
| if.end5: ; preds = %if.then4, %for.body |
| %7 = phi i32 [ %6, %if.then4 ], [ %2, %for.body ] |
| %8 = phi i32 [ %6, %if.then4 ], [ %3, %for.body ] |
| %9 = phi i32 [ %6, %if.then4 ], [ %4, %for.body ] |
| %10 = load i32, ptr @c, align 4, !tbaa !2 |
| %idxprom = sext i32 %10 to i64 |
| %arrayidx = getelementptr inbounds i32, ptr %b, i64 %idxprom |
| %11 = load i32, ptr %arrayidx, align 4, !tbaa !2 |
| %12 = load i32, ptr @e, align 4, !tbaa !2 |
| %sub = sub nsw i32 %11, %12 |
| store i32 %sub, ptr @h, align 4, !tbaa !2 |
| %inc = add nsw i32 %5, 1 |
| store i32 %inc, ptr @f, align 4, !tbaa !2 |
| %exitcond = icmp eq i32 %inc, %o |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %if.end5, %if.end |
| ret void |
| } |
| |
| attributes #0 = { norecurse nounwind uwtable } |
| |
| !2 = !{!3, !3, i64 0} |
| !3 = !{!"int", !4, i64 0} |
| !4 = !{} |