split-indirectbr-critical-edges.ll
1.68 KB
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; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s
; Function Attrs: norecurse nounwind readnone uwtable
define i32 @bar(i32 %v) local_unnamed_addr #0 {
entry:
%mul = shl nsw i32 %v, 1
ret i32 %mul
}
; Function Attrs: norecurse nounwind readonly uwtable
define i32 @foo(i8* nocapture readonly %p) #1 {
entry:
%targets = alloca [256 x i8*], align 16
%arrayidx1 = getelementptr inbounds [256 x i8*], [256 x i8*]* %targets, i64 0, i64 93
store i8* blockaddress(@foo, %if.end), i8** %arrayidx1, align 8
br label %for.cond2
for.cond2: ; preds = %if.end, %for.cond2, %entry
; CHECK: for.cond2: ; preds = %.split1
%p.addr.0 = phi i8* [ %p, %entry ], [ %incdec.ptr5, %if.end ], [ %incdec.ptr, %for.cond2 ]
%incdec.ptr = getelementptr inbounds i8, i8* %p.addr.0, i64 1
%0 = load i8, i8* %p.addr.0, align 1
%cond = icmp eq i8 %0, 93
br i1 %cond, label %if.end.preheader, label %for.cond2
if.end.preheader: ; preds = %for.cond2
br label %if.end
if.end: ; preds = %if.end.preheader, %if.end
; CHECK: if.end: ; preds = %.split1
%p.addr.1 = phi i8* [ %incdec.ptr5, %if.end ], [ %incdec.ptr, %if.end.preheader ]
%incdec.ptr5 = getelementptr inbounds i8, i8* %p.addr.1, i64 1
%1 = load i8, i8* %p.addr.1, align 1
%idxprom6 = zext i8 %1 to i64
%arrayidx7 = getelementptr inbounds [256 x i8*], [256 x i8*]* %targets, i64 0, i64 %idxprom6
%2 = load i8*, i8** %arrayidx7, align 8
indirectbr i8* %2, [label %for.cond2, label %if.end]
; CHECK: indirectbr i8* %2, [label %for.cond2, label %if.end]
}