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llvm-mirror/test/Analysis/BranchProbabilityInfo/loop.ll
Artur Pilipenko fecfcf704c [BPI] Apply invoke heuristic before loop branch heuristic 
Currently the loop branch heuristic is applied before the invoke heuristic which makes us overestimate the probability of the unwind destination of invokes inside loops. This in turn makes us grossly underestimate the frequencies of loops with invokes.

Reviewed By: skatkov, vsk

Differential Revision: https://reviews.llvm.org/D47371

llvm-svn: 334285
2018-06-08 13:03:21 +00:00

524 lines
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; Test the static branch probability heuristics for no-return functions.
; RUN: opt < %s -analyze -branch-prob | FileCheck %s
; RUN: opt < %s -passes='print<branch-prob>' --disable-output 2>&1 | FileCheck %s
declare void @g1()
declare void @g2()
declare void @g3()
declare void @g4()
declare i32 @g5()
define void @test1(i32 %a, i32 %b) {
entry:
br label %do.body
; CHECK: edge entry -> do.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body:
%i.0 = phi i32 [ 0, %entry ], [ %inc3, %do.end ]
call void @g1()
br label %do.body1
; CHECK: edge do.body -> do.body1 probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body1:
%j.0 = phi i32 [ 0, %do.body ], [ %inc, %do.body1 ]
call void @g2()
%inc = add nsw i32 %j.0, 1
%cmp = icmp slt i32 %inc, %b
br i1 %cmp, label %do.body1, label %do.end
; CHECK: edge do.body1 -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.body1 -> do.end probability is 0x04000000 / 0x80000000 = 3.12%
do.end:
call void @g3()
%inc3 = add nsw i32 %i.0, 1
%cmp4 = icmp slt i32 %inc3, %a
br i1 %cmp4, label %do.body, label %do.end5
; CHECK: edge do.end -> do.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.end -> do.end5 probability is 0x04000000 / 0x80000000 = 3.12%
do.end5:
call void @g4()
ret void
}
define void @test2(i32 %a, i32 %b) {
entry:
%cmp9 = icmp sgt i32 %a, 0
br i1 %cmp9, label %for.body.lr.ph, label %for.end6
; CHECK: edge entry -> for.body.lr.ph probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge entry -> for.end6 probability is 0x30000000 / 0x80000000 = 37.50%
for.body.lr.ph:
%cmp27 = icmp sgt i32 %b, 0
br label %for.body
; CHECK: edge for.body.lr.ph -> for.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.body:
%i.010 = phi i32 [ 0, %for.body.lr.ph ], [ %inc5, %for.end ]
call void @g1()
br i1 %cmp27, label %for.body3, label %for.end
; CHECK: edge for.body -> for.body3 probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge for.body -> for.end probability is 0x30000000 / 0x80000000 = 37.50%
for.body3:
%j.08 = phi i32 [ %inc, %for.body3 ], [ 0, %for.body ]
call void @g2()
%inc = add nsw i32 %j.08, 1
%exitcond = icmp eq i32 %inc, %b
br i1 %exitcond, label %for.end, label %for.body3
; CHECK: edge for.body3 -> for.end probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.body3 -> for.body3 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end:
call void @g3()
%inc5 = add nsw i32 %i.010, 1
%exitcond11 = icmp eq i32 %inc5, %a
br i1 %exitcond11, label %for.end6, label %for.body
; CHECK: edge for.end -> for.end6 probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.end -> for.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end6:
call void @g4()
ret void
}
define void @test3(i32 %a, i32 %b, i32* %c) {
entry:
br label %do.body
; CHECK: edge entry -> do.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body:
%i.0 = phi i32 [ 0, %entry ], [ %inc4, %if.end ]
call void @g1()
%0 = load i32, i32* %c, align 4
%cmp = icmp slt i32 %0, 42
br i1 %cmp, label %do.body1, label %if.end
; CHECK: edge do.body -> do.body1 probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge do.body -> if.end probability is 0x40000000 / 0x80000000 = 50.00%
do.body1:
%j.0 = phi i32 [ %inc, %do.body1 ], [ 0, %do.body ]
call void @g2()
%inc = add nsw i32 %j.0, 1
%cmp2 = icmp slt i32 %inc, %b
br i1 %cmp2, label %do.body1, label %if.end
; CHECK: edge do.body1 -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.body1 -> if.end probability is 0x04000000 / 0x80000000 = 3.12%
if.end:
call void @g3()
%inc4 = add nsw i32 %i.0, 1
%cmp5 = icmp slt i32 %inc4, %a
br i1 %cmp5, label %do.body, label %do.end6
; CHECK: edge if.end -> do.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge if.end -> do.end6 probability is 0x04000000 / 0x80000000 = 3.12%
do.end6:
call void @g4()
ret void
}
define void @test4(i32 %a, i32 %b, i32* %c) {
entry:
br label %do.body
; CHECK: edge entry -> do.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body:
%i.0 = phi i32 [ 0, %entry ], [ %inc4, %do.end ]
call void @g1()
%0 = load i32, i32* %c, align 4
%cmp = icmp slt i32 %0, 42
br i1 %cmp, label %return, label %do.body1
; CHECK: edge do.body -> return probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge do.body -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
do.body1:
%j.0 = phi i32 [ %inc, %do.body1 ], [ 0, %do.body ]
call void @g2()
%inc = add nsw i32 %j.0, 1
%cmp2 = icmp slt i32 %inc, %b
br i1 %cmp2, label %do.body1, label %do.end
; CHECK: edge do.body1 -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.body1 -> do.end probability is 0x04000000 / 0x80000000 = 3.12%
do.end:
call void @g3()
%inc4 = add nsw i32 %i.0, 1
%cmp5 = icmp slt i32 %inc4, %a
br i1 %cmp5, label %do.body, label %do.end6
; CHECK: edge do.end -> do.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.end -> do.end6 probability is 0x04000000 / 0x80000000 = 3.12%
do.end6:
call void @g4()
br label %return
; CHECK: edge do.end6 -> return probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
return:
ret void
}
define void @test5(i32 %a, i32 %b, i32* %c) {
entry:
br label %do.body
; CHECK: edge entry -> do.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body:
%i.0 = phi i32 [ 0, %entry ], [ %inc4, %do.end ]
call void @g1()
br label %do.body1
; CHECK: edge do.body -> do.body1 probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body1:
%j.0 = phi i32 [ 0, %do.body ], [ %inc, %if.end ]
%0 = load i32, i32* %c, align 4
%cmp = icmp slt i32 %0, 42
br i1 %cmp, label %return, label %if.end
; CHECK: edge do.body1 -> return probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge do.body1 -> if.end probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
if.end:
call void @g2()
%inc = add nsw i32 %j.0, 1
%cmp2 = icmp slt i32 %inc, %b
br i1 %cmp2, label %do.body1, label %do.end
; CHECK: edge if.end -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge if.end -> do.end probability is 0x04000000 / 0x80000000 = 3.12%
do.end:
call void @g3()
%inc4 = add nsw i32 %i.0, 1
%cmp5 = icmp slt i32 %inc4, %a
br i1 %cmp5, label %do.body, label %do.end6
; CHECK: edge do.end -> do.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.end -> do.end6 probability is 0x04000000 / 0x80000000 = 3.12%
do.end6:
call void @g4()
br label %return
; CHECK: edge do.end6 -> return probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
return:
ret void
}
define void @test6(i32 %a, i32 %b, i32* %c) {
entry:
br label %do.body
; CHECK: edge entry -> do.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body:
%i.0 = phi i32 [ 0, %entry ], [ %inc4, %do.end ]
call void @g1()
br label %do.body1
; CHECK: edge do.body -> do.body1 probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
do.body1:
%j.0 = phi i32 [ 0, %do.body ], [ %inc, %do.cond ]
call void @g2()
%0 = load i32, i32* %c, align 4
%cmp = icmp slt i32 %0, 42
br i1 %cmp, label %return, label %do.cond
; CHECK: edge do.body1 -> return probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge do.body1 -> do.cond probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
do.cond:
%inc = add nsw i32 %j.0, 1
%cmp2 = icmp slt i32 %inc, %b
br i1 %cmp2, label %do.body1, label %do.end
; CHECK: edge do.cond -> do.body1 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.cond -> do.end probability is 0x04000000 / 0x80000000 = 3.12%
do.end:
call void @g3()
%inc4 = add nsw i32 %i.0, 1
%cmp5 = icmp slt i32 %inc4, %a
br i1 %cmp5, label %do.body, label %do.end6
; CHECK: edge do.end -> do.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge do.end -> do.end6 probability is 0x04000000 / 0x80000000 = 3.12%
do.end6:
call void @g4()
br label %return
; CHECK: edge do.end6 -> return probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
return:
ret void
}
define void @test7(i32 %a, i32 %b, i32* %c) {
entry:
%cmp10 = icmp sgt i32 %a, 0
br i1 %cmp10, label %for.body.lr.ph, label %for.end7
; CHECK: edge entry -> for.body.lr.ph probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge entry -> for.end7 probability is 0x30000000 / 0x80000000 = 37.50%
for.body.lr.ph:
%cmp38 = icmp sgt i32 %b, 0
br label %for.body
; CHECK: edge for.body.lr.ph -> for.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.body:
%i.011 = phi i32 [ 0, %for.body.lr.ph ], [ %inc6, %for.inc5 ]
%0 = load i32, i32* %c, align 4
%cmp1 = icmp eq i32 %0, %i.011
br i1 %cmp1, label %for.inc5, label %if.end
; CHECK: edge for.body -> for.inc5 probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge for.body -> if.end probability is 0x40000000 / 0x80000000 = 50.00%
if.end:
call void @g1()
br i1 %cmp38, label %for.body4, label %for.end
; CHECK: edge if.end -> for.body4 probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge if.end -> for.end probability is 0x30000000 / 0x80000000 = 37.50%
for.body4:
%j.09 = phi i32 [ %inc, %for.body4 ], [ 0, %if.end ]
call void @g2()
%inc = add nsw i32 %j.09, 1
%exitcond = icmp eq i32 %inc, %b
br i1 %exitcond, label %for.end, label %for.body4
; CHECK: edge for.body4 -> for.end probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.body4 -> for.body4 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end:
call void @g3()
br label %for.inc5
; CHECK: edge for.end -> for.inc5 probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.inc5:
%inc6 = add nsw i32 %i.011, 1
%exitcond12 = icmp eq i32 %inc6, %a
br i1 %exitcond12, label %for.end7, label %for.body
; CHECK: edge for.inc5 -> for.end7 probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.inc5 -> for.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end7:
call void @g4()
ret void
}
define void @test8(i32 %a, i32 %b, i32* %c) {
entry:
%cmp18 = icmp sgt i32 %a, 0
br i1 %cmp18, label %for.body.lr.ph, label %for.end15
; CHECK: edge entry -> for.body.lr.ph probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge entry -> for.end15 probability is 0x30000000 / 0x80000000 = 37.50%
for.body.lr.ph:
%cmp216 = icmp sgt i32 %b, 0
%arrayidx5 = getelementptr inbounds i32, i32* %c, i64 1
%arrayidx9 = getelementptr inbounds i32, i32* %c, i64 2
br label %for.body
; CHECK: edge for.body.lr.ph -> for.body probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.body:
%i.019 = phi i32 [ 0, %for.body.lr.ph ], [ %inc14, %for.end ]
call void @g1()
br i1 %cmp216, label %for.body3, label %for.end
; CHECK: edge for.body -> for.body3 probability is 0x50000000 / 0x80000000 = 62.50%
; CHECK: edge for.body -> for.end probability is 0x30000000 / 0x80000000 = 37.50%
for.body3:
%j.017 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
%0 = load i32, i32* %c, align 4
%cmp4 = icmp eq i32 %0, %j.017
br i1 %cmp4, label %for.inc, label %if.end
; CHECK: edge for.body3 -> for.inc probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge for.body3 -> if.end probability is 0x40000000 / 0x80000000 = 50.00%
if.end:
%1 = load i32, i32* %arrayidx5, align 4
%cmp6 = icmp eq i32 %1, %j.017
br i1 %cmp6, label %for.inc, label %if.end8
; CHECK: edge if.end -> for.inc probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge if.end -> if.end8 probability is 0x40000000 / 0x80000000 = 50.00%
if.end8:
%2 = load i32, i32* %arrayidx9, align 4
%cmp10 = icmp eq i32 %2, %j.017
br i1 %cmp10, label %for.inc, label %if.end12
; CHECK: edge if.end8 -> for.inc probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge if.end8 -> if.end12 probability is 0x40000000 / 0x80000000 = 50.00%
if.end12:
call void @g2()
br label %for.inc
; CHECK: edge if.end12 -> for.inc probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.inc:
%inc = add nsw i32 %j.017, 1
%exitcond = icmp eq i32 %inc, %b
br i1 %exitcond, label %for.end, label %for.body3
; CHECK: edge for.inc -> for.end probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.inc -> for.body3 probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end:
call void @g3()
%inc14 = add nsw i32 %i.019, 1
%exitcond20 = icmp eq i32 %inc14, %a
br i1 %exitcond20, label %for.end15, label %for.body
; CHECK: edge for.end -> for.end15 probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge for.end -> for.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
for.end15:
call void @g4()
ret void
}
; Test that an irreducible loop gets heavily weighted back-edges.
define void @test9(i32 %i, i32 %x, i32 %c) {
entry:
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %if.end, label %midloop
; CHECK: edge entry -> if.end probability is 0x30000000 / 0x80000000 = 37.50%
; CHECK: edge entry -> midloop probability is 0x50000000 / 0x80000000 = 62.50%
if.end:
br label %for.cond
; CHECK: edge if.end -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.cond:
%i.addr.0 = phi i32 [ %inc, %for.inc ], [ 0, %if.end ]
%cmp = icmp slt i32 %i.addr.0, %x
br i1 %cmp, label %midloop, label %end
; CHECK: edge for.cond -> midloop probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge for.cond -> end probability is 0x04000000 / 0x80000000 = 3.12%
midloop:
%i.addr.1 = phi i32 [ %i, %entry ], [ %i.addr.0, %for.cond ]
%call1 = call i32 @g5()
%tobool2 = icmp eq i32 %call1, 0
br i1 %tobool2, label %for.inc, label %end
; CHECK: edge midloop -> for.inc probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge midloop -> end probability is 0x04000000 / 0x80000000 = 3.12%
for.inc:
%inc = add nsw i32 %i.addr.1, 1
br label %for.cond
; CHECK: edge for.inc -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
end:
ret void
}
; Check that the for.body -> if.then edge is considered unlikely due to making
; the if-condition false for the next iteration of the loop.
define i32 @test10(i32 %n, i32* %p) {
entry:
br label %for.cond
; CHECK: edge entry -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.cond:
%count.0 = phi i32 [ 0, %entry ], [ %count.1, %for.inc ]
%sum.0 = phi i32 [ 0, %entry ], [ %sum.1, %for.inc ]
%i.0 = phi i32 [ 0, %entry ], [ %inc3, %for.inc ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.cond.cleanup
; CHECK: edge for.cond -> for.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge for.cond -> for.cond.cleanup probability is 0x04000000 / 0x80000000 = 3.12%
for.cond.cleanup:
ret i32 %sum.0
for.body:
%arrayidx = getelementptr inbounds i32, i32* %p, i32 %i.0
%0 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %sum.0, %0
%inc = add nsw i32 %count.0, 1
%cmp1 = icmp sgt i32 %count.0, 6
br i1 %cmp1, label %if.then, label %for.inc
; CHECK: edge for.body -> if.then probability is 0x2aaaaaab / 0x80000000 = 33.33%
; CHECK: edge for.body -> for.inc probability is 0x55555555 / 0x80000000 = 66.67%
if.then:
store i32 %add, i32* %arrayidx, align 4
br label %for.inc
; CHECK: edge if.then -> for.inc probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.inc:
%count.1 = phi i32 [ 0, %if.then ], [ %inc, %for.body ]
%sum.1 = phi i32 [ 0, %if.then ], [ %add, %for.body ]
%inc3 = add nsw i32 %i.0, 1
br label %for.cond
; CHECK: edge for.inc -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
}
; Each successor to for.body makes itself not be taken in the next iteration, so
; both should be equally likely
define i32 @test11(i32 %n, i32* %p) {
entry:
br label %for.cond
; CHECK: edge entry -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.cond:
%flip.0 = phi i32 [ 0, %entry ], [ %flip.1, %for.inc ]
%sum.0 = phi i32 [ 0, %entry ], [ %sum.1, %for.inc ]
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp slt i32 %i.0, %n
br i1 %cmp, label %for.body, label %for.cond.cleanup
; CHECK: edge for.cond -> for.body probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge for.cond -> for.cond.cleanup probability is 0x04000000 / 0x80000000 = 3.12%
for.cond.cleanup:
ret i32 %sum.0
for.body:
%tobool = icmp eq i32 %flip.0, 0
%arrayidx1 = getelementptr inbounds i32, i32* %p, i32 %i.0
%0 = load i32, i32* %arrayidx1, align 4
br i1 %tobool, label %if.else, label %if.then
; CHECK: edge for.body -> if.else probability is 0x40000000 / 0x80000000 = 50.00%
; CHECK: edge for.body -> if.then probability is 0x40000000 / 0x80000000 = 50.00%
if.then:
%add = add nsw i32 %0, %sum.0
store i32 %add, i32* %arrayidx1, align 4
br label %for.inc
; CHECK: edge if.then -> for.inc probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
if.else:
%add2 = add nsw i32 %sum.0, %0
br label %for.inc
; CHECK: edge if.else -> for.inc probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
for.inc:
%flip.1 = phi i32 [ 0, %if.then ], [ 1, %if.else ]
%sum.1 = phi i32 [ %sum.0, %if.then ], [ %add2, %if.else ]
%inc = add nsw i32 %i.0, 1
br label %for.cond
; CHECK: edge for.inc -> for.cond probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
}
; The loop heuristic should not overwrite the invoke heuristic. The unwind destination
; of an invoke should be considered VERY rare even in a loop.
define void @test12(i32 %a) personality i8 0 {
entry:
br label %loop
; CHECK: edge entry -> loop probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
loop:
%i.0 = phi i32 [ 0, %entry ], [ %inc, %invoke.cont ]
invoke i32 @InvokeCall()
to label %invoke.cont unwind label %lpad
; CHECK: edge loop -> invoke.cont probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
; CHECK: edge loop -> lpad probability is 0x00000800 / 0x80000000 = 0.00%
invoke.cont:
%inc = add nsw i32 %i.0, 1
%cmp = icmp slt i32 %inc, %a
br i1 %cmp, label %loop, label %exit
; CHECK: edge invoke.cont -> loop probability is 0x7c000000 / 0x80000000 = 96.88% [HOT edge]
; CHECK: edge invoke.cont -> exit probability is 0x04000000 / 0x80000000 = 3.12%
lpad:
%ll = landingpad { i8*, i32 }
cleanup
br label %exit
exit:
ret void
}
declare i32 @InvokeCall()
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