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54 lines
1.6 KiB
LLVM
54 lines
1.6 KiB
LLVM
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; The goal of this test is checking if LastCallToStaticBonus is applied
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; correctly while deciding inline deferral. For the test code below, when
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; inliner evaluates the callsite of bar->baz, it checks if inlining of bar->baz
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; prevents ininling of foo->bar, even when foo->bar inlining is more beneficial
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; than bar->baz inlining. As LastCallToStaticBonus has a massive value, and
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; both baz and bar has only one caller, the cost of foo->bar inlining and
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; bar->baz inlining should be non-trivial for inliner to compute that bar->baz
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; inlining can actaully prevent foo->bar inlining. To make the cost of these
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; callsites big enough, loop unrolling pass with very high threshold is used to
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; preprocess the test.
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; RUN: opt < %s -loop-unroll -inline -unroll-threshold=15000 -inline-threshold=250 -S | FileCheck %s
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; RUN: opt < %s -passes='function(require<opt-remark-emit>,unroll),require<profile-summary>,cgscc(inline)' -unroll-threshold=15000 -inline-threshold=250 -S | FileCheck %s
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; CHECK-LABEL: define internal i32 @bar()
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define internal i32 @baz() {
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entry:
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br label %bb1
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bb1:
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%ind = phi i32 [ 0, %entry ], [ %inc, %bb1 ]
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call void @extern()
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%inc = add nsw i32 %ind, 1
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%cmp = icmp sgt i32 %inc, 510
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br i1 %cmp, label %ret, label %bb1
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ret:
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ret i32 0
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}
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define internal i32 @bar() {
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entry:
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br label %bb1
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bb1:
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%ind = phi i32 [ 0, %entry ], [ %inc, %bb1 ]
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call void @extern()
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%inc = add nsw i32 %ind, 1
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%cmp = icmp sgt i32 %inc, 510
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br i1 %cmp, label %ret, label %bb1
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ret:
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call i32 @baz()
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ret i32 0
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}
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define i32 @foo() {
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entry:
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call i32 @bar()
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ret i32 0
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}
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declare void @extern()
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