47 lines
979 B
LLVM
47 lines
979 B
LLVM
; RUN: opt -S -inline %s | FileCheck %s
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; RUN: opt -S -passes='cgscc(inline)' %s | FileCheck %s
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declare void @foo()
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declare void @bar()
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define void @callee(i8* %arg) {
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%cmp = icmp eq i8* %arg, null
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br i1 %cmp, label %expensive, label %done
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; This block is designed to be too expensive to inline. We can only inline
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; callee if this block is known to be dead.
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expensive:
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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ret void
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done:
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call void @bar()
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ret void
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}
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; Positive test - arg is known non null
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define void @caller(i8* nonnull %arg) {
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; CHECK-LABEL: @caller
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; CHECK: call void @bar()
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call void @callee(i8* nonnull %arg)
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ret void
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}
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; Negative test - arg is not known to be non null
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define void @caller2(i8* %arg) {
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; CHECK-LABEL: @caller2
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; CHECK: call void @callee(
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call void @callee(i8* %arg)
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ret void
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}
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