11c8efd4db
Otherwise, inlining costs may be pessimized by dead constants. Fixes https://bugs.llvm.org/show_bug.cgi?id=51667. Reviewed By: mtrofin, aeubanks Differential Revision: https://reviews.llvm.org/D109294
33 lines
961 B
LLVM
33 lines
961 B
LLVM
; Test to ensure that the inlining cost model isn't tripped up by dead constant users.
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; In this case, the call to g via a bitcasted function pointer is canonicalized to
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; a direct call to g with bitcasted arguments, leaving the original bitcast
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; as a dead use of g.
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; RUN: opt < %s -instcombine -inline -pass-remarks=inline -S 2>&1 \
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; RUN: | FileCheck %s
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; Inline costs of f and g should be the same.
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; CHECK: 'f' inlined into 'h' with (cost=[[EXPECTED_COST:.+]], threshold={{.+}})
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; CHECK: 'g' inlined into 'h' with (cost=[[EXPECTED_COST]], threshold={{.+}})
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%0 = type { i64, i64, i64 }
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%1 = type { i64, i64, i64 }
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define internal void @f(%0* align 8 %a) unnamed_addr {
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start:
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ret void
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}
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define internal void @g(%0* align 8 %a) unnamed_addr {
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start:
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ret void
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}
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define void @h(%0* align 8 %a, %1* align 8 %b) unnamed_addr {
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start:
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call void @f(%0* align 8 %a)
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call void bitcast (void (%0*)* @g to void (%1*)*)(%1* align 8 %b)
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ret void
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}
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