Hari Limaye 0d1a91e8f9
[FuncSpec] Update MinFunctionSize logic (#112711)
Always require functions to be larger than MinFunctionSize when
SpecializeLiteralConstant is enabled, and increase MinFunctionSize to
500, to prevent excessive triggering of specialisations on small
functions.
2024-10-18 09:21:19 +01:00

36 lines
891 B
LLVM

; RUN: opt -S --passes="ipsccp<func-spec>" -funcspec-for-literal-constant=false < %s | FileCheck %s
define dso_local i32 @p0(i32 noundef %x) {
entry:
%add = add nsw i32 %x, 1
ret i32 %add
}
define dso_local i32 @p1(i32 noundef %x) {
entry:
%sub = add nsw i32 %x, -1
ret i32 %sub
}
define internal fastcc i32 @f(i32 noundef %x, ptr nocapture noundef readonly %p) noinline {
entry:
%call = tail call i32 %p(i32 noundef %x)
%add = add nsw i32 %call, %x
ret i32 %add
}
define dso_local i32 @g0(i32 noundef %x) {
entry:
%call = tail call fastcc i32 @f(i32 noundef %x, ptr noundef nonnull @p0)
ret i32 %call
}
define dso_local i32 @g1(i32 noundef %x) {
entry:
%call = tail call fastcc i32 @f(i32 noundef %x, ptr noundef nonnull @p1)
ret i32 %call
}
; Check that a noinline function is specialized, even if it's small.
; CHECK: @f.specialized.1
; CHECK: @f.specialized.2