Files
clang-p2996/llvm/test/Transforms/FunctionSpecialization/noinline.ll
Alexandros Lamprineas 8136a0172b [FuncSpec] Make the Function Specializer part of the IPSCCP pass.
Reland 877a9f9abe since D138654 (parent)
has been fixed with 9ebaf4fef4 and with
8f1e11c5a7.

Differential Revision: https://reviews.llvm.org/D126455
2022-12-10 14:39:49 +00:00

36 lines
839 B
LLVM

; RUN: opt -S --passes=ipsccp -specialize-functions < %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.1
; CHECK: @f.2