e34e27f198
Currently we will not be able to inline a large function even if it only has one live use because the inline cost is still very high after applying `LastCallToStaticBonus`, which is a constant. This could significantly impact the performance because CSR spill is very expensive. This PR adds a new function `getInliningLastCallToStaticBonus` to TTI to allow targets to customize this value. Fixes SWDEV-471398.
23 lines
637 B
LLVM
23 lines
637 B
LLVM
; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=inline -inline-threshold=0 -debug-only=inline-cost %s -o - 2>&1 | FileCheck %s
|
|
; REQUIRES: asserts
|
|
|
|
; CHECK: Analyzing call of callee_not_only_one_live_use... (caller:caller)
|
|
; CHECK: Cost: -30
|
|
; CHECK: Analyzing call of callee_only_one_live_use... (caller:caller)
|
|
; CHECK: Cost: -165030
|
|
|
|
define internal void @callee_not_only_one_live_use() {
|
|
ret void
|
|
}
|
|
|
|
define internal void @callee_only_one_live_use() {
|
|
ret void
|
|
}
|
|
|
|
define void @caller() {
|
|
call void @callee_not_only_one_live_use()
|
|
call void @callee_not_only_one_live_use()
|
|
call void @callee_only_one_live_use()
|
|
ret void
|
|
}
|