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Apply -flto-partition=one / -flto=full

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This patch fixes a potential bug derived from an incompatibility between LTO and top-level assembly code (INCBIN).

Passed non-regression STC (master e90341f):
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 119352 W: 31986 L: 31862 D: 55504
Ptnml(0-2): 439, 12624, 33400, 12800, 413
https://tests.stockfishchess.org/tests/view/634aacf84bc7650f0755188b

closes https://github.com/official-stockfish/Stockfish/pull/4201

No functional change
This commit is contained in:
MinetaS 2022-10-17 00:03:08 +09:00 • committed by Joost VandeVondele
parent 79c5f3a692
commit 234d2156fd
2 changed files with 4 additions and 3 deletions
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1
AUTHORS
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@ -189,6 +189,7 @@ Stefan Geschwentner (locutus2)
Stefano Cardanobile (Stefano80) Stefano Cardanobile (Stefano80)
Steinar Gunderson (sesse) Steinar Gunderson (sesse)
Stéphane Nicolet (snicolet) Stéphane Nicolet (snicolet)
Syine Mineta (MinetaS)
Prokop Randáček (ProkopRandacek) Prokop Randáček (ProkopRandacek)
Thanar2 Thanar2
thaspel thaspel

6
src/Makefile
View file

@ -678,7 +678,7 @@ endif
ifeq ($(optimize),yes) ifeq ($(optimize),yes)
ifeq ($(debug), no) ifeq ($(debug), no)
ifeq ($(comp),clang) ifeq ($(comp),clang)
CXXFLAGS += -flto CXXFLAGS += -flto=full
ifeq ($(target_windows),yes) ifeq ($(target_windows),yes)
CXXFLAGS += -fuse-ld=lld CXXFLAGS += -fuse-ld=lld
endif endif
@ -688,10 +688,10 @@ ifeq ($(debug), no)
# GCC on some systems. # GCC on some systems.
else ifeq ($(comp),gcc) else ifeq ($(comp),gcc)
ifeq ($(gccisclang),) ifeq ($(gccisclang),)
CXXFLAGS += -flto CXXFLAGS += -flto -flto-partition=one
LDFLAGS += $(CXXFLAGS) -flto=jobserver LDFLAGS += $(CXXFLAGS) -flto=jobserver
else else
CXXFLAGS += -flto CXXFLAGS += -flto=full
LDFLAGS += $(CXXFLAGS) LDFLAGS += $(CXXFLAGS)
endif endif