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Improve performance of bitscanning intrinsics

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This change helps spectre more intelligently plan execution, by working
around false output dependencies, impacting ops like popcnt bsr and bsf
This commit is contained in:
Justine Tunney 2021-06-15 06:24:46 -07:00
parent 29cb53881e
commit 87d7010495
13 changed files with 100 additions and 224 deletions
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5
libc/testlib/testlib.mk
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@ -13,11 +13,13 @@ LIBC_TESTLIB_A = o/$(MODE)/libc/testlib/testlib.a
LIBC_TESTLIB_A_CHECKS = $(LIBC_TESTLIB_A).pkg
LIBC_TESTLIB_A_ASSETS = \
libc/testlib/hyperion.txt
libc/testlib/hyperion.txt \
libc/testlib/blocktronics.txt
LIBC_TESTLIB_A_HDRS = \
libc/testlib/bench.h \
libc/testlib/ezbench.h \
libc/testlib/blocktronics.h \
libc/testlib/hyperion.h \
libc/testlib/testlib.h
@ -25,6 +27,7 @@ LIBC_TESTLIB_A_SRCS_S = \
libc/testlib/bench.S \
libc/testlib/combo.S \
libc/testlib/fixture.S \
libc/testlib/blocktronics.S \
libc/testlib/hyperion.S \
libc/testlib/testcase.S \
libc/testlib/thrashcodecache.S \