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author Vas Crabb <vas@vastheman.com>2017-12-02 23:41:43 +1100
committer Vas Crabb <vas@vastheman.com>2017-12-02 23:44:19 +1100
commit843cf2982eb245531d454d788821230ca000fb7e (patch)
tree626c4ce66c81549d9879f23d9ebcee0b32d2b339 /src/emu/validity.cpp
parent51c06e670fadc0172268149fee689a54ee06e644 (diff)
allow compiler a little more optimisation leeway in x86 count_leading_* (nw)
Diffstat (limited to 'src/emu/validity.cpp')
-rw-r--r--src/emu/validity.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/emu/validity.cpp b/src/emu/validity.cpp
index a7e87c39f12..ff29b1b7442 100644
--- a/src/emu/validity.cpp
+++ b/src/emu/validity.cpp
@@ -514,9 +514,13 @@ void validity_checker::validate_inlines()
testi32a = (testi32a & 0x0000ffff) | 0x400000;
if (count_leading_zeros(testi32a) != 9)
osd_printf_error("Error testing count_leading_zeros\n");
+ if (count_leading_zeros(0) != 32)
+ osd_printf_error("Error testing count_leading_zeros\n");
testi32a = (testi32a | 0xffff0000) & ~0x400000;
if (count_leading_ones(testi32a) != 9)
osd_printf_error("Error testing count_leading_ones\n");
+ if (count_leading_ones(0xffffffff) != 32)
+ osd_printf_error("Error testing count_leading_ones\n");
}