When first added explicitly in 3ddffba914b2 ("i386.md
(sse4_1_round<mode>2): Add avx512f alternative"), "*" should not have
been used for the pre-existing alternative. The attribute was plain
missing. Subsequent changes adding more alternatives then generously
extended the bogus pattern.
Apparently something similar happened to the two mmx_pblendvb_* insns.
gcc/
* config/i386/i386.md (sse4_1_round<mode>2): Make
"length_immediate" uniformly 1.
* config/i386/mmx.md (mmx_pblendvb_v8qi): Likewise.
(mmx_pblendvb_<mode>): Likewise.
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -21594,7 +21594,7 @@
vrndscale<ssemodesuffix>\t{%2, %1, %d0|%d0, %1, %2}"
[(set_attr "type" "ssecvt")
(set_attr "prefix_extra" "1,1,1,*,*")
- (set_attr "length_immediate" "*,*,*,1,1")
+ (set_attr "length_immediate" "1")
(set_attr "prefix" "maybe_vex,maybe_vex,maybe_vex,evex,evex")
(set_attr "isa" "noavx512f,noavx512f,noavx512f,avx512f,avx512f")
(set_attr "avx_partial_xmm_update" "false,false,true,false,true")
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -3094,7 +3094,7 @@
[(set_attr "isa" "noavx,noavx,avx")
(set_attr "type" "ssemov")
(set_attr "prefix_extra" "1")
- (set_attr "length_immediate" "*,*,1")
+ (set_attr "length_immediate" "1")
(set_attr "prefix" "orig,orig,vex")
(set_attr "btver2_decode" "vector")
(set_attr "mode" "TI")])
@@ -3114,7 +3114,7 @@
[(set_attr "isa" "noavx,noavx,avx")
(set_attr "type" "ssemov")
(set_attr "prefix_extra" "1")
- (set_attr "length_immediate" "*,*,1")
+ (set_attr "length_immediate" "1")
(set_attr "prefix" "orig,orig,vex")
(set_attr "btver2_decode" "vector")
(set_attr "mode" "TI")])
