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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/103463] [12 Regression] ICE: in
 ix86_attr_length_immediate_default, at config/i386/i386.c:16686 with -Os
 -fno-tree-dominator-opts -fno-tree-vrp
Date: Tue, 30 Nov 2021 08:19:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103463

--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index c88374c9d2b..4e9fae80479 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -11512,6 +11512,7 @@ (define_insn "*x86_64_shld_1"
   [(set_attr "type" "ishift")
    (set_attr "prefix_0f" "1")
    (set_attr "mode" "DI")
+   (set_attr "length_immediate" "1")
    (set_attr "athlon_decode" "vector")
    (set_attr "amdfam10_decode" "vector")
    (set_attr "bdver1_decode" "vector")])
@@ -11573,6 +11574,7 @@ (define_insn "*x86_shld_1"
   "shld{l}\t{%2, %1, %0|%0, %1, %2}"
   [(set_attr "type" "ishift")
    (set_attr "prefix_0f" "1")
+   (set_attr "length_immediate" "1")
    (set_attr "mode" "SI")
    (set_attr "pent_pair" "np")
    (set_attr "athlon_decode" "vector")
@@ -12384,6 +12386,7 @@ (define_insn "*x86_64_shrd_1"
   "shrd{q}\t{%2, %1, %0|%0, %1, %2}"
   [(set_attr "type" "ishift")
    (set_attr "prefix_0f" "1")
+   (set_attr "length_immediate" "1")
    (set_attr "mode" "DI")
    (set_attr "athlon_decode" "vector")
    (set_attr "amdfam10_decode" "vector")
@@ -12446,6 +12449,7 @@ (define_insn "*x86_shrd_1"
   "shrd{l}\t{%2, %1, %0|%0, %1, %2}"
   [(set_attr "type" "ishift")
    (set_attr "prefix_0f" "1")
+   (set_attr "length_immediate" "1")
    (set_attr "mode" "SI")
    (set_attr "pent_pair" "np")
    (set_attr "athlon_decode" "vector")=