fix incorrect encoding of SBB8mi that Kevin noticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95448 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index d604c176b15402992a0cc7f1b6f7799c18fd576d..0844bf9bd53963be3b76ceb174e1462bf014ca7a 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -3028,8 +3028,8 @@ let isTwoAddress = 0 in {
   def SBB32mr  : I<0x19, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2), 
                    "sbb{l}\t{$src2, $dst|$dst, $src2}",
                    [(store (sube (load addr:$dst), GR32:$src2), addr:$dst)]>;
-  def SBB8mi  : Ii32<0x80, MRM3m, (outs), (ins i8mem:$dst, i8imm:$src2), 
-                      "sbb{b}\t{$src2, $dst|$dst, $src2}",
+  def SBB8mi  : Ii8<0x80, MRM3m, (outs), (ins i8mem:$dst, i8imm:$src2), 
+                    "sbb{b}\t{$src2, $dst|$dst, $src2}",
                    [(store (sube (loadi8 addr:$dst), imm:$src2), addr:$dst)]>;
   def SBB16mi  : Ii16<0x81, MRM3m, (outs), (ins i16mem:$dst, i16imm:$src2), 
                       "sbb{w}\t{$src2, $dst|$dst, $src2}",

diff --git a/test/MC/AsmParser/X86/x86_32-encoding.s b/test/MC/AsmParser/X86/x86_32-encoding.s
index 3afdccaf95b073476fe83d94294a704785e56208..5161527ff08d2c2a053d061a77e691e6fae15ba8 100644 (file)
--- a/test/MC/AsmParser/X86/x86_32-encoding.s
+++ b/test/MC/AsmParser/X86/x86_32-encoding.s
@@ -1,5 +1,8 @@
 // RUN: llvm-mc -triple i386-unknown-unknown %s -show-encoding | FileCheck %s
 
 fisttpl        3735928559(%ebx,%ecx,8)
-
 # CHECK: encoding: [0xdb,0x8c,0xcb,0xef,0xbe,0xad,0xde]
+
+sbbb    $0xfe,0xdeadbeef(%ebx,%ecx,8)
+
+# CHECK: encoding: [0x80,0x9c,0xcb,0xef,0xbe,0xad,0xde,0xfe]
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