Fixed the SS42AI template for the SSE 4.2 instructions with TA prefix so it does

not get an "Unknown immediate size" assert failure when used.  All instructions
of this form have an 8-bit immediate.  Also added a test case of an example
instruction that is of this form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99435 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrFormats.td b/lib/Target/X86/X86InstrFormats.td
index bb81cbf8ac18c326bb6585c35a42a566f00fce54..c06b81b10a19f65941952ce5e4c6e3dd1a9050fe 100644 (file)
--- a/lib/Target/X86/X86InstrFormats.td
+++ b/lib/Target/X86/X86InstrFormats.td
@@ -286,7 +286,7 @@ class SS42FI<bits<8> o, Format F, dag outs, dag ins, string asm,
 //   SS42AI = SSE 4.2 instructions with TA prefix
 class SS42AI<bits<8> o, Format F, dag outs, dag ins, string asm,
              list<dag> pattern>
-      : I<o, F, outs, ins, asm, pattern>, TA, Requires<[HasSSE42]>;
+      : Ii8<o, F, outs, ins, asm, pattern>, TA, Requires<[HasSSE42]>;
 
 // X86-64 Instruction templates...
 //

diff --git a/test/MC/AsmParser/X86/x86_32-encoding.s b/test/MC/AsmParser/X86/x86_32-encoding.s
index 2088aa7bd55145efb07281f02cd16794a6dc075f..95f04e24e57c2991f6e6e6f2407f710b9ff0072b 100644 (file)
--- a/test/MC/AsmParser/X86/x86_32-encoding.s
+++ b/test/MC/AsmParser/X86/x86_32-encoding.s
@@ -9905,3 +9905,11 @@
 // CHECK: crc32l       %ecx, %ecx
 // CHECK:  encoding: [0xf2,0x0f,0x38,0xf1,0xc9]
                 crc32l %ecx,%ecx
+
+// CHECK: pcmpistrm    $125, %xmm1, %xmm2
+// CHECK:  encoding: [0x66,0x0f,0x3a,0x62,0xd1,0x7d]
+                pcmpistrm $125, %xmm1, %xmm2
+
+// CHECK: pcmpistrm    $125, (%edx,%eax,4), %xmm2
+// CHECK:  encoding: [0x66,0x0f,0x3a,0x62,0x14,0x82,0x7d]
+                pcmpistrm $125, (%edx,%eax,4), %xmm2