a bunch of ssse3 instructions are misencoded to think they have an

i8 field when they really do not.  This fixes rdar://7840289

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101629 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index ffe2a884b9041a22c4227135f7f098c1c361344e..a9bc5fdbd3aaa928e66b14d8e9c733cb4846a06b 100644 (file)
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -2878,6 +2878,7 @@ let Constraints = "$src1 = $dst" in {
   }
 }
 
+let ImmT = NoImm in {  // None of these have i8 immediate fields.
 defm PHADDW      : SS3I_binop_rm_int_16<0x01, "phaddw",
                                         int_x86_ssse3_phadd_w,
                                         int_x86_ssse3_phadd_w_128>;
@@ -2902,6 +2903,7 @@ defm PMADDUBSW   : SS3I_binop_rm_int_8 <0x04, "pmaddubsw",
 defm PMULHRSW    : SS3I_binop_rm_int_16<0x0B, "pmulhrsw",
                                         int_x86_ssse3_pmul_hr_sw,
                                         int_x86_ssse3_pmul_hr_sw_128, 1>;
+                                        
 defm PSHUFB      : SS3I_binop_rm_int_8 <0x00, "pshufb",
                                         int_x86_ssse3_pshuf_b,
                                         int_x86_ssse3_pshuf_b_128>;
@@ -2914,6 +2916,7 @@ defm PSIGNW      : SS3I_binop_rm_int_16<0x09, "psignw",
 defm PSIGND      : SS3I_binop_rm_int_32<0x0A, "psignd",
                                         int_x86_ssse3_psign_d,
                                         int_x86_ssse3_psign_d_128>;
+}
 
 // palignr patterns.
 let Constraints = "$src1 = $dst" in {

diff --git a/test/MC/AsmParser/X86/x86_32-encoding.s b/test/MC/AsmParser/X86/x86_32-encoding.s
index 22627585220f6eeb27d0dc06efe3ded2535cd4ba..bf573e8b61185f37d2a544a0c202df5237cfb23b 100644 (file)
--- a/test/MC/AsmParser/X86/x86_32-encoding.s
+++ b/test/MC/AsmParser/X86/x86_32-encoding.s
@@ -9961,3 +9961,10 @@
 // CHECK: aeskeygenassist      $125, (%edx,%eax,4), %xmm2
 // CHECK:  encoding: [0x66,0x0f,0x3a,0xdf,0x14,0x82,0x7d]
                 aeskeygenassist $125, (%edx,%eax,4), %xmm2
+
+// rdar://7840289
+// CHECK: pshufb       CPI1_0(%rip), %xmm1
+// CHECK:  encoding: [0x66,0x0f,0x38,0x00,0x0d,A,A,A,A]
+// CHECK:  fixup A - offset: 5, value: CPI1_0-4
+pshufb CPI1_0(%rip), %xmm1   
+