fixup! [AMDGPU][AsmParser] Support true16 register suffix for valid register range

Author: shiltian

llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp

@@ -2896,17 +2896,13 @@ bool AMDGPUAsmParser::ParseRegRange(unsigned &Num, unsigned &RegWidth,
   }
 
   if (RegHi == RegLo) {
-    StringRef RegSuffix;
-    SMLoc RegSuffixLoc = getLoc();
-    if (parseId(RegSuffix)) {
-      if (RegSuffix.consume_back(".l")) {
-        SubReg = AMDGPU::lo16;
-      } else if (RegSuffix.consume_back(".h")) {
-        SubReg = AMDGPU::hi16;
-      } else {
-        Error(RegSuffixLoc, "invalid register suffix");
-        return false;
-      }
+    StringRef RegSuffix = getTokenStr();
+    if (RegSuffix == ".l") {
+      SubReg = AMDGPU::lo16;
+      lex();
+    } else if (RegSuffix == ".h") {
+      SubReg = AMDGPU::hi16;
+      lex();
     }
   }
 

llvm/test/MC/AMDGPU/gfx11_asm_vop1_t16_err.s

@@ -1233,7 +1233,7 @@ v_trunc_f16_e32 v5.l, v199.l quad_perm:[3,2,1,0]
 // GFX11: :[[@LINE-1]]:23: error: invalid operand for instruction
 
 v_ceil_f16_e32 v[5:5].s, 0xfe0b
-// GFX11: :[[@LINE-1]]:22: error: invalid register suffix
+// GFX11: :[[@LINE-1]]:22: error: invalid operand for instruction
 
 v_ceil_f16_e32 v[6:7].l, 0xfe0b
 // GFX11: :[[@LINE-1]]:16: error: invalid operand for instruction