Thumb2 parsing and encoding for DBG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139191 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 7aaadef93ab8829f893bdffcad71e382c283ece3..8a1bcc2d64ab37097598553b06e470f3297d3241 100644 (file)
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -3173,13 +3173,11 @@ def t2WFI   : T2I_hint<0b00000011, "wfi",   ".w">;
 def t2SEV   : T2I_hint<0b00000100, "sev",   ".w">;
 
 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
-  let Inst{31-20} = 0xf3a;
-  let Inst{15-14} = 0b10;
-  let Inst{12} = 0;
-  let Inst{10-8} = 0b000;
-  let Inst{7-4} = 0b1111;
-
   bits<4> opt;
+  let Inst{31-20} = 0b111100111010;
+  let Inst{19-16} = 0b1111;
+  let Inst{15-8} = 0b10000000;
+  let Inst{7-4} = 0b1111;
   let Inst{3-0} = opt;
 }
 

diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index c9a9a112174a307042236b5ab1648af3955a6db4..3039f2442f2d1930174272b6ed9b69150893d37e 100644 (file)
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -356,6 +356,18 @@ _func:
 @ CHECK: cmp.w r1, r4, ror #15         @ encoding: [0xb1,0xeb,0xf4,0x3f]
 
 
+@------------------------------------------------------------------------------
+@ DBG
+@------------------------------------------------------------------------------
+        dbg #5
+        dbg #0
+        dbg #15
+
+@ CHECK: dbg   #5                      @ encoding: [0xaf,0xf3,0xf5,0x80]
+@ CHECK: dbg   #0                      @ encoding: [0xaf,0xf3,0xf0,0x80]
+@ CHECK: dbg   #15                     @ encoding: [0xaf,0xf3,0xff,0x80]
+
+
 @------------------------------------------------------------------------------
 @ IT
 @------------------------------------------------------------------------------