[llvm] r262372 - [NVPTX] Nix hack used to emit '{' and '}' for NVPTX calls.

[Justin Lebar via llvm-commits]

Author: jlebar
Date: Tue Mar  1 13:24:00 2016
New Revision: 262372

URL: http://llvm.org/viewvc/llvm-project?rev=262372&view=rev
Log:
[NVPTX] Nix hack used to emit '{' and '}' for NVPTX calls.

Summary: Tablegen understands backslash as an escape char; that's sufficient.

Reviewers: jholewinski

Subscribers: llvm-commits, tra, jholewinski

Differential Revision: http://reviews.llvm.org/D17432

Modified:
    llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td

Modified: llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td?rev=262372&r1=262371&r2=262372&view=diff
==============================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td (original)
+++ llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td Tue Mar  1 13:24:00 2016
@@ -2682,20 +2682,14 @@ def : Pat<(call texternalsym:$dst), (CAL
 class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
    : NVPTXInst<outs, ins, asmstr, pattern>;
 
-// @TODO: We use some tricks here to emit curly braces.  Can we clean this up
-// a bit without TableGen modifications?
 def Callseq_Start :
   NVPTXInst<(outs), (ins i32imm:$amt),
-            "// Callseq Start $amt\n"
-            "\t{{\n"
-            "\t.reg .b32 temp_param_reg;\n"
-            "\t// <end>}}",
+            "\\{ // callseq $amt\n"
+            "\t.reg .b32 temp_param_reg;",
            [(callseq_start timm:$amt)]>;
 def Callseq_End :
   NVPTXInst<(outs), (ins i32imm:$amt1, i32imm:$amt2),
-            "\n"
-            "\t//{{\n"
-            "\t}}// Callseq End $amt1",
+            "\\} // callseq $amt1",
             [(callseq_end timm:$amt1, timm:$amt2)]>;
 
 // trap instruction