MIR Parser: Add support for quoted named global value operands.

This commit extends the machine instruction lexer and implements support for
the quoted global value tokens. With this change the syntax for the global value
identifier tokens becomes identical to the syntax for the global identifier
tokens from the LLVM's assembly language.

Reviewers: Duncan P. N. Exon Smith
llvm-svn: 242702

2 files changed, 43 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/MIR/X86/global-value-operands.mir b/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
index 3e4710d33f4..775a01ba003 100644
--- a/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
+++ b/llvm/test/CodeGen/MIR/X86/global-value-operands.mir
@@ -34,6 +34,14 @@
     ret i32 %b
   }
 
+  @"\01Hello@$%09 \\ World," = external global i32
+
+  define i32 @test2() {
+  entry:
+    %a = load i32, i32* @"\01Hello@$%09 \\ World,"
+    ret i32 %a
+  }
+
 ...
 ---
 # CHECK: name: inc
@@ -81,3 +89,14 @@ body:
       - 'MOV32mr killed %rcx, 1, _, 0, _, %eax'
       - 'RETQ %eax'
 ...
+---
+name:            test2
+body:
+  - id:              0
+    name:            entry
+    instructions:
+      # CHECK: , @"\01Hello@$%09 \5C World,",
+      - '%rax = MOV64rm %rip, 1, _, @"\01Hello@$%09 \\ World,", _'
+      - '%eax = MOV32rm killed %rax, 1, _, 0, _'
+      - 'RETQ %eax'
+...
diff --git a/llvm/test/CodeGen/MIR/X86/missing-closing-quote.mir b/llvm/test/CodeGen/MIR/X86/missing-closing-quote.mir
new file mode 100644
index 00000000000..f188d3ad8cf
--- /dev/null
+++ b/llvm/test/CodeGen/MIR/X86/missing-closing-quote.mir
@@ -0,0 +1,24 @@
+# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
+
+--- |
+
+  @"quoted name" = external global i32
+
+  define i32 @test() {
+  entry:
+    %a = load i32, i32* @"quoted name"
+    ret i32 %a
+  }
+
+...
+---
+name:            test
+body:
+  - id:          0
+    name:        entry
+    instructions:
+      # CHECK: [[@LINE+1]]:53: end of machine instruction reached before the closing '"'
+      - '%rax = MOV64rm %rip, 1, _, @"quoted name, _'
+      - '%eax = MOV32rm killed %rax, 1, _, 0, _'
+      - 'RETQ %eax'
+...