[gcc/devel/rust/master] Optimize HIR::ReferencePattern

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:595eacc9931b2e4cee22c052eca85059358a6961

commit 595eacc9931b2e4cee22c052eca85059358a6961
Author: Owen Avery <powerboat9.gamer@gmail.com>
Date:   Thu Feb 2 11:38:44 2023 -0500

    Optimize HIR::ReferencePattern
    
    gcc/rust/ChangeLog:
    
            * hir/tree/rust-hir-pattern.h
            (class ReferencePattern): Remove has_two_amps field.
            * hir/tree/rust-hir-full-test.cc
            (ReferencePattern::as_string): Remove usage of ReferencePattern::has_two_amps.
    
    Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Diff:
---
 gcc/rust/hir/tree/rust-hir-full-test.cc |  5 -----
 gcc/rust/hir/tree/rust-hir-pattern.h    | 13 +++++--------
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/gcc/rust/hir/tree/rust-hir-full-test.cc b/gcc/rust/hir/tree/rust-hir-full-test.cc
index a36e0f3d68a..cd09249ecd4 100644
--- a/gcc/rust/hir/tree/rust-hir-full-test.cc
+++ b/gcc/rust/hir/tree/rust-hir-full-test.cc
@@ -2583,11 +2583,6 @@ ReferencePattern::as_string () const
 {
   std::string str ("&");
 
-  if (has_two_amps)
-    {
-      str += "&";
-    }
-
   if (is_mut ())
     {
       str += "mut ";
diff --git a/gcc/rust/hir/tree/rust-hir-pattern.h b/gcc/rust/hir/tree/rust-hir-pattern.h
index d994e37c2a2..3eea4566291 100644
--- a/gcc/rust/hir/tree/rust-hir-pattern.h
+++ b/gcc/rust/hir/tree/rust-hir-pattern.h
@@ -424,7 +424,6 @@ protected:
 // HIR node for pattern based on dereferencing the pointers given
 class ReferencePattern : public Pattern
 {
-  bool has_two_amps;
   Mutability mut;
   std::unique_ptr<Pattern> pattern;
   Location locus;
@@ -435,16 +434,15 @@ public:
 
   ReferencePattern (Analysis::NodeMapping mappings,
 		    std::unique_ptr<Pattern> pattern, Mutability reference_mut,
-		    bool ref_has_two_amps, Location locus)
-    : has_two_amps (ref_has_two_amps), mut (reference_mut),
-      pattern (std::move (pattern)), locus (locus), mappings (mappings)
+		    Location locus)
+    : mut (reference_mut), pattern (std::move (pattern)), locus (locus),
+      mappings (mappings)
   {}
 
   // Copy constructor requires clone
   ReferencePattern (ReferencePattern const &other)
-    : has_two_amps (other.has_two_amps), mut (other.mut),
-      pattern (other.pattern->clone_pattern ()), locus (other.locus),
-      mappings (other.mappings)
+    : mut (other.mut), pattern (other.pattern->clone_pattern ()),
+      locus (other.locus), mappings (other.mappings)
   {}
 
   // Overload assignment operator to clone
@@ -452,7 +450,6 @@ public:
   {
     pattern = other.pattern->clone_pattern ();
     mut = other.mut;
-    has_two_amps = other.has_two_amps;
     locus = other.locus;
     mappings = other.mappings;