From 5767d76f8f1ee56b68e794ccb65a720a8a3581c7 Mon Sep 17 00:00:00 2001
From: Iain Buclaw <ibuclaw@gcc.gnu.org>
Date: Sun, 16 Jun 2019 07:50:31 +0000
Subject: re PR d/90863 (ICE in StatementSemanticVisitor::visit, at
 d/dmd/statementsem.c:1992)

	PR d/90863
d/dmd: Merge upstream dmd 6e44734cc

Fixes segmentation fault in StatementSemanticVisitor::visit.

Reviewed-on: https://github.com/dlang/dmd/pull/10033

From-SVN: r272352
---
 gcc/d/dmd/MERGE          | 2 +-
 gcc/d/dmd/blockexit.c    | 2 ++
 gcc/d/dmd/statementsem.c | 4 ++--
 3 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'gcc/d')

diff --git a/gcc/d/dmd/MERGE b/gcc/d/dmd/MERGE
index 4111fc9..0620a5b 100644
--- a/gcc/d/dmd/MERGE
+++ b/gcc/d/dmd/MERGE
@@ -1,4 +1,4 @@
-7afcc60c30554e452eacdfbefc4951ebf601fccd
+6e44734ccbeb78252a52e129a67fefb313679948
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/dmd repository.
diff --git a/gcc/d/dmd/blockexit.c b/gcc/d/dmd/blockexit.c
index e9d3f10..c3b60b8 100644
--- a/gcc/d/dmd/blockexit.c
+++ b/gcc/d/dmd/blockexit.c
@@ -496,6 +496,8 @@ int blockExit(Statement *s, FuncDeclaration *func, bool mustNotThrow)
         }
     };
 
+    if (!s)
+        return BEfallthru;
     BlockExit be(func, mustNotThrow);
     s->accept(&be);
     return be.result;
diff --git a/gcc/d/dmd/statementsem.c b/gcc/d/dmd/statementsem.c
index 167836c..143864dc6 100644
--- a/gcc/d/dmd/statementsem.c
+++ b/gcc/d/dmd/statementsem.c
@@ -2035,7 +2035,7 @@ public:
         ss->_body = semantic(ss->_body, sc);
         sc->noctor--;
 
-        if (conditionError || ss->_body->isErrorStatement())
+        if (conditionError || (ss->_body && ss->_body->isErrorStatement()))
             goto Lerror;
 
         // Resolve any goto case's with exp
@@ -2111,7 +2111,7 @@ public:
         {
             ss->hasNoDefault = 1;
 
-            if (!ss->isFinal && !ss->_body->isErrorStatement())
+            if (!ss->isFinal && (!ss->_body || !ss->_body->isErrorStatement()))
                 ss->error("switch statement without a default; use 'final switch' or add 'default: assert(0);' or add 'default: break;'");
 
             // Generate runtime error if the default is hit
-- 
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