cxx_pretty_printer::multiplicative_expression didn't handle RDIV_EXPR, so when
we tried to print a RDIV_EXPR, we printed it as a pm-expression. That led to
printing it as a cast-expression. That led to printing it as a
primary-expression. That led to printing it as a multiplicative expression.
That led to printing it as a pm-expression. That led to printing it as a
cast-expression. That led to printing it as a primary-expression. That led
to... a crash.
Bootstrapped/regtested on x86_64-linux, ok for trunk?
2018-03-23 Marek Polacek <pola...@redhat.com>
PR c++/85045
* cxx-pretty-print.c (cxx_pretty_printer::multiplicative_expression):
Handle RDIV_EXPR.
* g++.dg/cpp0x/Wnarrowing5.C: New test.
diff --git gcc/cp/cxx-pretty-print.c gcc/cp/cxx-pretty-print.c
index ca99997f5e1..8527a326c57 100644
--- gcc/cp/cxx-pretty-print.c
+++ gcc/cp/cxx-pretty-print.c
@@ -899,11 +899,12 @@ cxx_pretty_printer::multiplicative_expression (tree e)
case MULT_EXPR:
case TRUNC_DIV_EXPR:
case TRUNC_MOD_EXPR:
+ case RDIV_EXPR:
multiplicative_expression (TREE_OPERAND (e, 0));
pp_space (this);
if (code == MULT_EXPR)
pp_star (this);
- else if (code == TRUNC_DIV_EXPR)
+ else if (code == TRUNC_DIV_EXPR || code == RDIV_EXPR)
pp_slash (this);
else
pp_modulo (this);
diff --git gcc/testsuite/g++.dg/cpp0x/Wnarrowing5.C
gcc/testsuite/g++.dg/cpp0x/Wnarrowing5.C
index e69de29bb2d..9acdc6b0c91 100644
--- gcc/testsuite/g++.dg/cpp0x/Wnarrowing5.C
+++ gcc/testsuite/g++.dg/cpp0x/Wnarrowing5.C
@@ -0,0 +1,11 @@
+// PR c++/85045
+// { dg-do compile { target c++11 } }
+
+typedef struct tt {
+ unsigned short h;
+} tt;
+
+void mainScreen(float a)
+{
+ tt numlrect = {int(100/a)}; // { dg-error "narrowing conversion" }
+}
Marek
