re PR lto/60635 (ICE when mixing C and Fortran lto1: error: use operand missing for stmt)

2014-03-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/60635
	* gimplify-me.c (gimple_regimplify_operands): Update the
	re-gimplifed stmt.

	* gfortran.dg/lto/pr60635_0.f90: New testcase.
	* gfortran.dg/lto/pr60635_1.c: Likewise.

From-SVN: r208811

gcc/ChangeLog

+2014-03-25  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/60635
+	* gimplify-me.c (gimple_regimplify_operands): Update the
+	re-gimplifed stmt.
+
 2014-03-25  Martin Jambor  <mjambor@suse.cz>
 
 	PR ipa/59176

gcc/gimplify-me.c

@@ -315,6 +315,8 @@ gimple_regimplify_operands (gimple stmt, gimple_stmt_iterator *gsi_p)
     gsi_insert_after (gsi_p, post_stmt, GSI_NEW_STMT);
 
   pop_gimplify_context (NULL);
+
+  update_stmt (stmt);
 }
 
 

gcc/testsuite/ChangeLog

+2014-03-25  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/60635
+	* gfortran.dg/lto/pr60635_0.f90: New testcase.
+	* gfortran.dg/lto/pr60635_1.c: Likewise.
+
 2014-03-24  Adam Butcher  <adam@jessamine.co.uk>
 
 	PR c++/60627

gcc/testsuite/gfortran.dg/lto/pr60635_0.f90

+! { dg-lto-do link }
+program test
+  use iso_fortran_env
+
+  interface
+    integer(int16) function bigendc16(x) bind(C)
+      import
+      integer(int16), intent(in) :: x
+    end function
+  end interface
+  
+  integer(int16) :: x16 = 12345
+  x16 = bigendc16(x16)
+  print *,x16
+end program
+

gcc/testsuite/gfortran.dg/lto/pr60635_1.c

+#include <stdint.h>
+#include <stdbool.h>
+
+static bool littleendian=true;
+
+uint16_t bigendc16(union{uint16_t * n;uint8_t* b;}x){
+
+    if (!littleendian) return *x.n;
+
+    uint16_t res = ((uint16_t)(x.b[1])<<0) |
+	((uint16_t)(x.b[0])<<8);
+    return res;
+}
+