1 files changed, 56 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/index_2.f90 b/gcc/testsuite/gfortran.dg/index_2.f90
new file mode 100644
index 000000000..74845b966
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/index_2.f90
@@ -0,0 +1,56 @@
+! { dg-do run }
+! { dg-options "-fdump-tree-original" }
+! PR fortran/36462
+!
+  implicit none
+  character(len=10,kind=1) string1
+  character(len=10,kind=4) string4
+  string1 = 'ABCDEEDCBA'
+  string4 = 'ABCDEEDCBA'
+
+  if(index(string1,1_'A') /= 1) call abort()
+  if(index(string4,4_'A') /= 1) call abort()
+  if(index(string1,1_'A',kind=4) /= 1_4) call abort()
+  if(index(string4,4_'A',kind=4) /= 1_4) call abort()
+  if(index(string1,1_'A',kind=1) /= 1_1) call abort()
+  if(index(string4,4_'A',kind=1) /= 1_1) call abort()
+
+  if(index(string1,1_'A',back=.true.) /= 10) call abort()
+  if(index(string4,4_'A',back=.true.) /= 10) call abort()
+  if(index(string1,1_'A',kind=4,back=.true.) /= 10_4) call abort()
+  if(index(string4,4_'A',kind=4,back=.true.) /= 10_4) call abort()
+  if(index(string1,1_'A',kind=1,back=.true.) /= 10_1) call abort()
+  if(index(string4,4_'A',kind=1,back=.true.) /= 10_1) call abort()
+
+  if(index(string1,1_'A',back=.false.) /= 1) call abort()
+  if(index(string4,4_'A',back=.false.) /= 1) call abort()
+  if(index(string1,1_'A',kind=4,back=.false.) /= 1_4) call abort()
+  if(index(string4,4_'A',kind=4,back=.false.) /= 1_4) call abort()
+  if(index(string1,1_'A',kind=1,back=.false.) /= 1_1) call abort()
+  if(index(string4,4_'A',kind=1,back=.false.) /= 1_1) call abort()
+
+  if(scan(string1,1_'A') /= 1) call abort()
+  if(scan(string4,4_'A') /= 1) call abort()
+  if(scan(string1,1_'A',kind=4) /= 1_4) call abort()
+  if(scan(string4,4_'A',kind=4) /= 1_4) call abort()
+  if(scan(string1,1_'A',kind=1) /= 1_1) call abort()
+  if(scan(string4,4_'A',kind=1) /= 1_1) call abort()
+
+  if(scan(string1,1_'A',back=.true.) /= 10) call abort()
+  if(scan(string4,4_'A',back=.true.) /= 10) call abort()
+  if(scan(string1,1_'A',kind=4,back=.true.) /= 10_4) call abort()
+  if(scan(string4,4_'A',kind=4,back=.true.) /= 10_4) call abort()
+  if(scan(string1,1_'A',kind=1,back=.true.) /= 10_1) call abort()
+  if(scan(string4,4_'A',kind=1,back=.true.) /= 10_1) call abort()
+
+  if(scan(string1,1_'A',back=.false.) /= 1) call abort()
+  if(scan(string4,4_'A',back=.false.) /= 1) call abort()
+  if(scan(string1,1_'A',kind=4,back=.false.) /= 1_4) call abort()
+  if(scan(string4,4_'A',kind=4,back=.false.) /= 1_4) call abort()
+  if(scan(string1,1_'A',kind=1,back=.false.) /= 1_1) call abort()
+  if(scan(string4,4_'A',kind=1,back=.false.) /= 1_1) call abort()
+  end
+
+! { dg-final { scan-tree-dump-times "if ..integer.kind=1.. _gfortran_string_index" 6 "original" } }
+! { dg-final { scan-tree-dump-times "if ..integer.kind=1.. _gfortran_string_scan" 6 "original" } }
+! { dg-final { cleanup-tree-dump "original" } }