Hi!
On unsigned_char targets, the cast stmt to unsigned char is obviously
not needed (and shouldn't be there). But it doesn't hurt to test
the rest also on targets where char is unsigned.
Tested on x86_64-linux and with cross to powerpc64le-linux, committed
to trunk.
2021-03-10 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/99305
PR testsuite/99498
* g++.dg/opt/pr99305.C: Don't expect cast to unsigned char on
unsigned_char effective targets.
--- gcc/testsuite/g++.dg/opt/pr99305.C.jj 2021-03-09 19:13:03.359524234
+0100
+++ gcc/testsuite/g++.dg/opt/pr99305.C 2021-03-10 17:31:58.495527765 +0100
@@ -1,7 +1,7 @@
// PR tree-optimization/99305
// { dg-do compile }
// { dg-options "-O3 -fno-ipa-icf -fdump-tree-optimized" }
-// { dg-final { scan-tree-dump-times " = \\\(unsigned char\\\)
c_\[0-9]*\\\(D\\\);" 3 "optimized" } }
+// { dg-final { scan-tree-dump-times " = \\\(unsigned char\\\)
c_\[0-9]*\\\(D\\\);" 3 "optimized" { target { ! unsigned_char } } } }
// { dg-final { scan-tree-dump-times " = \[^\n\r]* \\+ \[0-9]*;" 3 "optimized"
} }
// { dg-final { scan-tree-dump-times " = \[^\n\r]* <= 9;" 3 "optimized" } }
// { dg-final { scan-tree-dump-not "if \\\(c_\[0-9]*\\\(D\\\) \[!=]= 0\\\)"
"optimized" } }
Jakub
