Hello,
The attached patch adds a few bswap32 test cases for SH.
Tested against rev 189175 with
make -k check RUNTESTFLAGS=sh.exp=pr53568-1.c --target_board=sh-sim
\{-m2/-ml,-m2/-mb,-m2a/-mb,-m2a-single/-mb,-m4/-ml,-m4/-mb,
-m4-single/-ml,-m4-single/-mb,-m4a-single/-ml,-m4a-single/-mb}
to make sure that the test case passes.
Cheers,
Oleg
testsuite/ChangeLog:
PR target/53568
* gcc.target/sh/pr53568-1.c: New.
Index: gcc/testsuite/gcc.target/sh/pr53568-1.c
===
--- gcc/testsuite/gcc.target/sh/pr53568-1.c (revision 0)
+++ gcc/testsuite/gcc.target/sh/pr53568-1.c (revision 0)
@@ -0,0 +1,82 @@
+/* Check that the bswap32 pattern is generated as swap.b and swap.w
+ instructions. */
+/* { dg-do compile { target sh*-*-* } } */
+/* { dg-options -O2 } */
+/* { dg-skip-if { sh*-*-* } { -m5*} { } } */
+/* { dg-final { scan-assembler-times swap.w 7 } } */
+/* { dg-final { scan-assembler-times swap.b 16 } } */
+/* { dg-final { scan-assembler-times extu.w 2 } } */
+/* { dg-final { scan-assembler-times mov 1 } } */
+/* { dg-final { scan-assembler-not {shll8|shlr8|shld|shad} } } */
+
+int
+test_func_00 (int a)
+{
+ /* 1x swap.w
+ 2x swap.b */
+ return __builtin_bswap32 (a);
+}
+
+unsigned int
+test_func_01 (unsigned int a)
+{
+ /* 1x swap.w
+ 2x swap.b */
+ return __builtin_bswap32 (a);
+}
+
+int
+test_func_02 (int a)
+{
+ /* 1x swap.w
+ 2x swap.b */
+ return (((a 0) 0xFF) 24)
+ | (((a 8) 0xFF) 16)
+ | (((a 16) 0xFF) 8)
+ | (((a 24) 0xFF) 0);
+}
+
+unsigned int
+test_func_03 (unsigned int a)
+{
+ /* 1x swap.w
+ 2x swap.b */
+ return (((a 0) 0xFF) 24)
+ | (((a 8) 0xFF) 16)
+ | (((a 16) 0xFF) 8)
+ | (((a 24) 0xFF) 0);
+}
+
+int
+test_func_04 (int a)
+{
+ /* 1x swap.b
+ 1x extu.w */
+ return __builtin_bswap32 (a) 16;
+}
+
+unsigned short
+test_func_05 (unsigned short a)
+{
+ /* 1x swap.b
+ 1x extu.w */
+ return __builtin_bswap32 (a) 16;
+}
+
+long long
+test_func_06 (long long a)
+{
+ /* 2x swap.w
+ 4x swap.b */
+ return __builtin_bswap64 (a);
+}
+
+long long
+test_func_07 (long long a)
+{
+ /* 1x swap.w
+ 2x swap.b
+ 1x mov #0,Rn */
+ return __builtin_bswap64 (a) 32;
+}
+
