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; +} +