diff options
| -rw-r--r-- | gcc/config/i386/i386.md | 9 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr103611-1.c | 30 |
2 files changed, 39 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 9d7d116..f6d9c4b 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -10542,6 +10542,15 @@ (match_dup 2)) 0)) (clobber (reg:CC FLAGS_REG))])] { + /* Handle the case where INTVAL (operands[2]) == 0. */ + if (operands[2] == const0_rtx) + { + if (!rtx_equal_p (operands[0], operands[1])) + emit_move_insn (operands[0], operands[1]); + else + emit_note (NOTE_INSN_DELETED); + DONE; + } operands[0] = gen_lowpart (SImode, operands[0]); operands[1] = gen_lowpart (SImode, operands[1]); operands[2] = gen_int_mode (INTVAL (operands[2]) >> 8, QImode); diff --git a/gcc/testsuite/gcc.target/i386/pr103611-1.c b/gcc/testsuite/gcc.target/i386/pr103611-1.c new file mode 100644 index 0000000..7d8ac9d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr103611-1.c @@ -0,0 +1,30 @@ +/* { dg-do compile { target ia32 } } */ +/* { dg-options "-O2 -msse4" } */ +typedef int __v4si __attribute__ ((__vector_size__ (16))); + +long long ior_1(__v4si v) { + unsigned int loVal = (unsigned int)v[0]; + unsigned int hiVal = (unsigned int)v[1]; + return (long long)(loVal) | ((long long)(hiVal) << 32); +} + +long long ior_2(__v4si v) { + unsigned int loVal = (unsigned int)v[2]; + unsigned int hiVal = (unsigned int)v[3]; + return (long long)(loVal) | ((long long)(hiVal) << 32); +} + +long long xor_1(__v4si v) { + unsigned int loVal = (unsigned int)v[0]; + unsigned int hiVal = (unsigned int)v[1]; + return (long long)(loVal) ^ ((long long)(hiVal) << 32); +} + +long long xor_2(__v4si v) { + unsigned int loVal = (unsigned int)v[2]; + unsigned int hiVal = (unsigned int)v[3]; + return (long long)(loVal) ^ ((long long)(hiVal) << 32); +} +/* { dg-final { scan-assembler-not "\torb\t\\\$0," } } */ +/* { dg-final { scan-assembler-not "\txorb\t\\\$0," } } */ + |