diff options
| -rw-r--r-- | gcc/config/i386/i386.c | 19 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pieces-strcpy-1.c | 19 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pieces-strcpy-2.c | 19 |
3 files changed, 57 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 60dc16052e0..00a15e028d8 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -2877,6 +2877,12 @@ timode_scalar_to_vector_candidate_p (rtx_insn *insn) case REG: return true; + case CONST_WIDE_INT: + /* For store from 128-bit constant, memory must be aligned + or unaligned store is optimal. */ + return (!misaligned_operand (dst, TImode) + || TARGET_SSE_UNALIGNED_STORE_OPTIMAL); + case CONST_INT: return standard_sse_constant_p (src, TImode); } @@ -3868,6 +3874,19 @@ timode_scalar_chain::convert_insn (rtx_insn *insn) PUT_MODE (src, V1TImode); break; + case CONST_WIDE_INT: + if (NONDEBUG_INSN_P (insn)) + { + /* Since there are no instructions to store 128-bit constant, + temporary register usage is required. */ + rtx tmp = gen_reg_rtx (V1TImode); + src = gen_rtx_CONST_VECTOR (V1TImode, gen_rtvec (1, src)); + src = validize_mem (force_const_mem (V1TImode, src)); + emit_conversion_insns (gen_rtx_SET (dst, tmp), insn); + dst = tmp; + } + break; + case CONST_INT: switch (standard_sse_constant_p (src, TImode)) { diff --git a/gcc/testsuite/gcc.target/i386/pieces-strcpy-1.c b/gcc/testsuite/gcc.target/i386/pieces-strcpy-1.c new file mode 100644 index 00000000000..dd77a2cccda --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pieces-strcpy-1.c @@ -0,0 +1,19 @@ +/* { dg-do compile { target { ! ia32 } } } */ +/* { dg-options "-O2 -mno-avx -msse2 -mtune=generic" } */ + +extern char *strcpy (char *, const char *); + +void +foo (char *s) +{ + strcpy (s, + "1234567890abcdef123456abcdef5678123456abcdef567abcdef678" + "1234567"); +} + +/* { dg-final { scan-assembler-times "movdqa\[ \\t\]+\[^\n\]*%xmm" 4 } } */ +/* { dg-final { scan-assembler-times "movups\[ \\t\]+\[^\n\]*%xmm" 4 } } */ +/* No need to dynamically realign the stack here. */ +/* { dg-final { scan-assembler-not "and\[^\n\r]*%\[re\]sp" } } */ +/* Nor use a frame pointer. */ +/* { dg-final { scan-assembler-not "%\[re\]bp" } } */ diff --git a/gcc/testsuite/gcc.target/i386/pieces-strcpy-2.c b/gcc/testsuite/gcc.target/i386/pieces-strcpy-2.c new file mode 100644 index 00000000000..f597e5d7c95 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pieces-strcpy-2.c @@ -0,0 +1,19 @@ +/* { dg-do compile { target { ! ia32 } } } */ +/* { dg-options "-O2 -mno-avx2 -mavx -mtune=sandybridge" } */ + +extern char *strcpy (char *, const char *); + +void +foo (char *s) +{ + strcpy (s, + "1234567890abcdef123456abcdef5678123456abcdef567abcdef678" + "1234567"); +} + +/* { dg-final { scan-assembler-times "vmovdqa\[ \\t\]+\[^\n\]*%xmm" 4 } } */ +/* { dg-final { scan-assembler-times "vmovups\[ \\t\]+\[^\n\]*%xmm" 4 } } */ +/* No need to dynamically realign the stack here. */ +/* { dg-final { scan-assembler-not "and\[^\n\r]*%\[re\]sp" } } */ +/* Nor use a frame pointer. */ +/* { dg-final { scan-assembler-not "%\[re\]bp" } } */ |