1 files changed, 93 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/memset-pr120683-4.c b/gcc/testsuite/gcc.target/i386/memset-pr120683-4.c
new file mode 100644
index 0000000..dc3aa57b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/memset-pr120683-4.c
@@ -0,0 +1,93 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=x86-64 -fasynchronous-unwind-tables -fdwarf2-cfi-asm -mmemset-strategy=vector_loop:256:noalign,libcall:-1:noalign -minline-all-stringops" } */
+/* Keep labels and directives ('.cfi_startproc', '.cfi_endproc').  */
+/* { dg-final { check-function-bodies "**" "" "" { target lp64 } {^\t?\.} } } */
+
+/*
+**foo:
+**.LFB0:
+**	.cfi_startproc
+**	movabsq	\$289360691352306692, %rax
+**	movq	%rax, %xmm0
+**	punpcklqdq	%xmm0, %xmm0
+**	cmpq	\$64, %rsi
+**	jnb	.L2
+**	testb	\$32, %sil
+**	jne	.L19
+**	testb	\$16, %sil
+**	jne	.L20
+**	testb	\$8, %sil
+**	jne	.L21
+**	testb	\$4, %sil
+**	jne	.L22
+**	testq	%rsi, %rsi
+**	jne	.L23
+**.L1:
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L2:
+**	movups	%xmm0, -64\(%rdi,%rsi\)
+**	movups	%xmm0, -48\(%rdi,%rsi\)
+**	movups	%xmm0, -32\(%rdi,%rsi\)
+**	movups	%xmm0, -16\(%rdi,%rsi\)
+**	subq	\$1, %rsi
+**	cmpq	\$64, %rsi
+**	jb	.L1
+**	andq	\$-64, %rsi
+**	xorl	%eax, %eax
+**.L9:
+**	movups	%xmm0, \(%rdi,%rax\)
+**	movups	%xmm0, 16\(%rdi,%rax\)
+**	movups	%xmm0, 32\(%rdi,%rax\)
+**	movups	%xmm0, 48\(%rdi,%rax\)
+**	addq	\$64, %rax
+**	cmpq	%rsi, %rax
+**	jb	.L9
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L23:
+**	movb	\$4, \(%rdi\)
+**	testb	\$2, %sil
+**	je	.L1
+**	movl	\$1028, %eax
+**	movw	%ax, -2\(%rdi,%rsi\)
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L19:
+**	movups	%xmm0, \(%rdi\)
+**	movups	%xmm0, 16\(%rdi\)
+**	movups	%xmm0, -32\(%rdi,%rsi\)
+**	movups	%xmm0, -16\(%rdi,%rsi\)
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L20:
+**	movups	%xmm0, \(%rdi\)
+**	movups	%xmm0, -16\(%rdi,%rsi\)
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L21:
+**	movq	%rax, \(%rdi\)
+**	movq	%rax, -8\(%rdi,%rsi\)
+**	ret
+**	.p2align 4,,10
+**	.p2align 3
+**.L22:
+**	movl	\$67372036, \(%rdi\)
+**	movl	\$67372036, -4\(%rdi,%rsi\)
+**	ret
+**	.cfi_endproc
+**...
+*/
+
+void
+foo (char *dest, __SIZE_TYPE__ n)
+{
+  __builtin_memset (dest, 4, n);
+}
+
+/* { dg-final { scan-assembler-not "rep stos" } } */