IA MCU psABI support: testsuite

We run Intel MCU psABI tests on Linux/ia32 with -miamcu.  Since Intel
MCU psABI has a different calling convention, the only Linux libc function
allowed is "abort".

asm-support.S contains some support functions as well as a subset of
soft-fp, which is written in assembly with x87 instructions, to provide
intrinsics needed by -miamcu so that Intel MCU psABI tests can run on
Linux.

	* gcc.target/i386/iamcu/abi-iamcu.exp: New file.
	* gcc.target/i386/iamcu/args.h: Likewise.
	* gcc.target/i386/iamcu/asm-support.S: Likewise.
	* gcc.target/i386/iamcu/defines.h: Likewise.
	* gcc.target/i386/iamcu/macros.h: Likewise.
	* gcc.target/i386/iamcu/test_3_element_struct_and_unions.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_64bit_returning.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_alignment.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_array_size_and_align.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_returning.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_sizes.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_struct_size_and_align.c: Likewise.
	* gcc.target/i386/iamcu/test_basic_union_size_and_align.c: Likewise.
	* gcc.target/i386/iamcu/test_bitfields.c: Likewise.
	* gcc.target/i386/iamcu/test_complex_returning.c: Likewise.
	* gcc.target/i386/iamcu/test_passing_floats.c: Likewise.
	* gcc.target/i386/iamcu/test_passing_integers.c: Likewise.
	* gcc.target/i386/iamcu/test_passing_structs.c: Likewise.
	* gcc.target/i386/iamcu/test_passing_structs_and_unions.c: Likewise.
	* gcc.target/i386/iamcu/test_passing_unions.c: Likewise.
	* gcc.target/i386/iamcu/test_struct_returning.c: Likewise.
	* gcc.target/i386/iamcu/test_varargs.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225199 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 302 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/iamcu/asm-support.S b/gcc/testsuite/gcc.target/i386/iamcu/asm-support.S
new file mode 100644
index 00000000000..b4a4a140e54
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/iamcu/asm-support.S
@@ -0,0 +1,302 @@
+	.comm	callthis,4,4
+	.comm	eax,4,4
+	.comm	ebx,4,4
+	.comm	ecx,4,4
+	.comm	edx,4,4
+	.comm	esi,4,4
+	.comm	edi,4,4
+	.comm	esp,4,4
+	.comm	ebp,4,4
+	.comm	sret_eax,4,4
+	.comm   volatile_var,4,4
+
+	.text
+	.p2align 4,,15
+.globl snapshot
+	.type	snapshot, @function
+snapshot:
+	movl	%eax, eax
+	movl	%ebx, ebx
+	movl	%ecx, ecx
+	movl	%edx, edx
+	movl	%edi, edi
+	movl	%esi, esi
+	movl	%ebp, ebp
+	movl	%esp, esp
+	jmp	*callthis
+	.size	snapshot, .-snapshot
+
+	.p2align 4,,15
+.globl snapshot_ret
+	.type	snapshot_ret, @function
+snapshot_ret:
+	movl	%eax, sret_eax
+	call	*callthis
+	movl	%eax, eax
+	movl	%edx, edx
+	ret
+	.size	snapshot_ret, .-snapshot_ret
+
+	.p2align 4,,15
+	.globl	__nesf2
+	.type	__nesf2, @function
+__nesf2:
+	.cfi_startproc
+	subl	$4, %esp
+	.cfi_def_cfa_offset 8
+	movl	%eax, (%esp)
+	movl	$1, %eax
+	fildl	(%esp)
+	movl	%edx, (%esp)
+	xorl	%edx, %edx
+	fildl	(%esp)
+	fucomip	%st(1), %st
+	fstp	%st(0)
+	setp	%dl
+	cmove	%edx, %eax
+	addl	$4, %esp
+	.cfi_def_cfa_offset 4
+	ret
+	.cfi_endproc
+	.size	__nesf2, .-__nesf2
+
+	.p2align 4,,15
+	.globl	__nedf2
+	.type	__nedf2, @function
+__nedf2:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	andl	$-8, %esp
+	subl	$8, %esp
+	movl	%eax, (%esp)
+	movl	$1, %eax
+	movl	%edx, 4(%esp)
+	xorl	%edx, %edx
+	fildq	(%esp)
+	fildq	8(%ebp)
+	fucomip	%st(1), %st
+	fstp	%st(0)
+	setp	%dl
+	cmove	%edx, %eax
+	leave
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+	.cfi_endproc
+	.size	__nedf2, .-__nedf2
+
+	.p2align 4,,15
+	.globl	__addsf3
+	.type	__addsf3, @function
+__addsf3:
+	.cfi_startproc
+	subl	$4, %esp
+	.cfi_def_cfa_offset 8
+	movl	%eax, (%esp)
+	flds	(%esp)
+	movl	%edx, (%esp)
+	flds	(%esp)
+	faddp	%st, %st(1)
+	fstps	(%esp)
+	movl	(%esp), %eax
+	addl	$4, %esp
+	.cfi_def_cfa_offset 4
+	ret
+	.cfi_endproc
+	.size	__addsf3, .-__addsf3
+
+	.p2align 4,,15
+	.globl	__adddf3
+	.type	__adddf3, @function
+__adddf3:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	andl	$-8, %esp
+	subl	$8, %esp
+	movl	%eax, (%esp)
+	movl	%edx, 4(%esp)
+	fldl	(%esp)
+	faddl	8(%ebp)
+	fstpl	(%esp)
+	movl	(%esp), %eax
+	movl	4(%esp), %edx
+	leave
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+	.cfi_endproc
+	.size	__adddf3, .-__adddf3
+
+	.p2align 4,,15
+	.globl	__floatsisf
+	.type	__floatsisf, @function
+__floatsisf:
+	.cfi_startproc
+	subl	$4, %esp
+	.cfi_def_cfa_offset 8
+	movl	%eax, (%esp)
+	fildl	(%esp)
+	addl	$4, %esp
+	.cfi_def_cfa_offset 4
+	ret
+	.cfi_endproc
+	.size	__floatsisf, .-__floatsisf
+
+	.p2align 4,,15
+	.globl	__floatunsisf
+	.type	__floatunsisf, @function
+__floatunsisf:
+	.cfi_startproc
+	subl	$8, %esp
+	.cfi_def_cfa_offset 12
+	xorl	%edx, %edx
+	movl	%eax, (%esp)
+	movl	%edx, 4(%esp)
+	fildq	(%esp)
+	addl	$8, %esp
+	.cfi_def_cfa_offset 4
+	ret
+	.cfi_endproc
+	.size	__floatunsisf, .-__floatunsisf
+
+	.globl	__extendsfdf2
+	.type	__extendsfdf2, @function
+__extendsfdf2:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	andl	$-8, %esp
+	subl	$8, %esp
+	movl	%eax, (%esp)
+	flds	(%esp)
+	fstpl	(%esp)
+	movl	(%esp), %eax
+	movl	4(%esp), %edx
+	leave
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+	.cfi_endproc
+	.size	__extendsfdf2, .-__extendsfdf2
+
+	.p2align 4,,15
+	.globl	__truncdfsf2
+	.type	__truncdfsf2, @function
+__truncdfsf2:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	andl	$-8, %esp
+	subl	$12, %esp
+	movl	%eax, (%esp)
+	movl	%edx, 4(%esp)
+	fldl	(%esp)
+	fstps	(%esp)
+	movl	(%esp), %eax
+	leave
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+	.cfi_endproc
+	.size	__truncdfsf2, .-__truncdfsf2
+
+	.p2align 4,,15
+	.globl	iamcu_memset
+	.type	iamcu_memset, @function
+iamcu_memset:
+	.cfi_startproc
+	pushl	%edi
+	.cfi_adjust_cfa_offset 4
+	.cfi_rel_offset %edi, 0
+	movl	%eax, %edi
+	movzbl	%dl, %eax
+	movl	%edi, %edx
+	rep stosb
+	movl	%edx, %eax
+	popl	%edi
+	.cfi_adjust_cfa_offset -4
+	.cfi_restore %edi
+	ret
+	.cfi_endproc
+	.size	iamcu_memset, .-iamcu_memset
+
+	.p2align 4,,15
+	.globl	iamcu_noprintf
+	.type	iamcu_noprintf, @function
+iamcu_noprintf:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	cmpl	$-1414676753, 8(%ebp)
+	fldl	16(%ebp)
+	fldl	28(%ebp)
+	jne	7f
+	cmpl	$256, 12(%ebp)
+	jne	8f
+	flds	.LCiamcu_noprintf0
+	movl	$1, %eax
+	fucomip	%st(2), %st
+	fstp	%st(1)
+	setp	%dl
+	cmovne	%eax, %edx
+	testb	%dl, %dl
+	jne	9f
+	cmpl	$-1146241297, 24(%ebp)
+	jne	10f
+	flds	.LCiamcu_noprintf1
+	fucomip	%st(1), %st
+	fstp	%st(0)
+	setp	%dl
+	cmove	%edx, %eax
+	testb	%al, %al
+	jne	2f
+	cmpl	$259, 36(%ebp)
+	jne	2f
+	popl	%ebp
+	.cfi_remember_state
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+7:
+	.cfi_restore_state
+	fstp	%st(0)
+	fstp	%st(0)
+	jmp	2f
+8:
+	fstp	%st(0)
+	fstp	%st(0)
+	.p2align 4,,3
+	jmp	2f
+9:
+	fstp	%st(0)
+	jmp	2f
+10:
+	fstp	%st(0)
+2:
+	call	abort
+	.cfi_endproc
+	.size	iamcu_noprintf, .-iamcu_noprintf
+	.section	.rodata.cst4,"aM",@progbits,4
+	.align 4
+.LCiamcu_noprintf0:
+	.long	1132494848
+	.align 4
+.LCiamcu_noprintf1:
+	.long	1132527616