Add test for generated assembly

We weren't testing for this and it was broken

test cases/common/135 generated assembly/copy.py

@@ -0,0 +1,6 @@
+#!/usr/bin/env python
+
+import sys
+import shutil
+
+shutil.copyfile(sys.argv[1], sys.argv[2])

test cases/common/135 generated assembly/main.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+unsigned square_unsigned (unsigned a);
+
+int
+main (int argc, char * argv[])
+{
+  unsigned int ret = square_unsigned (2);
+  if (ret != 4) {
+    printf("Got %u instead of 4\n", ret);
+    return 1;
+  }
+  return 0;
+}

test cases/common/135 generated assembly/meson.build

@@ -0,0 +1,39 @@
+project('generated assembly', 'c')
+
+cc = meson.get_compiler('c')
+
+if cc.get_id() == 'msvc'
+  error('MESON_SKIP_TEST: assembly files cannot be compiled directly by MSVC')
+endif
+
+cpu = host_machine.cpu_family()
+supported_cpus = ['arm', 'x86', 'x86_64']
+
+if not supported_cpus.contains(cpu)
+  error('MESON_SKIP_TEST: unsupported cpu family: ' + cpu)
+endif
+
+if cc.symbols_have_underscore_prefix()
+  add_project_arguments('-DMESON_TEST__UNDERSCORE_SYMBOL', language : 'c')
+endif
+
+copy = find_program('copy.py')
+output = 'square-@0@.S'.format(cpu)
+input = output + '.in'
+
+copygen = generator(copy,
+  arguments : ['@INPUT@', '@OUTPUT@'],
+  output : '@BASENAME@')
+
+l = shared_library('square-gen', copygen.process(input))
+
+test('square-gen-test', executable('square-gen-test', 'main.c', link_with : l))
+
+copyct = custom_target('square',
+  input : input,
+  output : output,
+  command : [copy, '@INPUT@', '@OUTPUT@'])
+
+l = shared_library('square-ct', copyct)
+
+test('square-ct-test', executable('square-ct-test', 'main.c', link_with : l))

test cases/common/135 generated assembly/square-arm.S.in

@@ -0,0 +1,12 @@
+#include "symbol-underscore.h"
+
+.text
+.globl SYMBOL_NAME(square_unsigned)
+#ifndef __APPLE__
+.type	square_unsigned,%function
+#endif
+
+SYMBOL_NAME(square_unsigned):
+	mul	r1, r0, r0
+	mov	r0, r1
+	mov	pc, lr

test cases/common/135 generated assembly/square-x86.S.in

@@ -0,0 +1,33 @@
+#include "symbol-underscore.h"
+
+#ifdef _MSC_VER
+
+.386
+.MODEL FLAT, C
+
+PUBLIC square_unsigned
+_TEXT   SEGMENT
+
+square_unsigned PROC var1:DWORD
+        mov     eax, var1
+	imul	eax, eax
+	ret
+square_unsigned ENDP
+
+_TEXT   ENDS
+END
+
+#else
+
+.text
+.globl SYMBOL_NAME(square_unsigned)
+# ifndef __APPLE__
+.type  square_unsigned,@function
+# endif
+
+SYMBOL_NAME(square_unsigned):
+	movl	4(%esp), %eax
+	imull	%eax, %eax
+	retl
+
+#endif

test cases/common/135 generated assembly/square-x86_64.S.in

@@ -0,0 +1,39 @@
+#include "symbol-underscore.h"
+
+#include "symbol-underscore.h"
+
+#ifdef _MSC_VER /* MSVC on Windows */
+
+PUBLIC SYMBOL_NAME(square_unsigned)
+_TEXT   SEGMENT
+
+SYMBOL_NAME(square_unsigned) PROC
+        mov     eax, ecx
+	imul	eax, eax
+	ret
+SYMBOL_NAME(square_unsigned) ENDP
+
+_TEXT   ENDS
+END
+
+#else
+
+.text
+.globl SYMBOL_NAME(square_unsigned)
+# ifndef __APPLE__
+.type  square_unsigned,@function
+# endif
+
+# ifdef _WIN32 /* MinGW */
+SYMBOL_NAME(square_unsigned):
+	imull	%ecx, %ecx
+	movl	%ecx, %eax
+	retq
+# else /* Linux and OS X */
+SYMBOL_NAME(square_unsigned):
+	imull	%edi, %edi
+	movl	%edi, %eax
+	retq
+# endif
+
+#endif

test cases/common/135 generated assembly/symbol-underscore.h

@@ -0,0 +1,5 @@
+#if defined(MESON_TEST__UNDERSCORE_SYMBOL)
+# define SYMBOL_NAME(name) _##name
+#else
+# define SYMBOL_NAME(name) name
+#endif