64bit long double tests

.gitignore

@@ -1,4 +1,5 @@
-build-aarch64-w64-mingw32/
+.vscode/
+build-*/
 code/
 downloads/
 *.exe

build.sh

@@ -15,7 +15,7 @@ BINUTILS_BRANCH=${BINUTILS_BRANCH:-woarm64}
 BINUTILS_VERSION=binutils-master
 
 GCC_REPO=https://github.com/ZacWalk/gcc-woarm64.git
-GCC_BRANCH=${GCC_BRANCH:-woarm64}
+GCC_BRANCH=${GCC_BRANCH:-long-double-64}
 # GCC_VERSION=gcc-12.2.0
 GCC_VERSION=gcc-master
 
@@ -32,7 +32,7 @@ MSYS2_CONFIG=1
 TARGET=$TARGET_ARCH-w64-mingw32
 # TARGET=$TARGET_ARCH-pc-cygwin
 BUILD_DIR=build-$TARGET
-PARALLEL_MAKE=-j6
+PARALLEL_MAKE=-j$(nproc)
 MPFR_VERSION=mpfr-4.1.0
 GMP_VERSION=gmp-6.2.1
 MPC_VERSION=mpc-1.2.1
@@ -173,7 +173,7 @@ build_mingw_headers()
 {
     echo "==== build mingw headers"
     cd $BUILD_DIR/mingw-headers
-    make
+    make $PARALLEL_MAKE
     make install
     cd ../..
     # Symlink for gcc
@@ -228,7 +228,7 @@ build_mingw_libs()
 {
     echo "==== build mingw libs"
     cd $BUILD_DIR/mingw
-    make
+    make $PARALLEL_MAKE
     make install
     cd ../..
 }

tests/build-tests.sh

@@ -1,22 +1,21 @@
-rm *.s *.dump *.gkd *.exe *.dll *.log
+rm -f *.s *.dump *.gkd *.exe *.dll *.log
 
 ~/cross/bin/aarch64-w64-mingw32-g++ -S test-bigdata.cpp -o test-bigdata.s -fdump-final-insns
 ~/cross/bin/aarch64-w64-mingw32-g++ -S test-throw.cpp -o test-throw.s -fdump-final-insns
-~/cross/bin/aarch64-w64-mingw32-g++ -S test-iostream.cpp -o test-iostream.cpp.s -fdump-final-insns
+~/cross/bin/aarch64-w64-mingw32-g++ -S test-iostream.cpp -o test-iostream.s -fdump-final-insns
 ~/cross/bin/aarch64-w64-mingw32-gcc -S test-math.c -o test-math.c.s -fdump-final-insns
-~/cross/bin/aarch64-w64-mingw32-gcc -S test-pdata.c -o test-pdata.s -fdump-final-insns
-~/cross/bin/aarch64-w64-mingw32-gcc -S test-struct.c -o test-struct.s -fdump-final-insns
+~/cross/bin/aarch64-w64-mingw32-gcc -S test-pdata.c -o test-pdata.c.s -fdump-final-insns
+~/cross/bin/aarch64-w64-mingw32-gcc -S test-struct.c -o test-struct.c.s -fdump-final-insns
 
 ~/cross/bin/aarch64-w64-mingw32-g++ -g test-bigdata.cpp -o test-bigdata.exe >> test-bigdata.log
 ~/cross/bin/aarch64-w64-mingw32-g++ -g test-throw.cpp -o test-throw.exe >> test-throw.log
 ~/cross/bin/aarch64-w64-mingw32-g++ -g test-iostream.cpp -o test-iostream.exe >> test-iostream.log
 ~/cross/bin/aarch64-w64-mingw32-gcc -g test-math.c -o test-math.c.exe >> test-math.c.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g test-pdata.c -ldbghelp -o test-pdata.exe >> test-pdata.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g test-struct.c -o test-struct.exe >> test-struct.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g test-math.c -o test-math.exe >> test-math.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g test-varargs.c -o test-varargs.exe >> test-varargs.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g test-sjlj.c -o test-sjlj.exe >> test-sjlj.log
-~/cross/bin/aarch64-w64-mingw32-gcc -g -fopenmp test-omp.c -o test-omp.exe >> test-omp.log
+~/cross/bin/aarch64-w64-mingw32-gcc -g test-pdata.c -ldbghelp -o test-pdata.c.exe >> test-pdata.c.log
+~/cross/bin/aarch64-w64-mingw32-gcc -g test-struct.c -o test-struct.c.exe >> test-struct.c.log
+~/cross/bin/aarch64-w64-mingw32-gcc -g test-varargs.c -o test-varargs.c.exe >> test-varargs.c.log
+~/cross/bin/aarch64-w64-mingw32-gcc -g test-sjlj.c -o test-sjlj.c.exe >> test-sjlj.c.log
+~/cross/bin/aarch64-w64-mingw32-gcc -g -fopenmp test-omp.c -o test-omp.c.exe >> test-omp.c.log
 
 #
 # DLL examples 
@@ -38,6 +37,6 @@ rm *.s *.dump *.gkd *.exe *.dll *.log
 ~/cross/bin/aarch64-w64-mingw32-objdump -dr test-throw.exe >> test-throw.dump
 ~/cross/bin/aarch64-w64-mingw32-objdump -dr test-dll-auto.exe >> test-dll-auto.dump
 ~/cross/bin/aarch64-w64-mingw32-objdump -dr test-dll-export.exe >> test-dll-export.dump
-~/cross/bin/aarch64-w64-mingw32-objdump -dr test-struct.exe >> test-struct.dump
+~/cross/bin/aarch64-w64-mingw32-objdump -dr test-struct.c.exe >> test-struct.c.dump
 
 

tests/test-math.c

@@ -1,38 +1,49 @@
+#include <assert.h>
+#include <stdarg.h>
 #include <stdio.h>
+#include <string.h>
 
-_Float128 foo (_Float128 x)
+// Source: https://cpufun.substack.com/p/portable-support-for-128b-floats
+#define M_E_LD 2.718281828459045235360287471352662498L
+
+#define assert_sizeof(type, size) \
+    printf ("expected: sizeof(%s) == %d\n", #type, size); \
+    printf ("actual: sizeof(%s) == %d\n", #type, sizeof (type)); \
+    assert (sizeof (type) == size);
+
+void assert_snprintf(const char* expected, const char* format, ...)
 {
-    _Complex _Float128 z1, z2;
+    va_list list;
+    va_start (list, format);
 
-    z1 = x;
-    z2 = x / 7.F128;
-    z2 /= z1;
+    const int SIZE = 1024;
+    char actual[SIZE];
+    snprintf (actual, SIZE, format, list);
+    printf ("expected: %s\n", expected);
+    printf ("actual: %s\n", actual);
+    assert (strncmp (expected, actual, SIZE) == 0);
 
-    return (_Float128) z2;
+    va_end(list);
 }
 
-_Float128 bar (_Float128 x)
+int main() 
 {
-    return x * __builtin_huge_valf128 ();
-}
+    assert_sizeof (float, 4);
+    assert_sizeof (double, 8);
+    assert_sizeof (long double, 8);
 
-_Float128 baz (_Float128 x)
-{
-    return x * __builtin_huge_valf128 ();
-}
+    float f = 1.23456f;
+    double d = 1.23456;
+    long double ld = M_E_LD;
 
+    assert_snprintf ("float %g => 1.23456", "float %%g => %g", f);
+    assert_snprintf ("double %g => 1.23456", "double %%g => %g", d);
+    assert_snprintf ("long double %g => 2.71828", "long double %%g => %g", ld);
+    assert_snprintf ("long double %Lg => 2.71828", "long double %%Lg => %Lg", ld);
+    assert_snprintf ("long double %qg => 2.71828", "long double %%qg => %qg", ld);
+    assert_snprintf ("long double %Qg => 2.71828", "long double %%Qg => %Qg", ld);   
 
-int main() 
-{
-    foo (1.2Q);
-    bar (1.2Q);
-    foo (1.2F128);
-    bar (1.2F128);
-    baz (1.2F128);
-    foo (1.2Q);
-    bar (1.2Q);
-    baz (1.2Q);
-
-   printf("ok\n");
-   return 0;
-}
+    printf ("ok\n");
+
+    return 0;
+}