riscv: airAsm rewrite

with this rewrite we can call functions inside of
inline assembly, enabling us to use the default start.zig logic

all that's left is to implement lr/sc loops for atomically manipulating
1 and 2 byte values, after which we can use the segfault handler logic.

8 files changed, 0 insertions, 18 deletions

diff --git a/test/behavior/basic.zig b/test/behavior/basic.zig
index fbddcd15fc..052993ddc6 100644
--- a/test/behavior/basic.zig
+++ b/test/behavior/basic.zig
@@ -395,7 +395,6 @@ test "array 2D const double ptr" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const rect_2d_vertexes = [_][1]f32{
         [_]f32{1.0},
@@ -408,7 +407,6 @@ test "array 2D const double ptr with offset" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const rect_2d_vertexes = [_][2]f32{
         [_]f32{ 3.0, 4.239 },
@@ -421,7 +419,6 @@ test "array 3D const double ptr with offset" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const rect_3d_vertexes = [_][2][2]f32{
         [_][2]f32{
@@ -634,7 +631,6 @@ test "global constant is loaded with a runtime-known index" {
 
 test "multiline string literal is null terminated" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const s1 =
         \\one
diff --git a/test/behavior/cast.zig b/test/behavior/cast.zig
index cd25259064..39e42c05e6 100644
--- a/test/behavior/cast.zig
+++ b/test/behavior/cast.zig
@@ -599,7 +599,6 @@ fn testCastPtrOfArrayToSliceAndPtr() !void {
 test "cast *[1][*]const u8 to [*]const ?[*]const u8" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const window_name = [1][*]const u8{"window name"};
     const x: [*]const ?[*]const u8 = &window_name;
@@ -953,7 +952,6 @@ test "peer cast [:x]T to [*:x]T" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn doTheTest() !void {
@@ -1019,7 +1017,6 @@ test "variable initialization uses result locations properly with regards to the
 test "cast between C pointer with different but compatible types" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn foo(arg: [*]c_ushort) u16 {
@@ -1540,7 +1537,6 @@ test "cast typed undefined to int" {
 
 test "implicit cast from [:0]T to [*c]T" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var a: [:0]const u8 = "foo";
     _ = &a;
@@ -2086,7 +2082,6 @@ test "peer type resolution: many compatible pointers" {
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var buf = "foo-3".*;
 
@@ -2208,7 +2203,6 @@ test "peer type resolution: pointer attributes are combined correctly" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var buf_a align(4) = "foo".*;
     var buf_b align(4) = "bar".*;
diff --git a/test/behavior/for.zig b/test/behavior/for.zig
index bc433c578a..87ee55eee7 100644
--- a/test/behavior/for.zig
+++ b/test/behavior/for.zig
@@ -153,7 +153,6 @@ test "for loop with pointer elem var" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const source = "abcdefg";
     var target: [source.len]u8 = undefined;
diff --git a/test/behavior/memcpy.zig b/test/behavior/memcpy.zig
index c570f28ab7..fa9203713d 100644
--- a/test/behavior/memcpy.zig
+++ b/test/behavior/memcpy.zig
@@ -7,7 +7,6 @@ test "memcpy and memset intrinsics" {
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     try testMemcpyMemset();
     try comptime testMemcpyMemset();
@@ -29,7 +28,6 @@ test "@memcpy with both operands single-ptr-to-array, one is null-terminated" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     try testMemcpyBothSinglePtrArrayOneIsNullTerminated();
     try comptime testMemcpyBothSinglePtrArrayOneIsNullTerminated();
@@ -72,7 +70,6 @@ test "@memcpy slice" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     try testMemcpySlice();
     try comptime testMemcpySlice();
diff --git a/test/behavior/pointers.zig b/test/behavior/pointers.zig
index 5308ebf358..5b8abb9350 100644
--- a/test/behavior/pointers.zig
+++ b/test/behavior/pointers.zig
@@ -342,7 +342,6 @@ test "array initialization types" {
 test "null terminated pointer" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn doTheTest() !void {
diff --git a/test/behavior/struct.zig b/test/behavior/struct.zig
index bda25fa61f..52a6ec7930 100644
--- a/test/behavior/struct.zig
+++ b/test/behavior/struct.zig
@@ -504,7 +504,6 @@ test "packed struct fields are ordered from LSB to MSB" {
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var all: u64 = 0x7765443322221111;
     var bytes: [8]u8 align(@alignOf(Bitfields)) = undefined;
diff --git a/test/behavior/threadlocal.zig b/test/behavior/threadlocal.zig
index 4418870149..f91e10d12d 100644
--- a/test/behavior/threadlocal.zig
+++ b/test/behavior/threadlocal.zig
@@ -28,7 +28,6 @@ test "pointer to thread local array" {
     if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_llvm) switch (builtin.cpu.arch) {
         .x86_64, .x86 => {},
         else => return error.SkipZigTest,
diff --git a/test/behavior/union.zig b/test/behavior/union.zig
index 8ca3ce0223..a760a0e34c 100644
--- a/test/behavior/union.zig
+++ b/test/behavior/union.zig
@@ -100,7 +100,6 @@ const FooExtern = extern union {
 test "basic extern unions" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var foo = FooExtern{ .int = 1 };
     try expect(foo.int == 1);