| author |  Jacob Young <jacobly@ziglang.org> 2023-04-28 02:24:29-04:00 |
| committer | Jacob Young <jacobly@ziglang.org> 2023-05-01 19:22:52-04:00 |
| log | 50f96c2949bd7d396eaaf391ffd5fd55e59ebac1 |
| tree | c5302677eecf012d7d83da4f3b51578767b87c0f |
| parent | db76ae82607b941373064b05a348950802a21217 |
x86_64: fix stack realignment
2 files changed, 4 insertions(+), 8 deletions(-)
src- arch
- x86_64
- test
- behavior
src/arch/x86_64/CodeGen.zig+4-3
| ... | ... | @@ -1673,15 +1673,16 @@ fn allocFrameIndex(self: *Self, alloc: FrameAlloc) !FrameIndex { |
| 1673 | 1673 | const frame_allocs_slice = self.frame_allocs.slice(); |
| 1674 | 1674 | const frame_size = frame_allocs_slice.items(.abi_size); |
| 1675 | 1675 | const frame_align = frame_allocs_slice.items(.abi_align); |
| 1676 | ||
| 1677 | const stack_frame_align = &frame_align[@enumToInt(FrameIndex.stack_frame)]; | |
| 1678 | stack_frame_align.* = @max(stack_frame_align.*, alloc.abi_align); | |
| 1679 | ||
| 1676 | 1680 | for (self.free_frame_indices.keys(), 0..) |frame_index, free_i| { |
| 1677 | 1681 | const abi_size = frame_size[@enumToInt(frame_index)]; |
| 1678 | 1682 | if (abi_size != alloc.abi_size) continue; |
| 1679 | 1683 | const abi_align = &frame_align[@enumToInt(frame_index)]; |
| 1680 | 1684 | abi_align.* = @max(abi_align.*, alloc.abi_align); |
| 1681 | 1685 | |
| 1682 | const stack_frame_align = &frame_align[@enumToInt(FrameIndex.stack_frame)]; | |
| 1683 | stack_frame_align.* = @max(stack_frame_align.*, alloc.abi_align); | |
| 1684 | ||
| 1685 | 1686 | _ = self.free_frame_indices.swapRemoveAt(free_i); |
| 1686 | 1687 | return frame_index; |
| 1687 | 1688 | } |
test/behavior/align.zig-5
| ... | ... | @@ -282,7 +282,6 @@ fn give() anyerror!u128 { |
| 282 | 282 | |
| 283 | 283 | test "page aligned array on stack" { |
| 284 | 284 | if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; |
| 285 | if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; | |
| 286 | 285 | if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; |
| 287 | 286 | if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO |
| 288 | 287 | |
| ... | ... | @@ -491,10 +490,6 @@ test "read 128-bit field from default aligned struct in global memory" { |
| 491 | 490 | } |
| 492 | 491 | |
| 493 | 492 | test "struct field explicit alignment" { |
| 494 | if (builtin.zig_backend == .stage2_x86_64) { | |
| 495 | // Careful enabling this test, fails randomly. | |
| 496 | return error.SkipZigTest; | |
| 497 | } | |
| 498 | 493 | if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; |
| 499 | 494 | if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; |
| 500 | 495 | if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO |