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stage2: stop needlessly re-analyzing unchanged functions

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This commit is contained in:
Andrew Kelley 2020-08-03 23:47:54 -07:00
parent cb25d8e4bc
commit 30ee08dfc2
2 changed files with 14 additions and 9 deletions
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8
src-self-hosted/Module.zig
View File

@ -1108,11 +1108,9 @@ pub fn ensureDeclAnalyzed(self: *Module, decl: *Decl) InnerError!void {
.codegen_failure_retryable,
=> return error.AnalysisFail,
.complete, .outdated => blk: {
if (decl.generation == self.generation) {
assert(decl.analysis == .complete);
return;
}
.complete => return,
.outdated => blk: {
log.debug(.module, "re-analyzing {}\n", .{decl.name});
// The exports this Decl performs will be re-discovered, so we remove them here

15
src-self-hosted/link.zig
View File

@ -1324,7 +1324,7 @@ pub const File = struct {
shstrtab_sect.sh_offset = self.findFreeSpace(needed_size, 1);
}
shstrtab_sect.sh_size = needed_size;
log.debug(.link, "shstrtab start=0x{x} end=0x{x}\n", .{ shstrtab_sect.sh_offset, shstrtab_sect.sh_offset + needed_size });
log.debug(.link, "writing shstrtab start=0x{x} end=0x{x}\n", .{ shstrtab_sect.sh_offset, shstrtab_sect.sh_offset + needed_size });
try self.file.?.pwriteAll(self.shstrtab.items, shstrtab_sect.sh_offset);
if (!self.shdr_table_dirty) {
@ -1980,11 +1980,17 @@ pub const File = struct {
src_fn.off = self.dbgLineNeededHeaderBytes() * alloc_num / alloc_den;
}
const needed_size = src_fn.off + src_fn.len;
const last_src_fn = self.dbg_line_fn_last.?;
const needed_size = last_src_fn.off + last_src_fn.len;
if (needed_size != debug_line_sect.sh_size) {
if (needed_size > self.allocatedSize(debug_line_sect.sh_offset)) {
const new_offset = self.findFreeSpace(needed_size, 1);
const existing_size = src_fn.off;
const existing_size = last_src_fn.off;
log.debug(.link, "moving .debug_line section: {} bytes from 0x{x} to 0x{x}\n", .{
existing_size,
debug_line_sect.sh_offset,
new_offset,
});
const amt = try self.file.?.copyRangeAll(debug_line_sect.sh_offset, self.file.?, new_offset, existing_size);
if (amt != existing_size) return error.InputOutput;
debug_line_sect.sh_offset = new_offset;
@ -2112,7 +2118,6 @@ pub const File = struct {
fn writeSectHeader(self: *Elf, index: usize) !void {
const foreign_endian = self.base.options.target.cpu.arch.endian() != std.Target.current.cpu.arch.endian();
const offset = self.sections.items[index].sh_offset;
switch (self.base.options.target.cpu.arch.ptrBitWidth()) {
32 => {
var shdr: [1]elf.Elf32_Shdr = undefined;
@ -2120,6 +2125,7 @@ pub const File = struct {
if (foreign_endian) {
bswapAllFields(elf.Elf32_Shdr, &shdr[0]);
}
const offset = self.shdr_table_offset.? + index * @sizeOf(elf.Elf32_Shdr);
return self.file.?.pwriteAll(mem.sliceAsBytes(&shdr), offset);
},
64 => {
@ -2127,6 +2133,7 @@ pub const File = struct {
if (foreign_endian) {
bswapAllFields(elf.Elf64_Shdr, &shdr[0]);
}
const offset = self.shdr_table_offset.? + index * @sizeOf(elf.Elf64_Shdr);
return self.file.?.pwriteAll(mem.sliceAsBytes(&shdr), offset);
},
else => return error.UnsupportedArchitecture,