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Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

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In particular I wanted to take advantage of the new hex float parsing
code.
This commit is contained in:
Andrew Kelley
2021-04-28 14:53:50 -07:00
parent eb9c29eb81 55c58f226d
commit df24ce52b1
52 changed files with 1672 additions and 483 deletions
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15
lib/std/debug.zig
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@@ -339,6 +339,13 @@ pub const StackIterator = struct {
fp: usize,
pub fn init(first_address: ?usize, fp: ?usize) StackIterator {
if (native_arch == .sparcv9) {
// Flush all the register windows on stack.
asm volatile (
\\ flushw
::: "memory");
}
return StackIterator{
.first_address = first_address,
.fp = fp orelse @frameAddress(),
@@ -346,18 +353,18 @@ pub const StackIterator = struct {
}
// Offset of the saved BP wrt the frame pointer.
const fp_offset = if (native_arch.isRISCV())
const fp_offset = if (comptime native_arch.isRISCV())
// On RISC-V the frame pointer points to the top of the saved register
// area, on pretty much every other architecture it points to the stack
// slot where the previous frame pointer is saved.
2 * @sizeOf(usize)
else if (native_arch.isSPARC())
else if (comptime native_arch.isSPARC())
// On SPARC the previous frame pointer is stored at 14 slots past %fp+BIAS.
14 * @sizeOf(usize)
else
0;
const fp_bias = if (native_arch.isSPARC())
const fp_bias = if (comptime native_arch.isSPARC())
// On SPARC frame pointers are biased by a constant.
2047
else
@@ -383,7 +390,7 @@ pub const StackIterator = struct {
}
fn next_internal(self: *StackIterator) ?usize {
const fp = if (native_arch.isSPARC())
const fp = if (comptime native_arch.isSPARC())
// On SPARC the offset is positive. (!)
math.add(usize, self.fp, fp_offset) catch return null
else