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go/test/asmhdr.dir/main.s

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cmd/compile: emit sensible go_asm.h consts for big ints Currently, the compiler will emit any const that doesn't fit in an int64 to go_asm.h like #define const_stackPreempt constant.intVal{val:(*big.Int)(0xc000c06c40)} This happens because dumpasmhdr formats the constant.Value using the verb "%#v". Since constant.Value doesn't implement the GoString() method, this just prints the Go-syntax representation of the value. This happens to work for small integer constants, which go/constant represents directly as an int64, but not for integer constants that don't fit in an int64, which go/constant represents as a big.Int. Make these constants usable by changing the formatting verb to "%v", which will call the String() method, giving a reasonable result in all cases. Change-Id: I365eeb88c8acfc43ff377cc873432269bde3f541 Reviewed-on: https://go-review.googlesource.com/c/go/+/359954 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
2021-08-06 15:01:25 -06:00
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "go_asm.h"
#define RODATA 8
DATA ·smallIntAsm(SB)/8, $const_smallInt
GLOBL ·smallIntAsm(SB),RODATA,$8
DATA ·bigIntAsm(SB)/8, $const_bigInt
GLOBL ·bigIntAsm(SB),RODATA,$8
DATA ·stringAsm(SB)/4, $const_stringVal
GLOBL ·stringAsm(SB),RODATA,$4
DATA ·typSize(SB)/8, $typ__size
GLOBL ·typSize(SB),RODATA,$8
DATA ·typA(SB)/8, $typ_a
GLOBL ·typA(SB),RODATA,$8
DATA ·typB(SB)/8, $typ_b
GLOBL ·typB(SB),RODATA,$8
DATA ·typC(SB)/8, $typ_c
GLOBL ·typC(SB),RODATA,$8
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