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llvm-6502/test/CodeGen/X86/stackmap-nops.ll
David Blaikie 32b845d223 [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 
See r230786 and r230794 for similar changes to gep and load
respectively.

Call is a bit different because it often doesn't have a single explicit
type - usually the type is deduced from the arguments, and just the
return type is explicit. In those cases there's no need to change the
IR.

When that's not the case, the IR usually contains the pointer type of
the first operand - but since typed pointers are going away, that
representation is insufficient so I'm just stripping the "pointerness"
of the explicit type away.

This does make the IR a bit weird - it /sort of/ reads like the type of
the first operand: "call void () %x(" but %x is actually of type "void
()*" and will eventually be just of type "ptr". But this seems not too
bad and I don't think it would benefit from repeating the type
("void (), void () * %x(" and then eventually "void (), ptr %x(") as has
been done with gep and load.

This also has a side benefit: since the explicit type is no longer a
pointer, there's no ambiguity between an explicit type and a function
that returns a function pointer. Previously this case needed an explicit
type (eg: a function returning a void() function was written as
"call void () () * @x(" rather than "call void () * @x(" because of the
ambiguity between a function returning a pointer to a void() function
and a function returning void).

No ambiguity means even function pointer return types can just be
written alone, without writing the whole function's type.

This leaves /only/ the varargs case where the explicit type is required.

Given the special type syntax in call instructions, the regex-fu used
for migration was a bit more involved in its own unique way (as every
one of these is) so here it is. Use it in conjunction with the apply.sh
script and associated find/xargs commands I've provided in rr230786 to
migrate your out of tree tests. Do let me know if any of this doesn't
cover your cases & we can iterate on a more general script/regexes to
help others with out of tree tests.

About 9 test cases couldn't be automatically migrated - half of those
were functions returning function pointers, where I just had to manually
delete the function argument types now that we didn't need an explicit
function type there. The other half were typedefs of function types used
in calls - just had to manually drop the * from those.

import fileinput
import sys
import re

pat = re.compile(r'((?:=|:|^|\s)call\s(?:[^@]*?))(\s*$|\s*(?:(?:\[\[[a-zA-Z0-9_]+\]\]|[@%](?:(")?[\\\?@a-zA-Z0-9_.]*?(?(3)"|)|{{.*}}))(?:\(|$)|undef|inttoptr|bitcast|null|asm).*$)')
addrspace_end = re.compile(r"addrspace\(\d+\)\s*\*$")
func_end = re.compile("(?:void.*|\)\s*)\*$")

def conv(match, line):
  if not match or re.search(addrspace_end, match.group(1)) or not re.search(func_end, match.group(1)):
    return line
  return line[:match.start()] + match.group(1)[:match.group(1).rfind('*')].rstrip() + match.group(2) + line[match.end():]

for line in sys.stdin:
  sys.stdout.write(conv(re.search(pat, line), line))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235145 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 23:24:18 +00:00

235 lines
6.9 KiB
LLVM
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; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s
define void @nop_test() {
entry:
; CHECK-LABEL: nop_test:
; CHECK: nop
; CHECK: xchgw %ax, %ax
; CHECK: nopl (%rax)
; CHECK: nopl 8(%rax)
; CHECK: nopl 8(%rax,%rax)
; CHECK: nopw 8(%rax,%rax)
; CHECK: nopl 512(%rax)
; CHECK: nopl 512(%rax,%rax)
; CHECK: nopw 512(%rax,%rax)
; CHECK: nopw %cs:512(%rax,%rax)
; 11
; CHECK: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 12
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 13
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 14
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 15
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 16
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nop
; 17
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: xchgw %ax, %ax
; 18
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl (%rax)
; 19
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 8(%rax)
; 20
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 8(%rax,%rax)
; 21
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw 8(%rax,%rax)
; 22
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 512(%rax)
; 23
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopl 512(%rax,%rax)
; 24
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw 512(%rax,%rax)
; 25
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 26
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 27
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 28
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
;29
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; 30
; CHECK: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: .byte 102
; CHECK-NEXT: nopw %cs:512(%rax,%rax)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 0, i32 0)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 1, i32 1)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 2, i32 2)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 3, i32 3)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 4, i32 4)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 5, i32 5)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 6, i32 6)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 7, i32 7)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 8, i32 8)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 9, i32 9)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 10, i32 10)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 11, i32 11)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 12, i32 12)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 13, i32 13)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 14, i32 14)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 15, i32 15)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 16, i32 16)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 17, i32 17)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 18, i32 18)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 19, i32 19)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 20, i32 20)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 21, i32 21)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 22, i32 22)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 23, i32 23)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 24, i32 24)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 25, i32 25)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 26, i32 26)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 27, i32 27)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 28, i32 28)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 29, i32 29)
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 30, i32 30)
; Add an extra stackmap with a zero-length shadow to thwart the shadow
; optimization. This will force all 15 bytes of the previous shadow to be
; padded with nops.
tail call void (i64, i32, ...) @llvm.experimental.stackmap(i64 31, i32 0)
ret void
}
declare void @llvm.experimental.stackmap(i64, i32, ...)
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