llvm-project/llvm/test/CodeGen/X86/GC/dynamic-frame-size.ll
Dan Gohman 61d15ae4f5 [MC] Use .p2align instead of .align
For historic reasons, the behavior of .align differs between targets.
Fortunately, there are alternatives, .p2align and .balign, which make the
interpretation of the parameter explicit, and which behave consistently across
targets.

This patch teaches MC to use .p2align instead of .align, so that people reading
code for multiple architectures don't have to remember which way each platform
does its .align directive.

Differential Revision: http://reviews.llvm.org/D16549

llvm-svn: 258750
2016-01-26 00:03:25 +00:00

29 lines
718 B
LLVM

; RUN: llc < %s | FileCheck %s
target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"
declare void @use(<4 x i8*>*)
; Test that a frame which requires dynamic relocation produces a stack map
; with a size of UINT64_MAX.
define void @test(i8* %ptr) gc "erlang" {
; 32 byte alignment (for the alloca) is larger than the default
; 16 byte alignment
%slot = alloca <4 x i8*>
call void @use(<4 x i8*>* %slot);
ret void
}
; CHECK: .note.gc
; CHECK-NEXT: .p2align 3
; safe point count
; CHECK: .short 1
; CHECK: .long .Ltmp0
; stack frame size (in words)
; CHECK: .short -1
; stack arity (arguments on the stack)
; CHECK: .short 0
; live root count
; CHECK: .short 0