
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
29 lines
718 B
LLVM
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
|
|
|