llvm/test/CodeGen/ARM/byval_load_align.ll
Dan Gohman f4e788949d [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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258750 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-26 00:03:25 +00:00

28 lines
1.4 KiB
LLVM

; RUN: llc < %s -mtriple thumbv7-apple-ios -O1 | FileCheck %s
; rdar://15144402
; Make sure we don't assume 4-byte alignment when loading from a byval argument
; with alignment of 2.
; CHECK: ldr r1, [r[[REG:[0-9]+]]]
; CHECK: ldr r2, [r[[REG]], #4]
; CHECK: ldr r3, [r[[REG]], #8]
; CHECK-NOT: ldm
; CHECK: .p2align 1 @ @sID
%struct.ModuleID = type { [32 x i8], [32 x i8], i16 }
@sID = internal constant %struct.ModuleID { [32 x i8] c"TEST\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00", [32 x i8] c"1.0\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00", i16 23 }, align 2
; Function Attrs: nounwind ssp
define void @Client() #0 {
entry:
tail call void @Logger(i8 signext 97, %struct.ModuleID* byval @sID) #2
ret void
}
declare void @Logger(i8 signext, %struct.ModuleID* byval) #1
attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind }