File: byval-alignment.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (20 lines) | stat: -rw-r--r-- 722 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; Test that copy alignment for byval arguments is limited by param-tls slot alignment.

; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck  \
; RUN: %s

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.S = type { i64, i64, i64, [8 x i8] }

; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 {{.*}} add {{.*}} ptrtoint {{.*}} @__msan_param_tls {{.*}} i64 8) {{.*}}, ptr align 8 {{.*}}, i64 32, i1 false)

define void @Caller() sanitize_memory {
entry:
  %agg.tmp = alloca %struct.S, align 16
  call void @Callee(i32 1, ptr byval(%struct.S) align 16 %agg.tmp)
  ret void
}

declare void @Callee(i32, ptr byval(%struct.S) align 16)