mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 19:42:54 +02:00
8eadab0fdb
The @llvm.get.dynamic.area.offset.* intrinsic family is used to get the offset from native stack pointer to the address of the most recent dynamic alloca on the caller's stack. These intrinsics are intendend for use in combination with @llvm.stacksave and @llvm.restore to get a pointer to the most recent dynamic alloca. This is useful, for example, for AddressSanitizer's stack unpoisoning routines. Patch by Max Ostapenko. Differential Revision: http://reviews.llvm.org/D14983 llvm-svn: 254404
22 lines
685 B
LLVM
22 lines
685 B
LLVM
; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s
|
|
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
|
|
target triple = "powerpc64-unknown-linux-gnu"
|
|
|
|
declare i64 @llvm.get.dynamic.area.offset.i64()
|
|
|
|
declare i64 @bar(i64)
|
|
|
|
attributes #0 = { nounwind }
|
|
|
|
; Function Attrs: nounwind sanitize_address uwtable
|
|
define signext i64 @foo(i32 signext %N, i32 signext %M) #0 {
|
|
%1 = alloca i64, align 32
|
|
%dynamic_area_offset = call i64 @llvm.get.dynamic.area.offset.i64()
|
|
%2 = call i64 @bar(i64 %dynamic_area_offset)
|
|
ret i64 %2
|
|
|
|
; CHECK-DAG: li [[REG1:[0-9]+]], 112
|
|
; CHECK: blr
|
|
|
|
}
|