| ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-wrap-indirect-calls=zzz -msan-wrap-indirect-calls-fast=0 -S | FileCheck %s |
| ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-wrap-indirect-calls=zzz -msan-wrap-indirect-calls-fast=1 -S | FileCheck -check-prefix=CHECK-FAST %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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Test for -msan-wrap-indirect-calls functionality. |
| ; Replaces indirect call to %f with a call to whatever is returned from the |
| ; wrapper function. |
| |
| ; This does not depend on the sanitize_memory attribute. |
| define i32 @func(i32 (i32, i32)* nocapture %f, i32 %x, i32 %y) { |
| entry: |
| %call = tail call i32 %f(i32 %x, i32 %y) |
| ret i32 %call |
| } |
| |
| ; CHECK: @func |
| ; CHECK: bitcast i32 (i32, i32)* %f to void ()* |
| ; CHECK: call void ()* (void ()*)* @zzz(void ()* |
| ; CHECK: [[A:%[01-9a-z_.]+]] = bitcast void ()* {{.*}} to i32 (i32, i32)* |
| ; CHECK: call i32 {{.*}}[[A]](i32 {{.*}}, i32 {{.*}}) |
| ; CHECK: ret i32 |
| |
| ; CHECK-FAST: @func |
| ; CHECK-FAST: bitcast i32 (i32, i32)* %f to void ()* |
| ; CHECK-FAST-DAG: icmp ult void ()* {{.*}}, bitcast (i32* @__executable_start to void ()*) |
| ; CHECK-FAST-DAG: icmp uge void ()* {{.*}}, bitcast (i32* @_end to void ()*) |
| ; CHECK-FAST: or i1 |
| ; CHECK-FAST: br i1 |
| ; CHECK-FAST: call void ()* (void ()*)* @zzz(void ()* |
| ; CHECK-FAST: br label |
| ; CHECK-FAST: [[A:%[01-9a-z_.]+]] = phi i32 (i32, i32)* [ %f, %entry ], [ {{.*}} ] |
| ; CHECK-FAST: call i32 {{.*}}[[A]](i32 {{.*}}, i32 {{.*}}) |
| ; CHECK-FAST: ret i32 |
