| ; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s |
| ; RUN: opt < %s -msan -msan-check-access-address=1 -S | FileCheck %s --check-prefix=ADDR |
| ; REQUIRES: x86-registered-target |
| |
| 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" |
| |
| declare void @llvm.x86.sse.stmxcsr(i8*) |
| declare void @llvm.x86.sse.ldmxcsr(i8*) |
| |
| define void @getcsr(i32 *%p) sanitize_memory { |
| entry: |
| %0 = bitcast i32* %p to i8* |
| call void @llvm.x86.sse.stmxcsr(i8* %0) |
| ret void |
| } |
| |
| ; CHECK-LABEL: @getcsr( |
| ; CHECK: store i32 0, i32* |
| ; CHECK: call void @llvm.x86.sse.stmxcsr( |
| ; CHECK: ret void |
| |
| ; ADDR-LABEL: @getcsr( |
| ; ADDR: %[[A:.*]] = load i64, i64* getelementptr inbounds {{.*}} @__msan_param_tls, i32 0, i32 0), align 8 |
| ; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0 |
| ; ADDR: br i1 %[[B]], label {{.*}}, label |
| ; ADDR: call void @__msan_warning_noreturn() |
| ; ADDR: call void @llvm.x86.sse.stmxcsr( |
| ; ADDR: ret void |
| |
| ; Function Attrs: nounwind uwtable |
| define void @setcsr(i32 *%p) sanitize_memory { |
| entry: |
| %0 = bitcast i32* %p to i8* |
| call void @llvm.x86.sse.ldmxcsr(i8* %0) |
| ret void |
| } |
| |
| ; CHECK-LABEL: @setcsr( |
| ; CHECK: %[[A:.*]] = load i32, i32* %{{.*}}, align 1 |
| ; CHECK: %[[B:.*]] = icmp ne i32 %[[A]], 0 |
| ; CHECK: br i1 %[[B]], label {{.*}}, label |
| ; CHECK: call void @__msan_warning_noreturn() |
| ; CHECK: call void @llvm.x86.sse.ldmxcsr( |
| ; CHECK: ret void |
| |
| ; ADDR-LABEL: @setcsr( |
| ; ADDR: %[[A:.*]] = load i64, i64* getelementptr inbounds {{.*}} @__msan_param_tls, i32 0, i32 0), align 8 |
| ; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0 |
| ; ADDR: br i1 %[[B]], label {{.*}}, label |
| ; ADDR: call void @__msan_warning_noreturn() |
| ; ADDR: call void @llvm.x86.sse.ldmxcsr( |
| ; ADDR: ret void |