| Evgeniy Stepanov | d0285f2 | 2017-03-03 01:12:43 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s |
| 2 | ; RUN: opt < %s -msan -msan-check-access-address=1 -S | FileCheck %s --check-prefix=ADDR |
| 3 | |
| 4 | 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" |
| 5 | target triple = "x86_64-unknown-linux-gnu" |
| 6 | |
| 7 | declare void @llvm.x86.sse.stmxcsr(i8*) |
| 8 | declare void @llvm.x86.sse.ldmxcsr(i8*) |
| 9 | |
| 10 | define void @getcsr(i32 *%p) sanitize_memory { |
| 11 | entry: |
| 12 | %0 = bitcast i32* %p to i8* |
| 13 | call void @llvm.x86.sse.stmxcsr(i8* %0) |
| 14 | ret void |
| 15 | } |
| 16 | |
| 17 | ; CHECK-LABEL: @getcsr( |
| 18 | ; CHECK: store i32 0, i32* |
| 19 | ; CHECK: call void @llvm.x86.sse.stmxcsr( |
| 20 | ; CHECK: ret void |
| 21 | |
| 22 | ; ADDR-LABEL: @getcsr( |
| 23 | ; ADDR: %[[A:.*]] = load i64, i64* getelementptr inbounds {{.*}} @__msan_param_tls, i32 0, i32 0), align 8 |
| 24 | ; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0 |
| 25 | ; ADDR: br i1 %[[B]], label {{.*}}, label |
| 26 | ; ADDR: call void @__msan_warning_noreturn() |
| 27 | ; ADDR: call void @llvm.x86.sse.stmxcsr( |
| 28 | ; ADDR: ret void |
| 29 | |
| 30 | ; Function Attrs: nounwind uwtable |
| 31 | define void @setcsr(i32 *%p) sanitize_memory { |
| 32 | entry: |
| 33 | %0 = bitcast i32* %p to i8* |
| 34 | call void @llvm.x86.sse.ldmxcsr(i8* %0) |
| 35 | ret void |
| 36 | } |
| 37 | |
| 38 | ; CHECK-LABEL: @setcsr( |
| 39 | ; CHECK: %[[A:.*]] = load i32, i32* %{{.*}}, align 1 |
| 40 | ; CHECK: %[[B:.*]] = icmp ne i32 %[[A]], 0 |
| 41 | ; CHECK: br i1 %[[B]], label {{.*}}, label |
| 42 | ; CHECK: call void @__msan_warning_noreturn() |
| 43 | ; CHECK: call void @llvm.x86.sse.ldmxcsr( |
| 44 | ; CHECK: ret void |
| 45 | |
| 46 | ; ADDR-LABEL: @setcsr( |
| 47 | ; ADDR: %[[A:.*]] = load i64, i64* getelementptr inbounds {{.*}} @__msan_param_tls, i32 0, i32 0), align 8 |
| 48 | ; ADDR: %[[B:.*]] = icmp ne i64 %[[A]], 0 |
| 49 | ; ADDR: br i1 %[[B]], label {{.*}}, label |
| 50 | ; ADDR: call void @__msan_warning_noreturn() |
| 51 | ; ADDR: call void @llvm.x86.sse.ldmxcsr( |
| 52 | ; ADDR: ret void |