41 lines
2.0 KiB
LLVM
41 lines
2.0 KiB
LLVM
; RUN: opt < %s -passes=dfsan -dfsan-track-origins=1 -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-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"
|
|
|
|
; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
|
|
; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]
|
|
|
|
declare void @llvm.memcpy.p0.p0.i32(ptr, ptr, i32, i1)
|
|
declare void @llvm.memmove.p0.p0.i32(ptr, ptr, i32, i1)
|
|
declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1)
|
|
|
|
define void @memcpy(ptr %d, ptr %s, i32 %l) {
|
|
; CHECK: @memcpy.dfsan
|
|
; CHECK: [[L64:%.*]] = zext i32 %l to i64
|
|
; CHECK: call void @__dfsan_mem_origin_transfer(ptr %d, ptr %s, i64 [[L64]])
|
|
; CHECK: call void @llvm.memcpy.p0.p0.i32(ptr align [[#SBYTES]] {{.*}}, ptr align [[#SBYTES]] {{.*}}, i32 {{.*}}, i1 false)
|
|
; CHECK: call void @llvm.memcpy.p0.p0.i32(ptr %d, ptr %s, i32 %l, i1 false)
|
|
|
|
call void @llvm.memcpy.p0.p0.i32(ptr %d, ptr %s, i32 %l, i1 0)
|
|
ret void
|
|
}
|
|
|
|
define void @memmove(ptr %d, ptr %s, i32 %l) {
|
|
; CHECK: @memmove.dfsan
|
|
; CHECK: [[L64:%.*]] = zext i32 %l to i64
|
|
; CHECK: call void @__dfsan_mem_origin_transfer(ptr %d, ptr %s, i64 [[L64]])
|
|
; CHECK: call void @llvm.memmove.p0.p0.i32(ptr align [[#SBYTES]] {{.*}}, ptr align [[#SBYTES]] {{.*}}, i32 {{.*}}, i1 false)
|
|
; CHECK: call void @llvm.memmove.p0.p0.i32(ptr %d, ptr %s, i32 %l, i1 false)
|
|
|
|
call void @llvm.memmove.p0.p0.i32(ptr %d, ptr %s, i32 %l, i1 0)
|
|
ret void
|
|
}
|
|
|
|
define void @memset(ptr %p, i8 %v) {
|
|
; CHECK: @memset.dfsan
|
|
; CHECK: [[O:%.*]] = load i32, ptr getelementptr inbounds ([200 x i32], ptr @__dfsan_arg_origin_tls, i64 0, i64 1), align 4
|
|
; CHECK: [[S:%.*]] = load i[[#SBITS]], ptr inttoptr (i64 add (i64 ptrtoint (ptr @__dfsan_arg_tls to i64), i64 2) to ptr), align [[ALIGN:2]]
|
|
; CHECK: call void @__dfsan_set_label(i[[#SBITS]] [[S]], i32 [[O]], ptr %p, i64 1)
|
|
call void @llvm.memset.p0.i64(ptr %p, i8 %v, i64 1, i1 1)
|
|
ret void
|
|
} |