2021-06-05 00:34:02 +02:00
|
|
|
; RUN: opt < %s -dfsan -dfsan-track-origins=1 -S | FileCheck %s
|
2021-03-09 05:13:16 +01:00
|
|
|
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_arg_tls = external thread_local(initialexec) global [[TLS_ARR:\[100 x i64\]]]
|
|
|
|
|
; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
|
|
|
|
|
; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]
|
|
|
|
|
|
|
|
|
|
define i32 @phiop(i32 %a, i32 %b, i1 %c) {
|
2021-06-17 23:55:05 +02:00
|
|
|
; CHECK: @phiop.dfsan
|
2021-03-09 05:13:16 +01:00
|
|
|
; CHECK: entry:
|
|
|
|
|
; CHECK: [[BO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 1), align 4
|
|
|
|
|
; CHECK: [[AO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4
|
2021-04-21 00:31:58 +02:00
|
|
|
; CHECK: [[BS:%.*]] = load i[[#SBITS]], i[[#SBITS]]* inttoptr (i64 add (i64 ptrtoint ([[TLS_ARR]]* @__dfsan_arg_tls to i64), i64 2) to i[[#SBITS]]*), align [[ALIGN:2]]
|
|
|
|
|
; CHECK: [[AS:%.*]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align [[ALIGN]]
|
2021-03-09 05:13:16 +01:00
|
|
|
; CHECK: br i1 %c, label %next, label %done
|
|
|
|
|
; CHECK: next:
|
|
|
|
|
; CHECK: br i1 %c, label %T, label %F
|
|
|
|
|
; CHECK: T:
|
|
|
|
|
; CHECK: [[BS_NE:%.*]] = icmp ne i[[#SBITS]] [[BS]], 0
|
|
|
|
|
; CHECK: [[BAO_T:%.*]] = select i1 [[BS_NE]], i32 [[BO]], i32 [[AO]]
|
|
|
|
|
; CHECK: br label %done
|
|
|
|
|
; CHECK: F:
|
|
|
|
|
; CHECK: [[AS_NE:%.*]] = icmp ne i[[#SBITS]] [[AS]], 0
|
|
|
|
|
; CHECK: [[BAO_F:%.*]] = select i1 [[AS_NE]], i32 [[AO]], i32 [[BO]]
|
|
|
|
|
; CHECK: br label %done
|
|
|
|
|
; CHECK: done:
|
|
|
|
|
; CHECK: [[PO:%.*]] = phi i32 [ [[BAO_T]], %T ], [ [[BAO_F]], %F ], [ [[AO]], %entry ]
|
|
|
|
|
; CHECK: store i32 [[PO]], i32* @__dfsan_retval_origin_tls, align 4
|
|
|
|
|
|
|
|
|
|
entry:
|
|
|
|
|
br i1 %c, label %next, label %done
|
|
|
|
|
next:
|
|
|
|
|
br i1 %c, label %T, label %F
|
|
|
|
|
T:
|
|
|
|
|
%sum = add i32 %a, %b
|
|
|
|
|
br label %done
|
|
|
|
|
F:
|
|
|
|
|
%diff = sub i32 %b, %a
|
|
|
|
|
br label %done
|
|
|
|
|
done:
|
|
|
|
|
%r = phi i32 [%sum, %T], [%diff, %F], [%a, %entry]
|
|
|
|
|
ret i32 %r
|
|
|
|
|
}
|
