File: no_speculative_loads_with_asan.ll

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llvm-toolchain-15 1%3A15.0.6-4
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -O3 -S %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
declare noalias i8* @_Znam(i64) #1

define i32 @TestNoAsan() {
; CHECK-LABEL: @TestNoAsan(
; CHECK-NEXT:    ret i32 0
;
  %1 = tail call noalias i8* @_Znam(i64 2)
  %2 = getelementptr inbounds i8, i8* %1, i64 1
  store i8 0, i8* %2, align 1
  store i8 0, i8* %1, align 1
  %3 = bitcast i8* %1 to i16*
  %4 = load i16, i16* %3, align 4
  %5 = icmp eq i16 %4, 0
  br i1 %5, label %11, label %6

; <label>:6                                       ; preds = %0
  %7 = getelementptr inbounds i8, i8* %1, i64 2
  %8 = bitcast i8* %7 to i16*
  %9 = load i16, i16* %8, align 2
  %10 = sext i16 %9 to i32
  br label %11

; <label>:11                                      ; preds = %0, %6
  %12 = phi i32 [ %10, %6 ], [ 0, %0 ]
  ret i32 %12
}

define i32 @TestAsan() sanitize_address {
; CHECK-LABEL: @TestAsan(
; CHECK-NEXT:    [[TMP1:%.*]] = tail call noalias dereferenceable_or_null(2) i8* @_Znam(i64 2)
; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i64 1
; CHECK-NEXT:    store i8 0, i8* [[TMP2]], align 1
; CHECK-NEXT:    store i8 0, i8* [[TMP1]], align 1
; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i8* [[TMP1]] to i16*
; CHECK-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP3]], align 4
; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i16 [[TMP4]], 0
; CHECK-NEXT:    br i1 [[TMP5]], label [[TMP11:%.*]], label [[TMP6:%.*]]
; CHECK:       6:
; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i64 2
; CHECK-NEXT:    [[TMP8:%.*]] = bitcast i8* [[TMP7]] to i16*
; CHECK-NEXT:    [[TMP9:%.*]] = load i16, i16* [[TMP8]], align 2
; CHECK-NEXT:    [[TMP10:%.*]] = sext i16 [[TMP9]] to i32
; CHECK-NEXT:    br label [[TMP11]]
; CHECK:       11:
; CHECK-NEXT:    [[TMP12:%.*]] = phi i32 [ [[TMP10]], [[TMP6]] ], [ 0, [[TMP0:%.*]] ]
; CHECK-NEXT:    ret i32 [[TMP12]]
;
  %1 = tail call noalias i8* @_Znam(i64 2)
  %2 = getelementptr inbounds i8, i8* %1, i64 1
  store i8 0, i8* %2, align 1
  store i8 0, i8* %1, align 1
  %3 = bitcast i8* %1 to i16*
  %4 = load i16, i16* %3, align 4
  %5 = icmp eq i16 %4, 0
  br i1 %5, label %11, label %6

; <label>:6                                       ; preds = %0
  %7 = getelementptr inbounds i8, i8* %1, i64 2
  %8 = bitcast i8* %7 to i16*
  %9 = load i16, i16* %8, align 2
  %10 = sext i16 %9 to i32
  br label %11

; <label>:11                                      ; preds = %0, %6
  %12 = phi i32 [ %10, %6 ], [ 0, %0 ]
  ret i32 %12
}

define i32 @TestHWAsan() sanitize_hwaddress {
; CHECK-LABEL: @TestHWAsan(
; CHECK-NEXT:    [[TMP1:%.*]] = tail call noalias dereferenceable_or_null(2) i8* @_Znam(i64 2)
; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i64 1
; CHECK-NEXT:    store i8 0, i8* [[TMP2]], align 1
; CHECK-NEXT:    store i8 0, i8* [[TMP1]], align 1
; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i8* [[TMP1]] to i16*
; CHECK-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP3]], align 4
; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i16 [[TMP4]], 0
; CHECK-NEXT:    br i1 [[TMP5]], label [[TMP11:%.*]], label [[TMP6:%.*]]
; CHECK:       6:
; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i64 2
; CHECK-NEXT:    [[TMP8:%.*]] = bitcast i8* [[TMP7]] to i16*
; CHECK-NEXT:    [[TMP9:%.*]] = load i16, i16* [[TMP8]], align 2
; CHECK-NEXT:    [[TMP10:%.*]] = sext i16 [[TMP9]] to i32
; CHECK-NEXT:    br label [[TMP11]]
; CHECK:       11:
; CHECK-NEXT:    [[TMP12:%.*]] = phi i32 [ [[TMP10]], [[TMP6]] ], [ 0, [[TMP0:%.*]] ]
; CHECK-NEXT:    ret i32 [[TMP12]]
;
  %1 = tail call noalias i8* @_Znam(i64 2)
  %2 = getelementptr inbounds i8, i8* %1, i64 1
  store i8 0, i8* %2, align 1
  store i8 0, i8* %1, align 1
  %3 = bitcast i8* %1 to i16*
  %4 = load i16, i16* %3, align 4
  %5 = icmp eq i16 %4, 0
  br i1 %5, label %11, label %6

; <label>:6                                       ; preds = %0
  %7 = getelementptr inbounds i8, i8* %1, i64 2
  %8 = bitcast i8* %7 to i16*
  %9 = load i16, i16* %8, align 2
  %10 = sext i16 %9 to i32
  br label %11

; <label>:11                                      ; preds = %0, %6
  %12 = phi i32 [ %10, %6 ], [ 0, %0 ]
  ret i32 %12
}