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[HWASAN] Add test for optnone function. 

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D120102
This commit is contained in:
Florian Mayer 2022-02-17 16:51:05 -08:00
parent 1d730d80ce
commit 864820bb3c
1 changed files with 61 additions and 0 deletions
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61
llvm/test/Instrumentation/HWAddressSanitizer/use-after-scope.ll
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@ -68,6 +68,67 @@ define dso_local i32 @standard_lifetime() local_unnamed_addr sanitize_hwaddress
ret i32 0
}
define dso_local i32 @standard_lifetime_optnone() local_unnamed_addr optnone noinline sanitize_hwaddress {
; SCOPE-LABEL: @standard_lifetime_optnone(
; SCOPE-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call i8* asm "", "=r,0"(i8* null)
; SCOPE-NEXT: [[TMP1:%.*]] = alloca { i8, [15 x i8] }, align 16
; SCOPE-NEXT: [[TMP2:%.*]] = bitcast { i8, [15 x i8] }* [[TMP1]] to i8*
; SCOPE-NEXT: [[TMP3:%.*]] = call i8 @__hwasan_generate_tag()
; SCOPE-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i64
; SCOPE-NEXT: [[TMP5:%.*]] = ptrtoint i8* [[TMP2]] to i64
; SCOPE-NEXT: [[TMP6:%.*]] = shl i64 [[TMP4]], 57
; SCOPE-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]]
; SCOPE-NEXT: [[ALLOCA_0_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to i8*
; SCOPE-NEXT: br label [[TMP8:%.*]]
; SCOPE: 8:
; SCOPE-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[ALLOCA_0_HWASAN]])
; SCOPE-NEXT: [[TMP9:%.*]] = trunc i64 [[TMP4]] to i8
; SCOPE-NEXT: call void @__hwasan_tag_memory(i8* [[TMP2]], i8 [[TMP9]], i64 16)
; SCOPE-NEXT: [[TMP10:%.*]] = tail call i1 (...) @cond()
; SCOPE-NEXT: call void @__hwasan_tag_memory(i8* [[TMP2]], i8 0, i64 16)
; SCOPE-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[ALLOCA_0_HWASAN]])
; SCOPE-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP8]]
; SCOPE: 11:
; SCOPE-NEXT: call void @use(i8* nonnull [[ALLOCA_0_HWASAN]])
; SCOPE-NEXT: ret i32 0
;
; NOSCOPE-LABEL: @standard_lifetime_optnone(
; NOSCOPE-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call i8* asm "", "=r,0"(i8* null)
; NOSCOPE-NEXT: [[TMP1:%.*]] = alloca { i8, [15 x i8] }, align 16
; NOSCOPE-NEXT: [[TMP2:%.*]] = bitcast { i8, [15 x i8] }* [[TMP1]] to i8*
; NOSCOPE-NEXT: [[TMP3:%.*]] = call i8 @__hwasan_generate_tag()
; NOSCOPE-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i64
; NOSCOPE-NEXT: [[TMP5:%.*]] = ptrtoint i8* [[TMP2]] to i64
; NOSCOPE-NEXT: [[TMP6:%.*]] = shl i64 [[TMP4]], 57
; NOSCOPE-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]]
; NOSCOPE-NEXT: [[ALLOCA_0_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to i8*
; NOSCOPE-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP4]] to i8
; NOSCOPE-NEXT: call void @__hwasan_tag_memory(i8* [[TMP2]], i8 [[TMP8]], i64 16)
; NOSCOPE-NEXT: br label [[TMP9:%.*]]
; NOSCOPE: 9:
; NOSCOPE-NEXT: [[TMP10:%.*]] = tail call i1 (...) @cond()
; NOSCOPE-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP9]]
; NOSCOPE: 11:
; NOSCOPE-NEXT: call void @use(i8* nonnull [[ALLOCA_0_HWASAN]])
; NOSCOPE-NEXT: call void @__hwasan_tag_memory(i8* [[TMP2]], i8 0, i64 16)
; NOSCOPE-NEXT: ret i32 0
;
%1 = alloca i8, align 1
br label %2
2: ; preds = %2, %0
; We should tag the memory after the br (in the loop).
call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %1)
%3 = tail call i1 (...) @cond() #2
; We should tag the memory before the next br (before the jump back).
call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull %1)
br i1 %3, label %4, label %2
4: ; preds = %2
call void @use(i8* nonnull %1) #2
ret i32 0
}
define dso_local i32 @multiple_lifetimes() local_unnamed_addr sanitize_hwaddress {
; SCOPE-LABEL: @multiple_lifetimes(
; SCOPE-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call i8* asm "", "=r,0"(i8* null)