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llvm-mirror/test/Instrumentation/HWAddressSanitizer/basic.ll
Fangrui Song b632d8aff2 [IR][sanitizer] Set nounwind on module ctor/dtor, additionally set uwtable if -fasynchronous-unwind-tables 
On ELF targets, if a function has uwtable or personality, or does not have
nounwind (`needsUnwindTableEntry`), it marks that `.eh_frame` is needed in the module.

Then, a function gets `.eh_frame` if `needsUnwindTableEntry` or `-g[123]` is specified.
(i.e. If -g[123], every function gets `.eh_frame`.
This behavior is strange but that is the status quo on GCC and Clang.)

Let's take asan as an example. Other sanitizers are similar.
`asan.module_[cd]tor` has no attribute. `needsUnwindTableEntry` returns true,
so every function gets `.eh_frame` if `-g[123]` is specified.
This is the root cause that
`-fno-exceptions -fno-asynchronous-unwind-tables -g` produces .debug_frame
while
`-fno-exceptions -fno-asynchronous-unwind-tables -g -fsanitize=address` produces .eh_frame.

This patch

* sets the nounwind attribute on sanitizer module ctor/dtor.
* let Clang emit a module flag metadata "uwtable" for -fasynchronous-unwind-tables. If "uwtable" is set, sanitizer module ctor/dtor additionally get the uwtable attribute.

The "uwtable" mechanism is generic: synthesized functions not cloned/specialized
from existing ones should consider `Function::createWithDefaultAttr` instead of
`Function::create` if they want to get some default attributes which
have more of module semantics.

Other candidates: "frame-pointer" (https://github.com/ClangBuiltLinux/linux/issues/955
https://github.com/ClangBuiltLinux/linux/issues/1238), dso_local, etc.

Differential Revision: https://reviews.llvm.org/D100251
2021-04-21 15:58:20 -07:00

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; Test basic address sanitizer instrumentation.
;
; RUN: opt < %s -hwasan -hwasan-recover=0 -hwasan-with-ifunc=1 -hwasan-with-tls=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT
; RUN: opt < %s -hwasan -hwasan-recover=1 -hwasan-with-ifunc=1 -hwasan-with-tls=0 -S | FileCheck %s --check-prefixes=CHECK,RECOVER,RECOVER-DYNAMIC-SHADOW
; RUN: opt < %s -hwasan -hwasan-recover=0 -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT
; RUN: opt < %s -hwasan -hwasan-recover=1 -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=CHECK,RECOVER,RECOVER-ZERO-BASED-SHADOW
; Ensure than hwasan runs with the new PM pass
; RUN: opt < %s -passes=hwasan -hwasan-recover=0 -hwasan-with-ifunc=1 -hwasan-with-tls=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT
; RUN: opt < %s -passes=hwasan -hwasan-recover=1 -hwasan-with-ifunc=1 -hwasan-with-tls=0 -S | FileCheck %s --check-prefixes=CHECK,RECOVER,RECOVER-DYNAMIC-SHADOW
; RUN: opt < %s -passes=hwasan -hwasan-recover=0 -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT
; RUN: opt < %s -passes=hwasan -hwasan-recover=1 -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=CHECK,RECOVER,RECOVER-ZERO-BASED-SHADOW
; CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @hwasan.module_ctor, i8* bitcast (void ()* @hwasan.module_ctor to i8*) }]
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--linux-android10000"
define i8 @test_load8(i8* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load8(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i8* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label %[[MISMATCH:[0-9]*]], label %[[CONT:[0-9]*]], !prof {{.*}}
; RECOVER: [[MISMATCH]]:
; RECOVER: %[[NOTSHORT:[^ ]*]] = icmp ugt i8 %[[MEMTAG]], 15
; RECOVER: br i1 %[[NOTSHORT]], label %[[FAIL:[0-9]*]], label %[[SHORT:[0-9]*]], !prof {{.*}}
; RECOVER: [[FAIL]]:
; RECOVER: call void asm sideeffect "brk #2336", "{x0}"(i64 %[[A]])
; RECOVER: br label
; RECOVER: [[SHORT]]:
; RECOVER: %[[LOWBITS:[^ ]*]] = and i64 %[[A]], 15
; RECOVER: %[[LOWBITS_I8:[^ ]*]] = trunc i64 %[[LOWBITS]] to i8
; RECOVER: %[[LAST:[^ ]*]] = add i8 %[[LOWBITS_I8]], 0
; RECOVER: %[[OOB:[^ ]*]] = icmp uge i8 %[[LAST]], %[[MEMTAG]]
; RECOVER: br i1 %[[OOB]], label %[[FAIL]], label %[[INBOUNDS:[0-9]*]], !prof {{.*}}
; RECOVER: [[INBOUNDS]]:
; RECOVER: %[[EOG_ADDR:[^ ]*]] = or i64 %[[C]], 15
; RECOVER: %[[EOG_PTR:[^ ]*]] = inttoptr i64 %[[EOG_ADDR]] to i8*
; RECOVER: %[[EOGTAG:[^ ]*]] = load i8, i8* %[[EOG_PTR]]
; RECOVER: %[[EOG_MISMATCH:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[EOGTAG]]
; RECOVER: br i1 %[[EOG_MISMATCH]], label %[[FAIL]], label %[[CONT1:[0-9]*]], !prof {{.*}}
; RECOVER: [[CONT1]]:
; RECOVER: br label %[[CONT]]
; RECOVER: [[CONT]]:
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %a, i32 0)
; CHECK: %[[G:[^ ]*]] = load i8, i8* %a, align 4
; CHECK: ret i8 %[[G]]
entry:
%b = load i8, i8* %a, align 4
ret i8 %b
}
define i16 @test_load16(i16* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load16(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i16* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label %[[MISMATCH:[0-9]*]], label %[[CONT:[0-9]*]], !prof {{.*}}
; RECOVER: [[MISMATCH]]:
; RECOVER: %[[NOTSHORT:[^ ]*]] = icmp ugt i8 %[[MEMTAG]], 15
; RECOVER: br i1 %[[NOTSHORT]], label %[[FAIL:[0-9]*]], label %[[SHORT:[0-9]*]], !prof {{.*}}
; RECOVER: [[FAIL]]:
; RECOVER: call void asm sideeffect "brk #2337", "{x0}"(i64 %[[A]])
; RECOVER: br label
; RECOVER: [[SHORT]]:
; RECOVER: %[[LOWBITS:[^ ]*]] = and i64 %[[A]], 15
; RECOVER: %[[LOWBITS_I8:[^ ]*]] = trunc i64 %[[LOWBITS]] to i8
; RECOVER: %[[LAST:[^ ]*]] = add i8 %[[LOWBITS_I8]], 1
; RECOVER: %[[OOB:[^ ]*]] = icmp uge i8 %[[LAST]], %[[MEMTAG]]
; RECOVER: br i1 %[[OOB]], label %[[FAIL]], label %[[INBOUNDS:[0-9]*]], !prof {{.*}}
; RECOVER: [[INBOUNDS]]:
; RECOVER: %[[EOG_ADDR:[^ ]*]] = or i64 %[[C]], 15
; RECOVER: %[[EOG_PTR:[^ ]*]] = inttoptr i64 %[[EOG_ADDR]] to i8*
; RECOVER: %[[EOGTAG:[^ ]*]] = load i8, i8* %[[EOG_PTR]]
; RECOVER: %[[EOG_MISMATCH:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[EOGTAG]]
; RECOVER: br i1 %[[EOG_MISMATCH]], label %[[FAIL]], label %[[CONT1:[0-9]*]], !prof {{.*}}
; RECOVER: [[CONT1]]:
; RECOVER: br label %[[CONT]]
; RECOVER: [[CONT]]:
; ABORT: %[[A:[^ ]*]] = bitcast i16* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 1)
; CHECK: %[[G:[^ ]*]] = load i16, i16* %a, align 4
; CHECK: ret i16 %[[G]]
entry:
%b = load i16, i16* %a, align 4
ret i16 %b
}
define i32 @test_load32(i32* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load32(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i32* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2338", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i32* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 2)
; CHECK: %[[G:[^ ]*]] = load i32, i32* %a, align 4
; CHECK: ret i32 %[[G]]
entry:
%b = load i32, i32* %a, align 4
ret i32 %b
}
define i64 @test_load64(i64* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load64(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i64* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2339", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i64* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 3)
; CHECK: %[[G:[^ ]*]] = load i64, i64* %a, align 8
; CHECK: ret i64 %[[G]]
entry:
%b = load i64, i64* %a, align 8
ret i64 %b
}
define i128 @test_load128(i128* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load128(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i128* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2340", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i128* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 4)
; CHECK: %[[G:[^ ]*]] = load i128, i128* %a, align 16
; CHECK: ret i128 %[[G]]
entry:
%b = load i128, i128* %a, align 16
ret i128 %b
}
define i40 @test_load40(i40* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load40(
; CHECK: %[[A:[^ ]*]] = ptrtoint i40* %a to i64
; ABORT: call void @__hwasan_loadN(i64 %[[A]], i64 5)
; RECOVER: call void @__hwasan_loadN_noabort(i64 %[[A]], i64 5)
; CHECK: %[[B:[^ ]*]] = load i40, i40* %a
; CHECK: ret i40 %[[B]]
entry:
%b = load i40, i40* %a, align 4
ret i40 %b
}
define void @test_store8(i8* %a, i8 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store8(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i8* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2352", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %a, i32 16)
; CHECK: store i8 %b, i8* %a, align 4
; CHECK: ret void
entry:
store i8 %b, i8* %a, align 4
ret void
}
define void @test_store16(i16* %a, i16 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store16(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i16* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2353", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i16* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 17)
; CHECK: store i16 %b, i16* %a, align 4
; CHECK: ret void
entry:
store i16 %b, i16* %a, align 4
ret void
}
define void @test_store32(i32* %a, i32 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store32(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i32* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2354", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i32* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 18)
; CHECK: store i32 %b, i32* %a, align 4
; CHECK: ret void
entry:
store i32 %b, i32* %a, align 4
ret void
}
define void @test_store64(i64* %a, i64 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store64(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i64* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2355", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i64* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 19)
; CHECK: store i64 %b, i64* %a, align 8
; CHECK: ret void
entry:
store i64 %b, i64* %a, align 8
ret void
}
define void @test_store128(i128* %a, i128 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store128(
; RECOVER: %[[A:[^ ]*]] = ptrtoint i128* %a to i64
; RECOVER: %[[B:[^ ]*]] = lshr i64 %[[A]], 56
; RECOVER: %[[PTRTAG:[^ ]*]] = trunc i64 %[[B]] to i8
; RECOVER: %[[C:[^ ]*]] = and i64 %[[A]], 72057594037927935
; RECOVER: %[[D:[^ ]*]] = lshr i64 %[[C]], 4
; RECOVER-DYNAMIC-SHADOW: %[[E:[^ ]*]] = getelementptr i8, i8* %.hwasan.shadow, i64 %4
; RECOVER-ZERO-BASED-SHADOW: %[[E:[^ ]*]] = inttoptr i64 %[[D]] to i8*
; RECOVER: %[[MEMTAG:[^ ]*]] = load i8, i8* %[[E]]
; RECOVER: %[[F:[^ ]*]] = icmp ne i8 %[[PTRTAG]], %[[MEMTAG]]
; RECOVER: br i1 %[[F]], label {{.*}}, label {{.*}}, !prof {{.*}}
; RECOVER: call void asm sideeffect "brk #2356", "{x0}"(i64 %[[A]])
; RECOVER: br label
; ABORT: %[[A:[^ ]*]] = bitcast i128* %a to i8*
; ABORT: call void @llvm.hwasan.check.memaccess.shortgranules(i8* %.hwasan.shadow, i8* %[[A]], i32 20)
; CHECK: store i128 %b, i128* %a, align 16
; CHECK: ret void
entry:
store i128 %b, i128* %a, align 16
ret void
}
define void @test_store40(i40* %a, i40 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store40(
; CHECK: %[[A:[^ ]*]] = ptrtoint i40* %a to i64
; ABORT: call void @__hwasan_storeN(i64 %[[A]], i64 5)
; RECOVER: call void @__hwasan_storeN_noabort(i64 %[[A]], i64 5)
; CHECK: store i40 %b, i40* %a
; CHECK: ret void
entry:
store i40 %b, i40* %a, align 4
ret void
}
define void @test_store_unaligned(i64* %a, i64 %b) sanitize_hwaddress {
; CHECK-LABEL: @test_store_unaligned(
; CHECK: %[[A:[^ ]*]] = ptrtoint i64* %a to i64
; ABORT: call void @__hwasan_storeN(i64 %[[A]], i64 8)
; RECOVER: call void @__hwasan_storeN_noabort(i64 %[[A]], i64 8)
; CHECK: store i64 %b, i64* %a, align 4
; CHECK: ret void
entry:
store i64 %b, i64* %a, align 4
ret void
}
define i8 @test_load_noattr(i8* %a) {
; CHECK-LABEL: @test_load_noattr(
; CHECK-NEXT: entry:
; CHECK-NEXT: %[[B:[^ ]*]] = load i8, i8* %a
; CHECK-NEXT: ret i8 %[[B]]
entry:
%b = load i8, i8* %a, align 4
ret i8 %b
}
define i8 @test_load_notmyattr(i8* %a) sanitize_address {
; CHECK-LABEL: @test_load_notmyattr(
; CHECK-NEXT: entry:
; CHECK-NEXT: %[[B:[^ ]*]] = load i8, i8* %a
; CHECK-NEXT: ret i8 %[[B]]
entry:
%b = load i8, i8* %a, align 4
ret i8 %b
}
define i8 @test_load_addrspace(i8 addrspace(256)* %a) sanitize_hwaddress {
; CHECK-LABEL: @test_load_addrspace(
; CHECK-NEXT: entry:
; CHECK-NEXT: %[[B:[^ ]*]] = load i8, i8 addrspace(256)* %a
; CHECK-NEXT: ret i8 %[[B]]
entry:
%b = load i8, i8 addrspace(256)* %a, align 4
ret i8 %b
}
; CHECK: declare void @__hwasan_init()
; CHECK: define internal void @hwasan.module_ctor() #[[#ATTR:]] comdat {
; CHECK-NEXT: call void @__hwasan_init()
; CHECK-NEXT: ret void
; CHECK-NEXT: }
; CHECK: attributes #[[#ATTR]] = { nounwind }
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