forked from OSchip/llvm-project
118 lines
3.2 KiB
LLVM
118 lines
3.2 KiB
LLVM
; RUN: opt < %s -msan -msan-check-access-address=0 -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 instrumentation mul when one of the operands is a constant.
|
|
|
|
define i64 @MulConst(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, 42949672960000
|
|
ret i64 %y
|
|
}
|
|
|
|
; 42949672960000 = 2**32 * 10000
|
|
; 36 trailing zero bits
|
|
; 68719476736 = 2**36
|
|
|
|
; CHECK-LABEL: @MulConst(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 68719476736
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
define i64 @MulZero(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, 0
|
|
ret i64 %y
|
|
}
|
|
|
|
; CHECK-LABEL: @MulZero(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 0{{$}}
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
define i64 @MulNeg(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, -16
|
|
ret i64 %y
|
|
}
|
|
|
|
; CHECK-LABEL: @MulNeg(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 16
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
define i64 @MulNeg2(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, -48
|
|
ret i64 %y
|
|
}
|
|
|
|
; CHECK-LABEL: @MulNeg2(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 16
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
define i64 @MulOdd(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, 12345
|
|
ret i64 %y
|
|
}
|
|
|
|
; CHECK-LABEL: @MulOdd(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 1
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
define i64 @MulLarge(i64 %x) sanitize_memory {
|
|
entry:
|
|
%y = mul i64 %x, -9223372036854775808
|
|
ret i64 %y
|
|
}
|
|
|
|
; -9223372036854775808 = 0x7000000000000000
|
|
|
|
; CHECK-LABEL: @MulLarge(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], -9223372036854775808
|
|
; CHECK: store i64 [[B]], i64* {{.*}} @__msan_retval_tls
|
|
|
|
define <4 x i32> @MulVectorConst(<4 x i32> %x) sanitize_memory {
|
|
entry:
|
|
%y = mul <4 x i32> %x, <i32 3072, i32 0, i32 -16, i32 -48>
|
|
ret <4 x i32> %y
|
|
}
|
|
|
|
; CHECK-LABEL: @MulVectorConst(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul <4 x i32> [[A]], <i32 1024, i32 0, i32 16, i32 16>
|
|
; CHECK: store <4 x i32> [[B]], <4 x i32>* {{.*}} @__msan_retval_tls
|
|
|
|
|
|
; The constant in multiplication does not have to be a literal integer constant.
|
|
@X = linkonce_odr global i8* null
|
|
define i64 @MulNonIntegerConst(i64 %a) sanitize_memory {
|
|
%mul = mul i64 %a, ptrtoint (i8** @X to i64)
|
|
ret i64 %mul
|
|
}
|
|
|
|
; CHECK-LABEL: @MulNonIntegerConst(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul i64 [[A]], 1
|
|
; CHECK: store i64 [[B]], {{.*}}@__msan_retval_tls
|
|
|
|
define <2 x i64> @MulNonIntegerVectorConst(<2 x i64> %a) sanitize_memory {
|
|
%mul = mul <2 x i64> %a, <i64 3072, i64 ptrtoint (i8** @X to i64)>
|
|
ret <2 x i64> %mul
|
|
}
|
|
|
|
; CHECK-LABEL: @MulNonIntegerVectorConst(
|
|
; CHECK: [[A:%.*]] = load {{.*}} @__msan_param_tls
|
|
; CHECK: [[B:%.*]] = mul <2 x i64> [[A]], <i64 1024, i64 1>
|
|
; CHECK: store <2 x i64> [[B]], {{.*}}@__msan_retval_tls
|