| ; 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 |