From 9e82027db8b7ce3a941e8f9b20732753a40318e2 Mon Sep 17 00:00:00 2001 From: George Balatsouras Date: Wed, 10 Mar 2021 16:01:43 -0800 Subject: [PATCH] [dfsan] Update atomics.ll test Remove hard-coded shadow width references and remove irrelevant instructions. Reviewed By: stephan.yichao.zhao Differential Revision: https://reviews.llvm.org/D98376 --- .../Instrumentation/DataFlowSanitizer/atomics.ll | 439 ++++++++++----------- 1 file changed, 201 insertions(+), 238 deletions(-) diff --git a/llvm/test/Instrumentation/DataFlowSanitizer/atomics.ll b/llvm/test/Instrumentation/DataFlowSanitizer/atomics.ll index 7aa21ba..f5a225b 100644 --- a/llvm/test/Instrumentation/DataFlowSanitizer/atomics.ll +++ b/llvm/test/Instrumentation/DataFlowSanitizer/atomics.ll @@ -1,323 +1,286 @@ -; RUN: opt < %s -dfsan -dfsan-fast-16-labels=true -S | FileCheck %s --check-prefix=CHECK +; RUN: opt < %s -dfsan -dfsan-fast-16-labels=true -S | FileCheck %s --check-prefixes=CHECK,CHECK16 ; ; The patterns about origins cannot be tested until the origin tracking feature is complete. - 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" -; atomicrmw xchg: store clean shadow/origin, return clean shadow/origin +; CHECK: @__dfsan_arg_tls = external thread_local(initialexec) global [[TLS_ARR:\[100 x i64\]]] +; CHECK: @__dfsan_retval_tls = external thread_local(initialexec) global [[TLS_ARR]] +; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]] +; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]] define i32 @AtomicRmwXchg(i32* %p, i32 %x) { entry: + ; COMM: atomicrmw xchg: store clean shadow/origin, return clean shadow/origin + + ; CHECK-LABEL: @"dfs$AtomicRmwXchg" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK-NEXT: atomicrmw xchg i32* %p, i32 %x seq_cst + ; CHECK-NEXT: store i[[#SBITS]] 0, i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK-NEXT: ret i32 + %0 = atomicrmw xchg i32* %p, i32 %x seq_cst ret i32 %0 } -; CHECK-LABEL: @"dfs$AtomicRmwXchg" -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK-NOT: @__dfsan_arg_tls -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK-NEXT: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK-NEXT: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK-NEXT: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK-NEXT: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK-NEXT: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK-NEXT: atomicrmw xchg i32* %p, i32 %x seq_cst -; CHECK-NEXT: store i16 0, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 -; CHECK-NEXT: ret i32 - - -; atomicrmw max: exactly the same as above - define i32 @AtomicRmwMax(i32* %p, i32 %x) { + ; COMM: atomicrmw max: exactly the same as above + + ; CHECK-LABEL: @"dfs$AtomicRmwMax" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK-NEXT: atomicrmw max i32* %p, i32 %x seq_cst + ; CHECK-NEXT: store i[[#SBITS]] 0, i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK-NEXT: ret i32 + entry: %0 = atomicrmw max i32* %p, i32 %x seq_cst ret i32 %0 } -; CHECK-LABEL: @"dfs$AtomicRmwMax" -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK-NOT: @__dfsan_arg_tls -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK-NEXT: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK-NEXT: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK-NEXT: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK-NEXT: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK-NEXT: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK-NEXT: atomicrmw max i32* %p, i32 %x seq_cst -; CHECK-NEXT: store i16 0, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 -; CHECK-NEXT: ret i32 - - -; cmpxchg: store clean shadow/origin, return clean shadow/origin define i32 @Cmpxchg(i32* %p, i32 %a, i32 %b) { + ; COMM: cmpxchg: store clean shadow/origin, return clean shadow/origin + + ; CHECK-LABEL: @"dfs$Cmpxchg" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK-NEXT: %pair = cmpxchg i32* %p, i32 %a, i32 %b seq_cst seq_cst + ; CHECK: store i[[#SBITS]] 0, i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK-NEXT: ret i32 + entry: %pair = cmpxchg i32* %p, i32 %a, i32 %b seq_cst seq_cst %0 = extractvalue { i32, i1 } %pair, 0 ret i32 %0 } -; CHECK-LABEL: @"dfs$Cmpxchg" -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK-NOT: @__dfsan_arg_tls -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK-NEXT: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK-NEXT: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK-NEXT: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK-NEXT: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK-NEXT: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK-NEXT: %pair = cmpxchg i32* %p, i32 %a, i32 %b seq_cst seq_cst -; CHECK: store i16 0, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 -; CHECK-NEXT: ret i32 - - -; relaxed cmpxchg: bump up to "release monotonic" define i32 @CmpxchgMonotonic(i32* %p, i32 %a, i32 %b) { + ; COMM: relaxed cmpxchg: bump up to "release monotonic" + + ; CHECK-LABEL: @"dfs$CmpxchgMonotonic" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK-NEXT: %pair = cmpxchg i32* %p, i32 %a, i32 %b release monotonic + ; CHECK: store i[[#SBITS]] 0, i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK-NEXT: ret i32 + entry: %pair = cmpxchg i32* %p, i32 %a, i32 %b monotonic monotonic %0 = extractvalue { i32, i1 } %pair, 0 ret i32 %0 } -; CHECK-LABEL: @"dfs$CmpxchgMonotonic" -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK-NOT: @__dfsan_arg_tls -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK-NEXT: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK-NEXT: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK-NEXT: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK-NEXT: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK-NEXT: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK-NEXT: %pair = cmpxchg i32* %p, i32 %a, i32 %b release monotonic -; CHECK: store i16 0, i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN-NEXT: store i32 0, i32* @__dfsan_retval_origin_tls, align 4 -; CHECK-NEXT: ret i32 - -; atomic load: load shadow value after app value define i32 @AtomicLoad(i32* %p) { + ; COMM: atomic load: load shadow value after app value + + ; CHECK-LABEL: @"dfs$AtomicLoad" + ; CHECK_ORIGIN: %[[#PO:]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 + ; CHECK: %[[#PS:]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align 2 + ; CHECK: %a = load atomic i32, i32* %p seq_cst, align 16 + ; CHECK: %[[#SHADOW_PTR:]] = inttoptr i64 {{.*}} to i[[#SBITS]]* + ; CHECK_ORIGIN: %[[#ORIGIN_PTR:]] = inttoptr i64 {{.*}} to i32* + ; CHECK_ORIGIN: %[[#AO:]] = load i32, i32* %[[#ORIGIN_PTR]], align 16 + ; CHECK: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK: load i[[#NUM_BITS]], i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: %[[#AP_S:]] = or i[[#SBITS]] {{.*}}, %[[#PS]] + ; CHECK_ORIGIN: %[[#PS_NZ:]] = icmp ne i[[#SBITS]] %[[#PS]], 0 + ; CHECK_ORIGIN: %[[#AP_O:]] = select i1 %[[#PS_NZ]], i32 %[[#PO]], i32 %[[#AO]] + ; CHECK: store i[[#SBITS]] %[[#AP_S]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN: store i32 %[[#AP_O]], i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK: ret i32 %a + entry: %a = load atomic i32, i32* %p seq_cst, align 16 ret i32 %a } -; CHECK-LABEL: @"dfs$AtomicLoad" -; CHECK_ORIGIN: [[PO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 -; CHECK: [[PS:%.*]] = load i16, i16* bitcast ([100 x i64]* @__dfsan_arg_tls to i16*), align 2 -; CHECK: %a = load atomic i32, i32* %p seq_cst, align 16 -; CHECK: [[INTP:%.*]] = ptrtoint {{.*}} %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK_ORIGIN: [[ORIGIN_ADDR:%.*]] = add i64 [[OFFSET]], 35184372088832 -; CHECK_ORIGIN: [[ORIGIN_PTR:%.*]] = inttoptr i64 [[ORIGIN_ADDR]] to i32* -; CHECK_ORIGIN: [[AO:%.*]] = load i32, i32* [[ORIGIN_PTR]], align 16 -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: [[SHADOW64:%.*]] = load i64, i64* [[SHADOW_PTR64]], align 2 -; CHECK: [[SHADOW64_H32:%.*]] = lshr i64 [[SHADOW64]], 32 -; CHECK: [[SHADOW64_HL32:%.*]] = or i64 [[SHADOW64]], [[SHADOW64_H32]] -; CHECK: [[SHADOW64_HL32_H16:%.*]] = lshr i64 [[SHADOW64_HL32]], 16 -; CHECK: [[SHADOW64_HL32_HL16:%.*]] = or i64 [[SHADOW64_HL32]], [[SHADOW64_HL32_H16]] -; CHECK: [[AS:%.*]] = trunc i64 [[SHADOW64_HL32_HL16]] to i16 -; CHECK: [[AP_S:%.*]] = or i16 [[AS]], [[PS]] -; CHECK_ORIGIN: [[PS_NZ:%.*]] = icmp ne i16 [[PS]], 0 -; CHECK_ORIGIN: [[AP_O:%.*]] = select i1 [[PS_NZ]], i32 [[PO]], i32 [[AO]] -; CHECK: store i16 [[AP_S]], i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN: store i32 [[AP_O]], i32* @__dfsan_retval_origin_tls, align 4 -; CHECK: ret i32 %a - - -; atomic load: load shadow value after app value define i32 @AtomicLoadAcquire(i32* %p) { + ; COMM: atomic load: load shadow value after app value + + ; CHECK-LABEL: @"dfs$AtomicLoadAcquire" + ; CHECK_ORIGIN: %[[#PO:]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 + ; CHECK: %[[#PS:]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align 2 + ; CHECK: %a = load atomic i32, i32* %p acquire, align 16 + ; CHECK: %[[#SHADOW_PTR:]] = inttoptr i64 {{.*}} to i[[#SBITS]]* + ; CHECK_ORIGIN: %[[#ORIGIN_PTR:]] = inttoptr i64 {{.*}} to i32* + ; CHECK_ORIGIN: %[[#AO:]] = load i32, i32* %[[#ORIGIN_PTR]], align 16 + ; CHECK: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK: load i[[#NUM_BITS]], i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: %[[#AP_S:]] = or i[[#SBITS]] {{.*}}, %[[#PS]] + ; CHECK_ORIGIN: %[[#PS_NZ:]] = icmp ne i[[#SBITS]] %[[#PS]], 0 + ; CHECK_ORIGIN: %[[#AP_O:]] = select i1 %[[#PS_NZ]], i32 %[[#PO]], i32 %[[#AO]] + ; CHECK: store i[[#SBITS]] %[[#AP_S]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN: store i32 %[[#AP_O]], i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK: ret i32 %a + entry: %a = load atomic i32, i32* %p acquire, align 16 ret i32 %a } -; CHECK-LABEL: @"dfs$AtomicLoadAcquire" -; CHECK_ORIGIN: [[PO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 -; CHECK: [[PS:%.*]] = load i16, i16* bitcast ([100 x i64]* @__dfsan_arg_tls to i16*), align 2 -; CHECK: %a = load atomic i32, i32* %p acquire, align 16 -; CHECK: [[INTP:%.*]] = ptrtoint {{.*}} %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK_ORIGIN: [[ORIGIN_ADDR:%.*]] = add i64 [[OFFSET]], 35184372088832 -; CHECK_ORIGIN: [[ORIGIN_PTR:%.*]] = inttoptr i64 [[ORIGIN_ADDR]] to i32* -; CHECK_ORIGIN: [[AO:%.*]] = load i32, i32* [[ORIGIN_PTR]], align 16 -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: [[SHADOW64:%.*]] = load i64, i64* [[SHADOW_PTR64]], align 2 -; CHECK: [[SHADOW64_H32:%.*]] = lshr i64 [[SHADOW64]], 32 -; CHECK: [[SHADOW64_HL32:%.*]] = or i64 [[SHADOW64]], [[SHADOW64_H32]] -; CHECK: [[SHADOW64_HL32_H16:%.*]] = lshr i64 [[SHADOW64_HL32]], 16 -; CHECK: [[SHADOW64_HL32_HL16:%.*]] = or i64 [[SHADOW64_HL32]], [[SHADOW64_HL32_H16]] -; CHECK: [[AS:%.*]] = trunc i64 [[SHADOW64_HL32_HL16]] to i16 -; CHECK: [[AP_S:%.*]] = or i16 [[AS]], [[PS]] -; CHECK_ORIGIN: [[PS_NZ:%.*]] = icmp ne i16 [[PS]], 0 -; CHECK_ORIGIN: [[AP_O:%.*]] = select i1 [[PS_NZ]], i32 [[PO]], i32 [[AO]] -; CHECK: store i16 [[AP_S]], i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN: store i32 [[AP_O]], i32* @__dfsan_retval_origin_tls, align 4 -; CHECK: ret i32 %a - - -; atomic load monotonic: bump up to load acquire define i32 @AtomicLoadMonotonic(i32* %p) { + ; COMM: atomic load monotonic: bump up to load acquire + + ; CHECK-LABEL: @"dfs$AtomicLoadMonotonic" + ; CHECK_ORIGIN: %[[#PO:]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 + ; CHECK: %[[#PS:]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align 2 + ; CHECK: %a = load atomic i32, i32* %p acquire, align 16 + ; CHECK: %[[#SHADOW_PTR:]] = inttoptr i64 {{.*}} to i[[#SBITS]]* + ; CHECK_ORIGIN: %[[#ORIGIN_PTR:]] = inttoptr i64 {{.*}} to i32* + ; CHECK_ORIGIN: %[[#AO:]] = load i32, i32* %[[#ORIGIN_PTR]], align 16 + ; CHECK: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK: load i[[#NUM_BITS]], i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: %[[#AP_S:]] = or i[[#SBITS]] {{.*}}, %[[#PS]] + ; CHECK_ORIGIN: %[[#PS_NZ:]] = icmp ne i[[#SBITS]] %[[#PS]], 0 + ; CHECK_ORIGIN: %[[#AP_O:]] = select i1 %[[#PS_NZ]], i32 %[[#PO]], i32 %[[#AO]] + ; CHECK: store i[[#SBITS]] %[[#AP_S]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN: store i32 %[[#AP_O]], i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK: ret i32 %a + entry: %a = load atomic i32, i32* %p monotonic, align 16 ret i32 %a } -; CHECK-LABEL: @"dfs$AtomicLoadMonotonic" -; CHECK_ORIGIN: [[PO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 -; CHECK: [[PS:%.*]] = load i16, i16* bitcast ([100 x i64]* @__dfsan_arg_tls to i16*), align 2 -; CHECK: %a = load atomic i32, i32* %p acquire, align 16 -; CHECK: [[INTP:%.*]] = ptrtoint {{.*}} %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK_ORIGIN: [[ORIGIN_ADDR:%.*]] = add i64 [[OFFSET]], 35184372088832 -; CHECK_ORIGIN: [[ORIGIN_PTR:%.*]] = inttoptr i64 [[ORIGIN_ADDR]] to i32* -; CHECK_ORIGIN: [[AO:%.*]] = load i32, i32* [[ORIGIN_PTR]], align 16 -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: [[SHADOW64:%.*]] = load i64, i64* [[SHADOW_PTR64]], align 2 -; CHECK: [[SHADOW64_H32:%.*]] = lshr i64 [[SHADOW64]], 32 -; CHECK: [[SHADOW64_HL32:%.*]] = or i64 [[SHADOW64]], [[SHADOW64_H32]] -; CHECK: [[SHADOW64_HL32_H16:%.*]] = lshr i64 [[SHADOW64_HL32]], 16 -; CHECK: [[SHADOW64_HL32_HL16:%.*]] = or i64 [[SHADOW64_HL32]], [[SHADOW64_HL32_H16]] -; CHECK: [[AS:%.*]] = trunc i64 [[SHADOW64_HL32_HL16]] to i16 -; CHECK: [[AP_S:%.*]] = or i16 [[AS]], [[PS]] -; CHECK_ORIGIN: [[PS_NZ:%.*]] = icmp ne i16 [[PS]], 0 -; CHECK_ORIGIN: [[AP_O:%.*]] = select i1 [[PS_NZ]], i32 [[PO]], i32 [[AO]] -; CHECK: store i16 [[AP_S]], i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN: store i32 [[AP_O]], i32* @__dfsan_retval_origin_tls, align 4 -; CHECK: ret i32 %a - - -; atomic load unordered: bump up to load acquire - define i32 @AtomicLoadUnordered(i32* %p) { + ; COMM: atomic load unordered: bump up to load acquire + + ; CHECK-LABEL: @"dfs$AtomicLoadUnordered" + ; CHECK_ORIGIN: %[[#PO:]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 + ; CHECK: %[[#PS:]] = load i[[#SBITS]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_arg_tls to i[[#SBITS]]*), align 2 + ; CHECK: %a = load atomic i32, i32* %p acquire, align 16 + ; CHECK: %[[#SHADOW_PTR:]] = inttoptr i64 {{.*}} to i[[#SBITS]]* + ; CHECK_ORIGIN: %[[#ORIGIN_PTR:]] = inttoptr i64 {{.*}} to i32* + ; CHECK_ORIGIN: %[[#AO:]] = load i32, i32* %[[#ORIGIN_PTR]], align 16 + ; CHECK: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK: load i[[#NUM_BITS]], i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: %[[#AP_S:]] = or i[[#SBITS]] {{.*}}, %[[#PS]] + ; CHECK_ORIGIN: %[[#PS_NZ:]] = icmp ne i[[#SBITS]] %[[#PS]], 0 + ; CHECK_ORIGIN: %[[#AP_O:]] = select i1 %[[#PS_NZ]], i32 %[[#PO]], i32 %[[#AO]] + ; CHECK: store i[[#SBITS]] %[[#AP_S]], i[[#SBITS]]* bitcast ([[TLS_ARR]]* @__dfsan_retval_tls to i[[#SBITS]]*), align 2 + ; CHECK_ORIGIN: store i32 %[[#AP_O]], i32* @__dfsan_retval_origin_tls, align 4 + ; CHECK: ret i32 %a + entry: %a = load atomic i32, i32* %p unordered, align 16 ret i32 %a } -; CHECK-LABEL: @"dfs$AtomicLoadUnordered" -; CHECK_ORIGIN: [[PO:%.*]] = load i32, i32* getelementptr inbounds ([200 x i32], [200 x i32]* @__dfsan_arg_origin_tls, i64 0, i64 0), align 4 -; CHECK: [[PS:%.*]] = load i16, i16* bitcast ([100 x i64]* @__dfsan_arg_tls to i16*), align 2 -; CHECK: %a = load atomic i32, i32* %p acquire, align 16 -; CHECK: [[INTP:%.*]] = ptrtoint {{.*}} %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK_ORIGIN: [[ORIGIN_ADDR:%.*]] = add i64 [[OFFSET]], 35184372088832 -; CHECK_ORIGIN: [[ORIGIN_PTR:%.*]] = inttoptr i64 [[ORIGIN_ADDR]] to i32* -; CHECK_ORIGIN: [[AO:%.*]] = load i32, i32* [[ORIGIN_PTR]], align 16 -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: [[SHADOW64:%.*]] = load i64, i64* [[SHADOW_PTR64]], align 2 -; CHECK: [[SHADOW64_H32:%.*]] = lshr i64 [[SHADOW64]], 32 -; CHECK: [[SHADOW64_HL32:%.*]] = or i64 [[SHADOW64]], [[SHADOW64_H32]] -; CHECK: [[SHADOW64_HL32_H16:%.*]] = lshr i64 [[SHADOW64_HL32]], 16 -; CHECK: [[SHADOW64_HL32_HL16:%.*]] = or i64 [[SHADOW64_HL32]], [[SHADOW64_HL32_H16]] -; CHECK: [[AS:%.*]] = trunc i64 [[SHADOW64_HL32_HL16]] to i16 -; CHECK: [[AP_S:%.*]] = or i16 [[AS]], [[PS]] -; CHECK_ORIGIN: [[PS_NZ:%.*]] = icmp ne i16 [[PS]], 0 -; CHECK_ORIGIN: [[AP_O:%.*]] = select i1 [[PS_NZ]], i32 [[PO]], i32 [[AO]] -; CHECK: store i16 [[AP_S]], i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align 2 -; CHECK_ORIGIN: store i32 [[AP_O]], i32* @__dfsan_retval_origin_tls, align 4 -; CHECK: ret i32 %a - - -; atomic store: store clean shadow value before app value - define void @AtomicStore(i32* %p, i32 %x) { + ; COMM: atomic store: store clean shadow value before app value + + ; CHECK-LABEL: @"dfs$AtomicStore" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK_ORIGIN-NOT: 35184372088832 + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: store atomic i32 %x, i32* %p seq_cst, align 16 + ; CHECK: ret void + entry: store atomic i32 %x, i32* %p seq_cst, align 16 ret void } -; CHECK-LABEL: @"dfs$AtomicStore" -; CHECK-NOT: @__dfsan_arg_tls -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK_ORIGIN-NOT: 35184372088832 -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK: store atomic i32 %x, i32* %p seq_cst, align 16 -; CHECK: ret void - - -; atomic store: store clean shadow value before app value - define void @AtomicStoreRelease(i32* %p, i32 %x) { + ; COMM: atomic store: store clean shadow value before app value + + ; CHECK-LABEL: @"dfs$AtomicStoreRelease" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK_ORIGIN-NOT: 35184372088832 + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: store atomic i32 %x, i32* %p release, align 16 + ; CHECK: ret void + entry: store atomic i32 %x, i32* %p release, align 16 ret void } -; CHECK-LABEL: @"dfs$AtomicStoreRelease" -; CHECK-NOT: @__dfsan_arg_tls -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK_ORIGIN-NOT: 35184372088832 -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK: store atomic i32 %x, i32* %p release, align 16 -; CHECK: ret void - - -; atomic store monotonic: bumped up to store release - define void @AtomicStoreMonotonic(i32* %p, i32 %x) { + ; COMM: atomic store monotonic: bumped up to store release + + ; CHECK-LABEL: @"dfs$AtomicStoreMonotonic" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK_ORIGIN-NOT: 35184372088832 + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: store atomic i32 %x, i32* %p release, align 16 + ; CHECK: ret void + entry: store atomic i32 %x, i32* %p monotonic, align 16 ret void } -; CHECK-LABEL: @"dfs$AtomicStoreMonotonic" -; CHECK-NOT: @__dfsan_arg_tls -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK_ORIGIN-NOT: 35184372088832 -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK: store atomic i32 %x, i32* %p release, align 16 -; CHECK: ret void - - -; atomic store unordered: bumped up to store release - define void @AtomicStoreUnordered(i32* %p, i32 %x) { + ; COMM: atomic store unordered: bumped up to store release + + ; CHECK-LABEL: @"dfs$AtomicStoreUnordered" + ; CHECK-NOT: @__dfsan_arg_origin_tls + ; CHECK-NOT: @__dfsan_arg_tls + ; CHECK_ORIGIN-NOT: 35184372088832 + ; CHECK: %[[#INTP:]] = ptrtoint i32* %p to i64 + ; CHECK-NEXT: %[[#SHADOW_ADDR:INTP+1]] = and i64 %[[#INTP]], [[#%.10d,MASK:]] + ; CHECK16-NEXT: %[[#SHADOW_ADDR:INTP+2]] = mul i64 %[[#INTP+1]], 2 + ; CHECK-NEXT: %[[#SHADOW_PTR:]] = inttoptr i64 %[[#SHADOW_ADDR]] to i[[#SBITS]]* + ; CHECK-NEXT: %[[#SHADOW_PTR64:]] = bitcast i[[#SBITS]]* %[[#SHADOW_PTR]] to i[[#NUM_BITS:mul(SBITS,4)]]* + ; CHECK-NEXT: store i[[#NUM_BITS]] 0, i[[#NUM_BITS]]* %[[#SHADOW_PTR64]], align [[#SBYTES]] + ; CHECK: store atomic i32 %x, i32* %p release, align 16 + ; CHECK: ret void + entry: store atomic i32 %x, i32* %p unordered, align 16 ret void } - -; CHECK-LABEL: @"dfs$AtomicStoreUnordered" -; CHECK-NOT: @__dfsan_arg_tls -; CHECK-NOT: @__dfsan_arg_origin_tls -; CHECK_ORIGIN-NOT: 35184372088832 -; CHECK: [[INTP:%.*]] = ptrtoint i32* %p to i64 -; CHECK: [[OFFSET:%.*]] = and i64 [[INTP]], -123145302310913 -; CHECK: [[SHADOW_ADDR:%.*]] = mul i64 [[OFFSET]], 2 -; CHECK: [[SHADOW_PTR:%.*]] = inttoptr i64 [[SHADOW_ADDR]] to i16* -; CHECK: [[SHADOW_PTR64:%.*]] = bitcast i16* [[SHADOW_PTR]] to i64* -; CHECK: store i64 0, i64* [[SHADOW_PTR64]], align 2 -; CHECK: store atomic i32 %x, i32* %p release, align 16 -; CHECK: ret void -- 2.7.4