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67d6f58389
Summary: These instructions ignore parts of the input vectors which makes the default MSan handling too strict and causes false positive reports. Reviewers: vitalybuka, RKSimon, thakis Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D73374
73 lines
3.8 KiB
LLVM
73 lines
3.8 KiB
LLVM
; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck \
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; RUN: %s
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; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s
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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck %s --check-prefixes=CHECK,ORIGIN
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; REQUIRES: x86-registered-target
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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"
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target triple = "x86_64-unknown-linux-gnu"
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declare <2 x i64> @llvm.x86.pclmulqdq(<2 x i64>, <2 x i64>, i8 immarg) nounwind readnone
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declare <4 x i64> @llvm.x86.pclmulqdq.256(<4 x i64>, <4 x i64>, i8 immarg) nounwind readnone
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declare <8 x i64> @llvm.x86.pclmulqdq.512(<8 x i64>, <8 x i64>, i8 immarg) nounwind readnone
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define <2 x i64> @clmul00(<2 x i64> %a, <2 x i64> %b) sanitize_memory {
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entry:
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%0 = tail call <2 x i64> @llvm.x86.pclmulqdq(<2 x i64> %a, <2 x i64> %b, i8 0)
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ret <2 x i64> %0
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}
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; CHECK-LABEL: @clmul00
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; CHECK: %[[S0:.*]] = load <2 x i64>, <2 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[S1:.*]] = load <2 x i64>, <2 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[SHUF1:.*]] = shufflevector <2 x i64> %[[S1]], <2 x i64> undef, <2 x i32> zeroinitializer
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; CHECK: %[[SHUF0:.*]] = shufflevector <2 x i64> %[[S0]], <2 x i64> undef, <2 x i32> zeroinitializer
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; CHECK: %[[SRET:.*]] = or <2 x i64> %[[SHUF1]], %[[SHUF0]]
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; CHECK: store <2 x i64> %[[SRET]], <2 x i64>* {{.*}}@__msan_retval_tls
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define <2 x i64> @clmul10(<2 x i64> %a, <2 x i64> %b) sanitize_memory {
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entry:
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%0 = tail call <2 x i64> @llvm.x86.pclmulqdq(<2 x i64> %a, <2 x i64> %b, i8 16)
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ret <2 x i64> %0
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}
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; CHECK-LABEL: @clmul10
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; CHECK: %[[S0:.*]] = load <2 x i64>, <2 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[S1:.*]] = load <2 x i64>, <2 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[SHUF1:.*]] = shufflevector <2 x i64> %[[S1]], <2 x i64> undef, <2 x i32> zeroinitializer
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; CHECK: %[[SHUF0:.*]] = shufflevector <2 x i64> %[[S0]], <2 x i64> undef, <2 x i32> <i32 1, i32 1>
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; CHECK: %[[SRET:.*]] = or <2 x i64> %[[SHUF1]], %[[SHUF0]]
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; CHECK: store <2 x i64> %[[SRET]], <2 x i64>* {{.*}}@__msan_retval_tls
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define <4 x i64> @clmul11_256(<4 x i64> %a, <4 x i64> %b) sanitize_memory {
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entry:
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%0 = tail call <4 x i64> @llvm.x86.pclmulqdq.256(<4 x i64> %a, <4 x i64> %b, i8 17)
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ret <4 x i64> %0
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}
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; CHECK-LABEL: @clmul11_256
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; CHECK: %[[S0:.*]] = load <4 x i64>, <4 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[S1:.*]] = load <4 x i64>, <4 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[SHUF1:.*]] = shufflevector <4 x i64> %[[S1]], <4 x i64> undef, <4 x i32> <i32 1, i32 1, i32 3, i32 3>
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; CHECK: %[[SHUF0:.*]] = shufflevector <4 x i64> %[[S0]], <4 x i64> undef, <4 x i32> <i32 1, i32 1, i32 3, i32 3>
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; CHECK: %[[SRET:.*]] = or <4 x i64> %[[SHUF1]], %[[SHUF0]]
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; CHECK: store <4 x i64> %[[SRET]], <4 x i64>* {{.*}}@__msan_retval_tls
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define <8 x i64> @clmul01_512(<8 x i64> %a, <8 x i64> %b) sanitize_memory {
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entry:
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%0 = tail call <8 x i64> @llvm.x86.pclmulqdq.512(<8 x i64> %a, <8 x i64> %b, i8 16)
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ret <8 x i64> %0
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}
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; CHECK-LABEL: @clmul01_512
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; CHECK: %[[S0:.*]] = load <8 x i64>, <8 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[S1:.*]] = load <8 x i64>, <8 x i64>* {{.*}}@__msan_param_tls
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; CHECK: %[[SHUF1:.*]] = shufflevector <8 x i64> %[[S1]], <8 x i64> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6>
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; CHECK: %[[SHUF0:.*]] = shufflevector <8 x i64> %[[S0]], <8 x i64> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7>
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; CHECK: %[[SRET:.*]] = or <8 x i64> %[[SHUF1]], %[[SHUF0]]
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; ORIGIN: %[[FLAT:.*]] = bitcast <8 x i64> %[[SHUF0]] to i512
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; ORIGIN: %[[I:.*]] = icmp ne i512 %[[FLAT]], 0
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; ORIGIN: %[[O:.*]] = select i1 %[[I]],
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; CHECK: store <8 x i64> %[[SRET]], <8 x i64>* {{.*}}@__msan_retval_tls
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; ORIGIN: store i32 %[[O]], i32* @__msan_retval_origin_tls
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