derek.holloway
7502bf64a4
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75 lines
5.2 KiB
LLVM
75 lines
5.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s
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; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan -msan-kernel=1 2>&1 | FileCheck %s --check-prefixes=KERNEL
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; Test that code using va_start can be compiled on i386.
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
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target triple = "i386-unknown-linux-gnu"
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define void @VaStart(ptr %s, ...) {
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; CHECK-LABEL: define void @VaStart(
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; CHECK-SAME: ptr [[S:%.*]], ...) {
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; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr @__msan_va_arg_overflow_size_tls, align 4
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; CHECK-NEXT: [[TMP5:%.*]] = alloca i8, i32 [[TMP4]], align 8
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; CHECK-NEXT: call void @llvm.memset.p0.i32(ptr align 8 [[TMP5]], i8 0, i32 [[TMP4]], i1 false)
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; CHECK-NEXT: [[TMP3:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP4]], i32 800)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 8 [[TMP5]], ptr align 8 @__msan_va_arg_tls, i32 [[TMP3]], i1 false)
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; CHECK-NEXT: call void @llvm.donothing()
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; CHECK-NEXT: [[VL:%.*]] = alloca ptr, align 4
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; CHECK-NEXT: [[TMP0:%.*]] = ptrtoint ptr [[VL]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[TMP0]], 2147483647
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; CHECK-NEXT: [[TMP2:%.*]] = inttoptr i32 [[TMP1]] to ptr
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; CHECK-NEXT: call void @llvm.memset.p0.i32(ptr align 4 [[TMP2]], i8 0, i32 4, i1 false)
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; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[VL]] to i32
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; CHECK-NEXT: [[TMP8:%.*]] = and i32 [[TMP7]], 2147483647
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; CHECK-NEXT: [[TMP9:%.*]] = inttoptr i32 [[TMP8]] to ptr
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[TMP9]], i8 0, i64 4, i1 false)
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; CHECK-NEXT: call void @llvm.va_start.p0(ptr [[VL]])
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; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[VL]] to i32
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; CHECK-NEXT: [[TMP11:%.*]] = inttoptr i32 [[TMP10]] to ptr
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; CHECK-NEXT: [[TMP12:%.*]] = load ptr, ptr [[TMP11]], align 4
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; CHECK-NEXT: [[TMP13:%.*]] = ptrtoint ptr [[TMP12]] to i32
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; CHECK-NEXT: [[TMP14:%.*]] = and i32 [[TMP13]], 2147483647
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; CHECK-NEXT: [[TMP15:%.*]] = inttoptr i32 [[TMP14]] to ptr
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[TMP15]], ptr align 4 [[TMP5]], i32 [[TMP4]], i1 false)
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; CHECK-NEXT: ret void
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;
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; KERNEL-LABEL: define void @VaStart(
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; KERNEL-SAME: ptr [[S:%.*]], ...) {
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; KERNEL-NEXT: [[TMP0:%.*]] = call ptr @__msan_get_context_state()
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; KERNEL-NEXT: [[PARAM_SHADOW:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 0
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; KERNEL-NEXT: [[RETVAL_SHADOW:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 1
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; KERNEL-NEXT: [[VA_ARG_SHADOW:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 2
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; KERNEL-NEXT: [[VA_ARG_ORIGIN:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 3
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; KERNEL-NEXT: [[VA_ARG_OVERFLOW_SIZE:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 4
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; KERNEL-NEXT: [[PARAM_ORIGIN:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 5
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; KERNEL-NEXT: [[RETVAL_ORIGIN:%.*]] = getelementptr { [100 x i64], [100 x i64], [100 x i64], [100 x i64], i64, [200 x i32], i32, i32 }, ptr [[TMP0]], i32 0, i32 6
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; KERNEL-NEXT: [[TMP2:%.*]] = load i32, ptr [[VA_ARG_OVERFLOW_SIZE]], align 4
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; KERNEL-NEXT: [[TMP3:%.*]] = alloca i8, i32 [[TMP2]], align 8
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; KERNEL-NEXT: call void @llvm.memset.p0.i32(ptr align 8 [[TMP3]], i8 0, i32 [[TMP2]], i1 false)
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; KERNEL-NEXT: [[TMP4:%.*]] = call i32 @llvm.umin.i32(i32 [[TMP2]], i32 800)
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; KERNEL-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 8 [[TMP3]], ptr align 8 [[VA_ARG_SHADOW]], i32 [[TMP4]], i1 false)
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; KERNEL-NEXT: call void @llvm.donothing()
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; KERNEL-NEXT: [[VL:%.*]] = alloca ptr, align 4
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; KERNEL-NEXT: call void @__msan_unpoison_alloca(ptr [[VL]], i32 4)
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; KERNEL-NEXT: [[TMP5:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_store_1(ptr [[VL]])
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; KERNEL-NEXT: [[TMP6:%.*]] = extractvalue { ptr, ptr } [[TMP5]], 0
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; KERNEL-NEXT: [[TMP7:%.*]] = extractvalue { ptr, ptr } [[TMP5]], 1
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; KERNEL-NEXT: call void @llvm.memset.p0.i64(ptr align 8 [[TMP6]], i8 0, i64 4, i1 false)
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; KERNEL-NEXT: call void @llvm.va_start.p0(ptr [[VL]])
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; KERNEL-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[VL]] to i32
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; KERNEL-NEXT: [[TMP9:%.*]] = inttoptr i32 [[TMP8]] to ptr
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; KERNEL-NEXT: [[TMP10:%.*]] = load ptr, ptr [[TMP9]], align 4
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; KERNEL-NEXT: [[TMP11:%.*]] = call { ptr, ptr } @__msan_metadata_ptr_for_store_1(ptr [[TMP10]])
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; KERNEL-NEXT: [[TMP12:%.*]] = extractvalue { ptr, ptr } [[TMP11]], 0
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; KERNEL-NEXT: [[TMP13:%.*]] = extractvalue { ptr, ptr } [[TMP11]], 1
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; KERNEL-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[TMP12]], ptr align 4 [[TMP3]], i32 [[TMP2]], i1 false)
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; KERNEL-NEXT: ret void
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;
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%vl = alloca ptr, align 4
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call void @llvm.va_start(ptr %vl)
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ret void
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}
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declare void @llvm.va_start(ptr)
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