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llvm-mirror/test/Instrumentation/MemorySanitizer/byval-alignment.ll
Matt Arsenault 4bf7d5872e OpaquePtr: Bulk update tests to use typed byval
Upgrade of the IR text tests should be the only thing blocking making
typed byval mandatory. Partially done through regex and partially
manual.
2020-11-20 14:00:46 -05:00

22 lines
809 B
LLVM

; Test that copy alignment for byval arguments is limited by param-tls slot alignment.
; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck \
; RUN: %s
; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%struct.S = type { i64, i64, i64, [8 x i8] }
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 {{.*}} add {{.*}} ptrtoint {{.*}} @__msan_param_tls {{.*}} i64 8) {{.*}}, i8* align 8 {{.*}}, i64 32, i1 false)
define void @Caller() sanitize_memory {
entry:
%agg.tmp = alloca %struct.S, align 16
call void @Callee(i32 1, %struct.S* byval(%struct.S) align 16 %agg.tmp)
ret void
}
declare void @Callee(i32, %struct.S* byval(%struct.S) align 16)