Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll

@@ -1,53 +0,0 @@
-; RUN: opt < %s -msan -msan-check-access-address=0 -msan-check-constant-shadow=1 -msan-track-origins=1 -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"
-
-; Test that returning a literal undef from main() triggers an MSan warning.
-
-; main() is special: it inserts check for the return value
-define i32 @main() nounwind uwtable sanitize_memory {
-entry:
-  ret i32 undef
-}
-
-; CHECK-LABEL: @main
-; CHECK: call void @__msan_warning_noreturn
-; CHECK: ret i32 undef
-
-
-; This function stores known initialized value.
-; Expect 2 stores: one for the shadow (0), one for the value (42), but no origin.
-define void @StoreConstant(i32* nocapture %p) nounwind uwtable sanitize_memory {
-entry:
-  store i32 42, i32* %p, align 4
-  ret void
-}
-
-; CHECK-LABEL: @StoreConstant
-; CHECK-NOT: store i32
-; CHECK: store i32 0,
-; CHECK-NOT: store i32
-; CHECK: store i32 42,
-; CHECK-NOT: store i32
-; CHECK: ret void
-
-
-; This function stores known uninitialized value.
-; Expect 3 stores: shadow, value and origin.
-; Expect no icmp(s): everything here is unconditional.
-define void @StoreUndef(i32* nocapture %p) nounwind uwtable sanitize_memory {
-entry:
-  store i32 undef, i32* %p, align 4
-  ret void
-}
-
-; CHECK-LABEL: @StoreUndef
-; CHECK-NOT: icmp
-; CHECK: store i32
-; CHECK-NOT: icmp
-; CHECK: store i32
-; CHECK-NOT: icmp
-; CHECK: store i32
-; CHECK-NOT: icmp
-; CHECK: ret void