Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2019-01-25 08:19:26 +00:00
parent 279aa8f685
commit ce8e504569
28478 changed files with 39 additions and 3866962 deletions

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@@ -1,30 +0,0 @@
; RUN: opt -functionattrs -S < %s | FileCheck %s
; This checks for an iterator wraparound bug in FunctionAttrs. The previous
; "incorrect" behavior was inferring readonly for the %x argument in @caller.
; Inferring readonly for %x *is* actually correct, since @va_func is marked
; readonly, but FunctionAttrs was inferring readonly for the wrong reasons (and
; we _need_ the readonly on @va_func to trigger the problematic code path). It
; is possible that in the future FunctionAttrs becomes smart enough to infer
; readonly for %x for the right reasons, and at that point this test will have
; to be marked invalid.
declare void @llvm.va_start(i8*)
declare void @llvm.va_end(i8*)
define void @va_func(i32* readonly %b, ...) readonly nounwind {
; CHECK-LABEL: define void @va_func(i32* nocapture readonly %b, ...)
entry:
%valist = alloca i8
call void @llvm.va_start(i8* %valist)
call void @llvm.va_end(i8* %valist)
%x = call i32 @caller(i32* %b)
ret void
}
define i32 @caller(i32* %x) {
; CHECK-LABEL: define i32 @caller(i32* nocapture %x)
entry:
call void(i32*,...) @va_func(i32* null, i32 0, i32 0, i32 0, i32* %x)
ret i32 42
}