http://bugs.llvm.org/show_bug.cgi?id=32136
Bug ID: 32136
Summary: Copy Elision code produces assertion failure for i1
parameters
Product: libraries
Version: 4.0
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: ma...@braunis.de
CC: llvm-bugs@lists.llvm.org
Swift triggers an assert in the copy elision code now. We believe this to be
cause by i1 parameters. I was able to craft a small reproducer:
target triple = "x86_64-apple-macosx"
@g = common global i8* null, align 8
define void @foo(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i1 %a6)
{
%tmp = alloca i1, align 4
store i1 %a6, i1* %tmp, align 4
%ptr = bitcast i1* %tmp to i8*
store i8* %ptr, i8** @g, align 8
ret void
}
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