https://bugs.llvm.org/show_bug.cgi?id=33475
Bug ID: 33475
Summary: r305468 causes 'Assertion failed:
(MemVT.getScalarType().bitsLT(VT.getScalarType()) &&
"Should only be an extending load, not truncating!"),
function getLoad'
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: ahmed.bouga...@gmail.com
CC: llvm-bugs@lists.llvm.org
With code such as:
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios10.0.0"
define void @repro(i8* %p0, i8* %p1) noimplicitfloat {
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %p0, i8* %p1, i64 32, i32 4, i1
false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i32, i1)
(note the "noimplicitfloat"), we end up with an i128 merged operation, and
since r305468, we try to build an extload from i128 to i64 (because that's the
type to which i128 is legalizable), which is impossible.
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