mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-23 04:52:54 +02:00
77684f300a
Summary: The DAG combine transformation that was generating the aarch64_neon_vcvtfp2fxs node was assuming that all inputs where legal and wasn't accounting that the input could be a v4f64 if we're trying to do the transformation before legalization. We now bail out in this case. All illegal types besides v4f64 were already rejected. Fixes https://llvm.org/bugs/show_bug.cgi?id=28877. Reviewers: jmolloy Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D23261 llvm-svn: 278002
25 lines
853 B
LLVM
25 lines
853 B
LLVM
; RUN: llc < %s -mtriple=aarch64-linux-eabi -o - | FileCheck %s
|
|
|
|
%struct.a= type { i64, i64, i64, i64 }
|
|
|
|
; DAG combine will try to perform a transformation that creates a vcvtfp2fxs
|
|
; with a v4f64 input. Since v4i64 is not legal we should bail out. We can
|
|
; pottentially still create the vcvtfp2fxs node after legalization (but on a
|
|
; v2f64).
|
|
|
|
; CHECK-LABEL: fun1
|
|
define void @fun1() local_unnamed_addr {
|
|
entry:
|
|
%mul = fmul <4 x double> zeroinitializer, <double 6.553600e+04, double 6.553600e+04, double 6.553600e+04, double 6.553600e+04>
|
|
%toi = fptosi <4 x double> %mul to <4 x i64>
|
|
%ptr = getelementptr inbounds %struct.a, %struct.a* undef, i64 0, i32 2
|
|
%elem = extractelement <4 x i64> %toi, i32 1
|
|
store i64 %elem, i64* %ptr, align 8
|
|
call void @llvm.trap()
|
|
unreachable
|
|
}
|
|
|
|
; Function Attrs: noreturn nounwind
|
|
declare void @llvm.trap()
|
|
|