http://llvm.org/bugs/show_bug.cgi?id=19332
Bug ID: 19332
Summary: [ARM64] Unrecognized MLA in DAG selection phase
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Test case test1.c:
--------------------------------------------------------------
#include "arm_neon.h"
int32x4_t dotest_mla(int32x4_t in0) {
return vmlaq_lane_s32(in0,
in0,
vget_high_s32(in0),
1);
}
--------------------------------------------------------------
To run under -O0
TO RUN: clang -O0 --target=arm64-linux-gnu -c test1.c
The error message is as following:
Unrecognized MLA.
UNREACHABLE executed at
/home/haoliu01/src/always-clean/lib/Target/ARM6/ARM64ISelDAGToDAG.cpp:462!
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