[LLVMdev] target hexagon and sparcv9 lead to llc crack
Triple Yang
triple.yang at gmail.com
Tue Jul 3 01:35:04 PDT 2012
hi,
does someone notice that llc options "-march=hexagon" and
"-march-sparcv9" do not work well under llvm 3.1?
Following is a brief description:
(1) test.c file
int cmp(int i, int j) {
return (i>j)?1:0;
}
(2) test.ll file (clang -emit-llvm test.c -S -o test.ll)
; ModuleID = 'test.c'
target datalayout =
"e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
target triple = "i386-pc-linux-gnu"
define i32 @cmp(i32 %i, i32 %j) nounwind {
entry:
%i.addr = alloca i32, align 4
%j.addr = alloca i32, align 4
store i32 %i, i32* %i.addr, align 4
store i32 %j, i32* %j.addr, align 4
%0 = load i32* %i.addr, align 4
%1 = load i32* %j.addr, align 4
%cmp = icmp sgt i32 %0, %1
%cond = select i1 %cmp, i32 1, i32 0
ret i32 %cond
}
(3) llc -march=sparcv9 test.ll -o test.s
ExpandIntegerResult #0: 0xaf38960: i64 = FrameIndex<1> [ORD=2] [ID=0]
Do not know how to expand the result of this operator!
UNREACHABLE executed at
/home/yangyy/git.repo/llvm.git/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:1089!
0 llc 0x08c2512b
Stack dump:
0. Program arguments: llc -march=sparcv9 test.ll -o test.s
1. Running pass 'Function Pass Manager' on module 'test.ll'.
2. Running pass 'SPARC DAG->DAG Pattern Instruction Selection' on
function '@cmp'
Aborted (core dumped)
(4) llc -march=hexagon test.ll -o test.s
'' is not a recognized processor for this target (ignoring processor)
0 llc 0x08c2512b
Stack dump:
0. Program arguments: llc -march=hexagon test.ll -o test.s
1. Running pass 'Function Pass Manager' on module 'test.ll'.
2. Running pass 'Hexagon DAG->DAG Pattern Instruction Selection' on
function '@cmp'
Segmentation fault (core dumped)
Can some one give a explanation?
Best regard.
--
æšćć (Yang Yongyong)
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