https://llvm.org/bugs/show_bug.cgi?id=25193
Bug ID: 25193
Summary: [AVX-512] LLVM ERROR: Cannot select
Product: tools
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
Assignee: unassignedb...@nondot.org
Reporter: shishpanov2...@yandex.ru
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 15082
--> https://llvm.org/bugs/attachment.cgi?id=15082&action=edit
Source IR, which causes the error.
The out from llc:
LLVM ERROR: Cannot select: t152: i1 = select_cc undef:i32, t235, t187, t190,
seteq:ch
t19: i32 = undef
t235: i32 = extract_vector_elt t233, Constant:i32<1>
t233: v4i32 = extract_subvector t77, Constant:i32<0>
t77: v16i32 = bitcast t31
t31: v8i64 = shl t28, t364
t28: v8i64 = bitcast t27
t27: v16i32 = BUILD_VECTOR Constant:i32<0>, Constant:i32<0>,
Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>,
Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>,
Constant:i32<0>, Constant:i32<0>, Constant:i32<0>, Constant:i32<0>,
Constant:i32<0>, Constant:i32<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t364: v8i64,ch = load<LD64[ConstantPool]> t0, t256, undef:i32
t256: i32 = X86ISD::Wrapper TargetConstantPool:i32<<16 x i32> <i32
32, i32 0, i32 32, i32 0, i32 32, i32 0, i32 32, i32 0, i32 32, i32 0, i32 32,
i32 0, i32 32, i32 0, i32 32, i32 0>> 0
t255: i32 = TargetConstantPool<<16 x i32> <i32 32, i32 0, i32 32,
i32 0, i32 32, i32 0, i32 32, i32 0, i32 32, i32 0, i32 32, i32 0, i32 32, i32
0, i32 32, i32 0>> 0
t19: i32 = undef
t25: i32 = Constant<0>
t47: i32 = Constant<1>
t187: i1 = truncate t362
t362: i8 = and t361, Constant:i8<1>
t361: i8 = X86ISD::SETCC_CARRY Constant:i8<2>, t184:1
t185: i8 = Constant<2>
t184: i32,i32 = X86ISD::SUB undef:i32, t234
t19: i32 = undef
t234: i32 = extract_vector_elt t233, Constant:i32<0>
t233: v4i32 = extract_subvector t77, Constant:i32<0>
t77: v16i32 = bitcast t31
t31: v8i64 = shl t28, t364
t28: v8i64 = bitcast t27
t364: v8i64,ch = load<LD64[ConstantPool]> t0, t256, undef:i32
t25: i32 = Constant<0>
t25: i32 = Constant<0>
t301: i8 = Constant<1>
t190: i1 = truncate t358
t358: i8 = and t357, Constant:i8<1>
t357: i8 = X86ISD::SETCC_CARRY Constant:i8<2>, t188:1
t185: i8 = Constant<2>
t188: i32,i32 = X86ISD::SUB undef:i32, t235
t19: i32 = undef
t235: i32 = extract_vector_elt t233, Constant:i32<1>
t233: v4i32 = extract_subvector t77, Constant:i32<0>
t77: v16i32 = bitcast t31
t31: v8i64 = shl t28, t364
t28: v8i64 = bitcast t27
t364: v8i64,ch = load<LD64[ConstantPool]> t0, t256, undef:i32
t25: i32 = Constant<0>
t47: i32 = Constant<1>
t301: i8 = Constant<1>
In function: f_fu
keys for llc: -mcpu=knl -march=x86
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