https://llvm.org/bugs/show_bug.cgi?id=26232
Bug ID: 26232
Summary: [AVX-512] llc fails with with setcce
Product: tools
Version: 3.8
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
Assignee: unassignedb...@nondot.org
Reporter: vsevolod.livins...@frtk.ru
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 15679
--> https://llvm.org/bugs/attachment.cgi?id=15679&action=edit
Reproducer.
When I compile with llc -mcpu=knl -march=x86 reproducer.ll it fails with error,
while with -mcpu=core-avx2 it works fine.
LLVM ERROR: Cannot select: t31: i1 = setcce undef:i32, Constant:i32<0>, t44:1,
setlt:ch
t26: i32 = undef
t25: i32 = Constant<0>
t44: i32,i32 = X86ISD::SUB undef:i32, Constant:i32<65536>
t26: i32 = undef
t24: i32 = Constant<65536>
In function: f_f
llc --version
LLVM (http://llvm.org/):
LLVM version 3.8.0
Optimized build with assertions.
Built Jan 20 2016 (07:57:05).
Default target: x86_64-unknown-linux-gnu
Host CPU: haswell
clang version 3.8.0 (branches/release_38)
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