https://bugs.llvm.org/show_bug.cgi?id=47278
Bug ID: 47278
Summary: codegen regression with i386-linux
Product: new-bugs
Version: 11.0
Hardware: PC
OS: Linux
Status: NEW
Severity: release blocker
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: and...@ziglang.org
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org
The zig standard library test "PackedIntArray" is regressed with LLVM 11 RC1
and RC2.
The test case is here:
https://github.com/ziglang/zig/blob/f9bd049c89e4d2b4d3f51a937ec2114c3cac9176/lib/std/packed_int_array.zig#L321
In this bug report I will provide a pure LLVM IR reproduction, which you can
run like this:
~/local/llvm10-release/bin/clang-10 -o test test.ll -nostartfiles
-nodefaultlibs -target i386-unknown-linux-unknown compiler_rt.ll c.ll
-fuse-ld=$HOME/local/llvm10-release/bin/ld.lld -static
./test
echo $?
(prints 0)
~/local/llvm11-release/bin/clang-11 -o test test.ll -nostartfiles
-nodefaultlibs -target i386-unknown-linux-unknown compiler_rt.ll c.ll
-fuse-ld=$HOME/local/llvm11-release/bin/ld.lld -static
./test
echo $?
(prints 1)
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