Bug report
Cecil Ward
cecil at cecilward.com
Sun Apr 30 16:25:53 UTC 2023
ldc2 internal assert failure during compile:
LDC v1.31.0 targeting AMD64. (I ran this under the Matt Godbolt
Compiler Explorer.)
command line flags:-O3 -release
ldc2:
/home/runner/work/llvm-project/llvm-project/llvm/lib/IR/Instructions.cpp:3701: llvm::SExtInst::SExtInst(llvm::Value *, llvm::Type *, const llvm::Twine &, llvm::BasicBlock *): Assertion `castIsValid(getOpcode(), S, Ty) && "Illegal SExt"' failed.
Stack dump without symbol names (ensure you have llvm-symbolizer
in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to
point to it):
/opt/compiler-explorer/ldc-latest-ci/ldc/bin/ldc2(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamEi+0x23)[0x557adb795ae3]
Compiler returned:
== D source code ==
import std.stdint;
import core.simd;
uint64_t hashi( const uint64_t * p, size_t len )
{
uint64_t s = 0;
for ( size_t i = 0; i < len; i++ )
{
s ^= ( p[i] * 509 ) ^ ( p[i] >>> 9 );
}
return s;
}
alias uint64_256_t = ulong4;
alias uint64x4_t = uint64_256_t;
alias uint64_32_t = uint64_256_t;
uint64_t hashv( const uint64_256_t * p, size_t len )
{
uint64_256_t s1 = [0, 0, 0, 0];
for ( size_t i = 0; i < len; i++ )
{
const x = p[i];
s1 ^= (x * 509) ^ (x >>> 9);
}
const nsz = (*p).sizeof * 8 / 64;
const uint64_t[nsz] v = cast(uint64_t[nsz]) s1;
uint64_t s = 0;
for ( size_t i = 0; i < len; i++ )
{
s ^= v[i];
}
return s;
}
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