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Bug 20981 – Runtime segfault for inlined __simd_sto

Status: RESOLVED
Resolution: FIXED
Severity: regression
Priority: P1
Component: dmd
Product: D
Version: D2
Platform: x86_64
OS: Linux
Creation time: 2020-06-26T18:01:39Z
Last change time: 2020-07-01T10:34:59Z
Keywords: wrong-code
Assigned to: No Owner
Creator: moonlightsentinel

Comments

Comment #0 by moonlightsentinel — 2020-06-26T18:01:39Z

The following code segfaults on linux64 when compiled with -O -inline: import core.simd; // Import need for intrinsics void main() { void16 a; simd_sto!(XMM.STOUPS)(a, a); } void16 simd_sto(XMM opcode)(void16 op1, void16 op2) { return cast(void16) __simd_sto(opcode, op1, op2); }

Comment #1 by moonlightsentinel — 2020-06-26T18:02:06Z

Digger blames this PR: https://github.com/dlang/dmd/pull/6815

Comment #2 by moonlightsentinel — 2020-06-28T20:59:43Z

Sorry, mistakenly closed this issue

Comment #3 by bugzilla — 2020-06-29T07:32:41Z

Ok, I can duplicate the problem. It's faulting when run - the compiler itself isn't faulting.

Comment #4 by dlang-bot — 2020-07-01T10:34:59Z

dlang/dmd pull request #11347 "fix Issue 20981 - Segfault for inlined __simd_sto" was merged into master: - 097051d0fbe3b5969ef74bac390dec07e6732092 by Walter Bright: fix Issue 20981 - Segfault for inlined __simd_sto https://github.com/dlang/dmd/pull/11347