https://issues.dlang.org/show_bug.cgi?id=21490
Issue ID: 21490
Summary: Front end detection logic for SSE4.1 is failing when
using -O
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
Adding -O to test/runnable/testxmm.d results in a seg fault when testxmm is run
because a PMULLD instruction is generated as a result of:
static if (__traits(compiles, { v1 = v2 * v3; })) // SSE4.1
succeeding, yet my 64 bit linux box does not support that instruction. Weirdly,
this only goes awry with -O.
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