https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109954
Bug ID: 109954
Summary: x86-64's -m32 does not conform to documentation
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jbeulich at suse dot com
Target Milestone: ---
Quote from doc: "The -m32 option sets int, long, and pointer types to 32 bits,
and generates code that runs on any i386 system." While it may well be that the
documentation is misleading, I also won't exclude that generated code is wrong
instead for a compiler that defaults to generate 64-bit code: cmov<cc> or SSE
insns are happily used by the compiler, for example. Respective pre-processor
symbols are also defined, including __k8__ and __FXSR__.
Just to make it explicit: No -march= or -mtune= options were used, just -m32.
