[Bug c/88778] New: Odd Complex float load
hjl.tools at gmail dot com
gcc-bugzilla@gcc.gnu.org
Wed Jan 9 21:31:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88778
Bug ID: 88778
Summary: Odd Complex float load
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: ubizjak at gmail dot com
Target Milestone: ---
[hjl@gnu-cfl-1 fp16-9]$ cat y.i
_Complex float
foo (_Complex float *p)
{
return *p;
}
[hjl@gnu-cfl-1 fp16-9]$ gcc -S -O2 y.i
[hjl@gnu-cfl-1 fp16-9]$ cat y.s
.file "y.i"
.text
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
movss 4(%rdi), %xmm0
movss (%rdi), %xmm1
movss %xmm0, -4(%rsp)
movss %xmm1, -8(%rsp)
movq -8(%rsp), %xmm0
ret
.cfi_endproc
A single load should be used.
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