https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79299
Bug ID: 79299
Summary: [7 Regression] Operand size mismatch for `vpgatherqd'
w/ -O3 -masm=intel -mavx512bw
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: assemble-failure
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: x86_64-pc-linux-gnu
When compiling the following snippet w/ -O3 -masm=intel -mavx512bw (and other
flavors of AVX-512) using gcc-7.0.0-alpha20170129 snapshot, gas 2.27 emits the
"operand size mismatch" error for instruction vpgatherqd:
int
q9 (int b7, int dr)
{
int **ov;
int rk = &b7;
while (dr != 0)
{
while (b7 != 0)
++b7;
rk += **ov;
++dr;
}
return rk;
}
% x86_64-pc-linux-gnu-gcc-7.0.0-alpha20170129 -O3 -masm=intel -mavx512bw -c -w
xivubswo.c
/tmp/cc27Zzec.s: Assembler messages:
/tmp/cc27Zzec.s:38: Error: operand size mismatch for `vpgatherqd'
/tmp/cc27Zzec.s:39: Error: operand size mismatch for `vpgatherqd'
