Regressions on master at commit r16-39 vs commit r16-38 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r16-39 vs commit r16-38 on Linux/x86_64
New failures:
FAIL: gcc.target/i386/avx512fp16-trunc-extendvnhf.c scan-assembler-times 
vcvtpd2phx[ \\t]+[^{\n]*[^\n\r]*%xmm[0-9]+(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx512fp16-trunc-extendvnhf.c scan-assembler-times 
vcvtpd2phx[ \\t]+[^{\n]*[^\n\r]*%xmm[0-9]+(?:\n|[ \\t]+#) 1

New passes: