Re: [PATCH] [x86] Fix uninitialized operands[2] in vec_unpacks_hi_v4sf.

2024-11-24 Thread Hongtao Liu
On Fri, Nov 22, 2024 at 9:16 PM Richard Biener wrote: > > On Fri, 22 Nov 2024, liuhongt wrote: > > > It could cause weired spill in RA when register pressure is high. > > > > Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}. > > Ok for trunk? > > > > BTW, It's difficult to get a decent tes

Re: [PATCH] [x86] Fix uninitialized operands[2] in vec_unpacks_hi_v4sf.

2024-11-22 Thread Richard Biener
On Fri, 22 Nov 2024, liuhongt wrote: > It could cause weired spill in RA when register pressure is high. > > Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}. > Ok for trunk? > > BTW, It's difficult to get a decent testcase for the issue since the spill > is not exposed in simple testcas

[PATCH] [x86] Fix uninitialized operands[2] in vec_unpacks_hi_v4sf.

2024-11-22 Thread liuhongt
It could cause weired spill in RA when register pressure is high. Bootstrapped and regtested on x86_64-pc-linux-gnu{-m32,}. Ok for trunk? BTW, It's difficult to get a decent testcase for the issue since the spill is not exposed in simple testcase. gcc/ChangeLog: PR target/117562