From a6995a3d42955f1f207c14be1634daf225b5ab3f Mon Sep 17 00:00:00 2001 From: Volodymyr Paprotski Date: Tue, 6 May 2025 16:26:21 +0000 Subject: [PATCH] 8354473: Incorrect results for compress/expand tests with -XX:+EnableX86ECoreOpts Reviewed-by: jbhateja, sviswanathan, epeter --- src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp b/src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp index 19e25cde2ec..177be6e59f7 100644 --- a/src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp +++ b/src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp @@ -5731,7 +5731,7 @@ void C2_MacroAssembler::vector_compress_expand_avx2(int opcode, XMMRegister dst, // in a permute table row contains either a valid permute index or a -1 (default) // value, this can potentially be used as a blending mask after // compressing/expanding the source vector lanes. - vblendvps(dst, dst, xtmp, permv, vec_enc, false, permv); + vblendvps(dst, dst, xtmp, permv, vec_enc, true, permv); } void C2_MacroAssembler::vector_compress_expand(int opcode, XMMRegister dst, XMMRegister src, KRegister mask,