diff --git a/gcc/config/i386/x86-tune-costs.h b/gcc/config/i386/x86-tune-costs.h
index ea34a939c68..6c9066c84cc 100644
--- a/gcc/config/i386/x86-tune-costs.h
+++ b/gcc/config/i386/x86-tune-costs.h
@@ -1897,15 +1897,15 @@ struct processor_costs skylake_cost = {
   8,					/* "large" insn */
   17,					/* MOVE_RATIO */
   17,					/* CLEAR_RATIO */
-  {4, 4, 4},				/* cost of loading integer registers
+  {6, 6, 6},				/* cost of loading integer registers
 					   in QImode, HImode and SImode.
 					   Relative to reg-reg move (2).  */
-  {6, 6, 6},				/* cost of storing integer registers */
-  {6, 6, 6, 10, 20},			/* cost of loading SSE register
+  {8, 8, 8},				/* cost of storing integer registers */
+  {8, 8, 8, 8, 16},			/* cost of loading SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
   {8, 8, 8, 8, 16},			/* cost of storing SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
-  {6, 6, 6, 10, 20},			/* cost of unaligned loads.  */
+  {8, 8, 8, 8, 16},			/* cost of unaligned loads.  */
   {8, 8, 8, 8, 16},			/* cost of unaligned stores.  */
   2, 2, 4,				/* cost of moving XMM,YMM,ZMM register */
   6,					/* cost of moving SSE register to integer.  */
@@ -2023,15 +2023,15 @@ struct processor_costs icelake_cost = {
   8,					/* "large" insn */
   17,					/* MOVE_RATIO */
   17,					/* CLEAR_RATIO */
-  {4, 4, 4},				/* cost of loading integer registers
+  {6, 6, 6},				/* cost of loading integer registers
 					   in QImode, HImode and SImode.
 					   Relative to reg-reg move (2).  */
-  {6, 6, 6},				/* cost of storing integer registers */
-  {6, 6, 6, 10, 20},			/* cost of loading SSE register
+  {8, 8, 8},				/* cost of storing integer registers */
+  {8, 8, 8, 8, 16},			/* cost of loading SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
   {8, 8, 8, 8, 16},			/* cost of storing SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
-  {6, 6, 6, 10, 20},			/* cost of unaligned loads.  */
+  {8, 8, 8, 8, 16},			/* cost of unaligned loads.  */
   {8, 8, 8, 8, 16},			/* cost of unaligned stores.  */
   2, 2, 4,				/* cost of moving XMM,YMM,ZMM register */
   6,					/* cost of moving SSE register to integer.  */
@@ -2146,13 +2146,13 @@ struct processor_costs alderlake_cost = {
   {6, 6, 6},				/* cost of loading integer registers
 					   in QImode, HImode and SImode.
 					   Relative to reg-reg move (2).  */
-  {6, 6, 6},				/* cost of storing integer registers */
-  {6, 6, 6, 10, 15},			/* cost of loading SSE register
+  {8, 8, 8},				/* cost of storing integer registers */
+  {8, 8, 8, 10, 15},			/* cost of loading SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
-  {6, 6, 6, 10, 15},			/* cost of storing SSE register
+  {8, 8, 8, 10, 15},			/* cost of storing SSE register
 					   in 32bit, 64bit, 128bit, 256bit and 512bit */
-  {6, 6, 6, 10, 15},			/* cost of unaligned loads.  */
-  {6, 6, 6, 10, 15},			/* cost of unaligned storess.  */
+  {8, 8, 8, 10, 15},			/* cost of unaligned loads.  */
+  {8, 8, 8, 10, 15},			/* cost of unaligned storess.  */
   2, 3, 4,				/* cost of moving XMM,YMM,ZMM register */
   6,					/* cost of moving SSE register to integer.  */
   18, 6,				/* Gather load static, per_elt.  */
diff --git a/gcc/testsuite/gcc.target/i386/pr91446.c b/gcc/testsuite/gcc.target/i386/pr91446.c
index 067bf43f698..0243ca3ea68 100644
--- a/gcc/testsuite/gcc.target/i386/pr91446.c
+++ b/gcc/testsuite/gcc.target/i386/pr91446.c
@@ -21,4 +21,4 @@ foo (unsigned long long width, unsigned long long height,
   bar (&t);
 }
 
-/* { dg-final { scan-assembler-times "xmm\[0-9\]" 0 } } */
+/* { dg-final { scan-assembler-times "vmovdqa\[^\n\r\]*xmm\[0-9\]" 2 } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr99881.c b/gcc/testsuite/gcc.target/i386/pr99881.c
index a1ec1d1ba8a..3e087eb2ed7 100644
--- a/gcc/testsuite/gcc.target/i386/pr99881.c
+++ b/gcc/testsuite/gcc.target/i386/pr99881.c
@@ -1,7 +1,7 @@
 /* PR target/99881.  */
 /* { dg-do compile { target { ! ia32 } } } */
 /* { dg-options "-Ofast -march=skylake" } */
-/* { dg-final { scan-assembler-not "xmm\[0-9\]" } } */
+/* { dg-final { scan-assembler-not "xmm\[0-9\]" { xfail *-*-* } } } */
 
 void
 foo (int* __restrict a, int n, int c)
