Put PREFETCHW back to march=broadwell

PREFETCHW should be both in march=broadwell and march=silvermont.
I move PREFETCHW from march=broadwell to march=silvermont in previous
patch.

gcc/ChangeLog:

	* config/i386/i386.h: Add PREFETCHW to march=broadwell.
	* doc/invoke.texi: Put PREFETCHW back to relation arch.

2 files changed, 29 insertions, 24 deletions

diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 3be7551..b8ae16e 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -2518,7 +2518,8 @@ const wide_int_bitmask PTA_IVYBRIDGE = PTA_SANDYBRIDGE | PTA_FSGSBASE
   | PTA_RDRND | PTA_F16C;
 const wide_int_bitmask PTA_HASWELL = PTA_IVYBRIDGE | PTA_AVX2 | PTA_BMI
   | PTA_BMI2 | PTA_LZCNT | PTA_FMA | PTA_MOVBE | PTA_HLE;
-const wide_int_bitmask PTA_BROADWELL = PTA_HASWELL | PTA_ADX | PTA_RDSEED;
+const wide_int_bitmask PTA_BROADWELL = PTA_HASWELL | PTA_ADX | PTA_RDSEED
+  | PTA_PRFCHW;
 const wide_int_bitmask PTA_SKYLAKE = PTA_BROADWELL | PTA_AES | PTA_CLFLUSHOPT
   | PTA_XSAVEC | PTA_XSAVES | PTA_SGX;
 const wide_int_bitmask PTA_SKYLAKE_AVX512 = PTA_SKYLAKE | PTA_AVX512F
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b3a2c7c..6ce67e6 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -29583,13 +29583,13 @@ BMI, BMI2 and F16C instruction set support.
 @item broadwell
 Intel Broadwell CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
 SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2,
-F16C, RDSEED and ADCX instruction set support.
+F16C, RDSEED ADCX and PREFETCHW instruction set support.
 
 @item skylake
 Intel Skylake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
 SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA,
-BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC and XSAVES instruction set
-support.
+BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC and XSAVES
+instruction set support.
 
 @item bonnell
 Intel Bonnell CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3 and SSSE3
@@ -29618,32 +29618,33 @@ MOVDIR64B, CLDEMOTE and WAITPKG instruction set support.
 @item knl
 Intel Knight's Landing CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA,
-BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHWT1, AVX512F, AVX512PF, AVX512ER and
-AVX512CD instruction set support.
+BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, PREFETCHWT1, AVX512F, AVX512PF,
+AVX512ER and AVX512CD instruction set support.
 
 @item knm
 Intel Knights Mill CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA,
-BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHWT1, AVX512F, AVX512PF, AVX512ER, AVX512CD,
-AVX5124VNNIW, AVX5124FMAPS and AVX512VPOPCNTDQ instruction set support.
+BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, PREFETCHWT1, AVX512F, AVX512PF,
+AVX512ER, AVX512CD, AVX5124VNNIW, AVX5124FMAPS and AVX512VPOPCNTDQ instruction
+set support.
 
 @item skylake-avx512
 Intel Skylake Server CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA,
-BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F,
+BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F,
 CLWB, AVX512VL, AVX512BW, AVX512DQ and AVX512CD instruction set support.
 
 @item cannonlake
 Intel Cannonlake Server CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2,
 SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE,
-RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC,
+RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC,
 XSAVES, AVX512F, AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VBMI,
 AVX512IFMA, SHA and UMIP instruction set support.
 
 @item icelake-client
 Intel Icelake Client CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2,
 SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE,
-RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC,
+RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC,
 XSAVES, AVX512F, AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VBMI,
 AVX512IFMA, SHA, CLWB, UMIP, RDPID, GFNI, AVX512VBMI2, AVX512VPOPCNTDQ,
 AVX512BITALG, AVX512VNNI, VPCLMULQDQ, VAES instruction set support.
@@ -29651,7 +29652,7 @@ AVX512BITALG, AVX512VNNI, VPCLMULQDQ, VAES instruction set support.
 @item icelake-server
 Intel Icelake Server CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2,
 SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE,
-RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC,
+RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC,
 XSAVES, AVX512F, AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VBMI,
 AVX512IFMA, SHA, CLWB, UMIP, RDPID, GFNI, AVX512VBMI2, AVX512VPOPCNTDQ,
 AVX512BITALG, AVX512VNNI, VPCLMULQDQ, VAES, PCONFIG and WBNOINVD instruction
@@ -29660,37 +29661,40 @@ set support.
 @item cascadelake
 Intel Cascadelake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
 SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI,
-BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, CLWB,
+BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, CLWB,
 AVX512VL, AVX512BW, AVX512DQ, AVX512CD and AVX512VNNI instruction set support.
 
 @item cooperlake
 Intel cooperlake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
 SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI,
-BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, CLWB,
+BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, CLWB,
 AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VNNI and AVX512BF16 instruction
 set support.
 
 @item tigerlake
 Intel Tigerlake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
 SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI,
-BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, AVX512VL,
-AVX512BW, AVX512DQ, AVX512CD, AVX512VBMI, AVX512IFMA, SHA, CLWB, UMIP, RDPID,
-GFNI, AVX512VBMI2, AVX512VPOPCNTDQ, AVX512BITALG, AVX512VNNI, VPCLMULQDQ, VAES,
-PCONFIG, WBNOINVD, MOVDIRI, MOVDIR64B, AVX512VP2INTERSECT and KEYLOCKER
+BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F,
+AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VBMI, AVX512IFMA, SHA, CLWB, UMIP,
+RDPID, GFNI, AVX512VBMI2, AVX512VPOPCNTDQ, AVX512BITALG, AVX512VNNI, VPCLMULQDQ,
+VAES, PCONFIG, WBNOINVD, MOVDIRI, MOVDIR64B, AVX512VP2INTERSECT and KEYLOCKER
 instruction set support.
 
 @item sapphirerapids
 Intel sapphirerapids CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
 SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND,
-FMA, BMI, BMI2, F16C, RDSEED, ADCX, CLFLUSHOPT, XSAVEC, XSAVES, AVX512F, CLWB,
-AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VNNI, AVX512BF16, MOVDIRI,
-MOVDIR64B, AVX512VP2INTERSECT, ENQCMD, CLDEMOTE, PTWRITE, WAITPKG, SERIALIZE,
-TSXLDTRK, UINTR, AMX-BF16, AMX-TILE and AMX-INT8 instruction set support.
+FMA, BMI, BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES,
+AVX512F, CLWB, AVX512VL, AVX512BW, AVX512DQ, AVX512CD, AVX512VNNI, AVX512BF16,
+MOVDIRI, MOVDIR64B, AVX512VP2INTERSECT, ENQCMD, CLDEMOTE, PTWRITE, WAITPKG,
+SERIALIZE, TSXLDTRK, UINTR, AMX-BF16, AMX-TILE, AMX-INT8 and AVX-VNNI
+instruction set support.
 
 @item alderlake
 Intel Alderlake CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3, SSSE3,
-SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, CLDEMOTE,
-PTWRITE, WAITPKG, SERIALIZE, KEYLOCKER and HRESET instruction set support.
+SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI,
+BMI2, F16C, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVEC, XSAVES, CLDEMOTE,
+PTWRITE, WAITPKG, SERIALIZE, KEYLOCKER, HRESET and AVX-VNNI instruction set
+support.
 
 @item k6
 AMD K6 CPU with MMX instruction set support.