KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

gallivm: Altivec vector max/min intrisics 

This patch adds the PPC Altivec instrics max/min instruction for
supported Altivec vector types (16xi8, 8xi16, 4xi32, 4xf32).

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Adhemerval Zanella 2012-11-22 11:03:11 -06:00 committed by José Fonseca
parent 31c63b058e
commit 2ea7d3dabd
1 changed files with 54 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
src/gallium/auxiliary/gallivm/lp_bld_arit.c
View File

@ -116,7 +116,12 @@ lp_build_min_simple(struct lp_build_context *bld,
}
}
}
else if (util_cpu_caps.has_sse2 && type.length >= 2) {
else if (type.floating && util_cpu_caps.has_altivec) {
if (type.width == 32 && type.length == 4) {
intrinsic = "llvm.ppc.altivec.vminfp";
intr_size = 128;
}
} else if (util_cpu_caps.has_sse2 && type.length >= 2) {
intr_size = 128;
if ((type.width == 8 || type.width == 16) &&
(type.width * type.length <= 64) &&
@ -144,6 +149,27 @@ lp_build_min_simple(struct lp_build_context *bld,
intrinsic = "llvm.x86.sse41.pminsd";
}
}
} else if (util_cpu_caps.has_altivec) {
intr_size = 128;
if (type.width == 8) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vminub";
} else {
intrinsic = "llvm.ppc.altivec.vminsb";
}
} else if (type.width == 16) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vminuh";
} else {
intrinsic = "llvm.ppc.altivec.vminsh";
}
} else if (type.width == 32) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vminuw";
} else {
intrinsic = "llvm.ppc.altivec.vminsw";
}
}
}
if(intrinsic) {
@ -206,7 +232,12 @@ lp_build_max_simple(struct lp_build_context *bld,
}
}
}
else if (util_cpu_caps.has_sse2 && type.length >= 2) {
else if (type.floating && util_cpu_caps.has_altivec) {
if (type.width == 32 || type.length == 4) {
intrinsic = "llvm.ppc.altivec.vmaxfp";
intr_size = 128;
}
} else if (util_cpu_caps.has_sse2 && type.length >= 2) {
intr_size = 128;
if ((type.width == 8 || type.width == 16) &&
(type.width * type.length <= 64) &&
@ -235,6 +266,27 @@ lp_build_max_simple(struct lp_build_context *bld,
intrinsic = "llvm.x86.sse41.pmaxsd";
}
}
} else if (util_cpu_caps.has_altivec) {
intr_size = 128;
if (type.width == 8) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vmaxub";
} else {
intrinsic = "llvm.ppc.altivec.vmaxsb";
}
} else if (type.width == 16) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vmaxuh";
} else {
intrinsic = "llvm.ppc.altivec.vmaxsh";
}
} else if (type.width == 32) {
if (!type.sign) {
intrinsic = "llvm.ppc.altivec.vmaxuw";
} else {
intrinsic = "llvm.ppc.altivec.vmaxsw";
}
}
}
if(intrinsic) {