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llvm-mirror/test/CodeGen/X86/sandybridge-loads.ll

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On Sandybridge loading unaligned 256bits using two XMM loads (vmovups and vinsertf128) is faster than using a single vmovups instruction. llvm-svn: 172868
2013-01-19 00:10:30 +01:00
; RUN: llc -march=x86-64 -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -o - < %s | FileCheck %s
Update to more CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change. All changes were made by the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" grep -q "^; *RUN: *llc.*debug" $NAME && continue grep -q "^; *RUN:.*llvm-objdump" $NAME && continue grep -q "^; *RUN: *opt.*" $NAME && continue TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\([A-Za-z0-9_-]*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC[:]* *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME done This script catches a superset of the cases caught by the script associated with commit r186280. It initially found some false positives due to unusual constructs in a minority of tests; all such cases were disambiguated first in commit r186621. llvm-svn: 186624
2013-07-19 00:47:09 +02:00
;CHECK-LABEL: wideloads:
On Sandybridge loading unaligned 256bits using two XMM loads (vmovups and vinsertf128) is faster than using a single vmovups instruction. llvm-svn: 172868
2013-01-19 00:10:30 +01:00
;CHECK: vmovaps
;CHECK: vinsertf128
On Sandybridge split unaligned 256bit stores into two xmm-sized stores. llvm-svn: 172894
2013-01-19 09:38:41 +01:00
;CHECK: vmovaps
On Sandybridge loading unaligned 256bits using two XMM loads (vmovups and vinsertf128) is faster than using a single vmovups instruction. llvm-svn: 172868
2013-01-19 00:10:30 +01:00
;CHECK-NOT: vinsertf128
;CHECK: ret
define void @wideloads(<8 x float>* %a, <8 x float>* %b, <8 x float>* %c) nounwind uwtable noinline ssp {
%v0 = load <8 x float>* %a, align 16 ; <---- unaligned!
%v1 = load <8 x float>* %b, align 32 ; <---- aligned!
%m0 = fcmp olt <8 x float> %v1, %v0
On Sandybridge split unaligned 256bit stores into two xmm-sized stores. llvm-svn: 172894
2013-01-19 09:38:41 +01:00
%v2 = load <8 x float>* %c, align 32 ; <---- aligned!
On Sandybridge loading unaligned 256bits using two XMM loads (vmovups and vinsertf128) is faster than using a single vmovups instruction. llvm-svn: 172868
2013-01-19 00:10:30 +01:00
%m1 = fcmp olt <8 x float> %v2, %v0
%mand = and <8 x i1> %m1, %m0
%r = zext <8 x i1> %mand to <8 x i32>
On Sandybridge split unaligned 256bit stores into two xmm-sized stores. llvm-svn: 172894
2013-01-19 09:38:41 +01:00
store <8 x i32> %r, <8 x i32>* undef, align 32
ret void
}
; CHECK: widestores
; loads:
; CHECK: vmovaps
; CHECK: vmovaps
; stores:
; CHECK: vmovaps
; CHECK: vextractf128
; CHECK: vmovaps
;CHECK: ret
define void @widestores(<8 x float>* %a, <8 x float>* %b, <8 x float>* %c) nounwind uwtable noinline ssp {
%v0 = load <8 x float>* %a, align 32
%v1 = load <8 x float>* %b, align 32
store <8 x float> %v0, <8 x float>* %b, align 32 ; <--- aligned
store <8 x float> %v1, <8 x float>* %a, align 16 ; <--- unaligned
On Sandybridge loading unaligned 256bits using two XMM loads (vmovups and vinsertf128) is faster than using a single vmovups instruction. llvm-svn: 172868
2013-01-19 00:10:30 +01:00
ret void
}
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