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llvm-mirror/test/CodeGen/X86/mmx-shuffle.ll
Dale Johannesen c14a1eda84 Massive rewrite of MMX:
The x86_mmx type is used for MMX intrinsics, parameters and
return values where these use MMX registers, and is also
supported in load, store, and bitcast.

Only the above operations generate MMX instructions, and optimizations
do not operate on or produce MMX intrinsics. 

MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into
smaller pieces.  Optimizations may occur on these forms and the
result casted back to x86_mmx, provided the result feeds into a
previous existing x86_mmx operation.

The point of all this is prevent optimizations from introducing
MMX operations, which is unsafe due to the EMMS problem.

llvm-svn: 115243
2010-09-30 23:57:10 +00:00

32 lines
2.1 KiB
LLVM

; RUN: llc < %s -mcpu=yonah
; PR1427
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-pc-linux-gnu"
%struct.DrawHelper = type { void (i32, %struct.QT_FT_Span*, i8*)*, void (i32, %struct.QT_FT_Span*, i8*)*, void (%struct.QRasterBuffer*, i32, i32, i32, i8*, i32, i32, i32)*, void (%struct.QRasterBuffer*, i32, i32, i32, i8*, i32, i32, i32)*, void (%struct.QRasterBuffer*, i32, i32, i32, i32, i32)* }
%struct.QBasicAtomic = type { i32 }
%struct.QClipData = type { i32, "struct.QClipData::ClipLine"*, i32, i32, %struct.QT_FT_Span*, i32, i32, i32, i32 }
"struct.QClipData::ClipLine" = type { i32, %struct.QT_FT_Span* }
%struct.QRasterBuffer = type { %struct.QRect, %struct.QRegion, %struct.QClipData*, %struct.QClipData*, i8, i32, i32, %struct.DrawHelper*, i32, i32, i32, i8* }
%struct.QRect = type { i32, i32, i32, i32 }
%struct.QRegion = type { "struct.QRegion::QRegionData"* }
"struct.QRegion::QRegionData" = type { %struct.QBasicAtomic, %struct._XRegion*, i8*, %struct.QRegionPrivate* }
%struct.QRegionPrivate = type opaque
%struct.QT_FT_Span = type { i16, i16, i16, i8 }
%struct._XRegion = type opaque
define void @_Z19qt_bitmapblit16_sseP13QRasterBufferiijPKhiii(%struct.QRasterBuffer* %rasterBuffer, i32 %x, i32 %y, i32 %color, i8* %src, i32 %width, i32 %height, i32 %stride) {
entry:
%tmp528 = bitcast <8 x i8> zeroinitializer to <2 x i32> ; <<2 x i32>> [#uses=1]
%tmp529 = and <2 x i32> %tmp528, bitcast (<4 x i16> < i16 -32640, i16 16448, i16 8224, i16 4112 > to <2 x i32>) ; <<2 x i32>> [#uses=1]
%tmp542 = bitcast <2 x i32> %tmp529 to <4 x i16> ; <<4 x i16>> [#uses=1]
%tmp543 = add <4 x i16> %tmp542, < i16 0, i16 16448, i16 24672, i16 28784 > ; <<4 x i16>> [#uses=1]
%tmp555 = bitcast <4 x i16> %tmp543 to <8 x i8> ; <<8 x i8>> [#uses=1]
%tmp556 = bitcast <8 x i8> %tmp555 to x86_mmx
%tmp557 = bitcast <8 x i8> zeroinitializer to x86_mmx
tail call void @llvm.x86.mmx.maskmovq( x86_mmx %tmp557, x86_mmx %tmp556, i8* null )
ret void
}
declare void @llvm.x86.mmx.maskmovq(x86_mmx, x86_mmx, i8*)