1; RUN: llc < %s
2target triple = "x86_64-mingw"
3
4; ModuleID = 'mm.bc'
5	%0 = type opaque		; type %0
6	%1 = type opaque		; type %1
7
8define internal fastcc float @computeMipmappingRho(%0* %shaderExecutionStatePtr, i32 %index, <4 x float> %texCoord, <4 x float> %texCoordDX, <4 x float> %texCoordDY) readonly {
9indexCheckBlock:
10	%indexCmp = icmp ugt i32 %index, 16		; <i1> [#uses=1]
11	br i1 %indexCmp, label %zeroReturnBlock, label %primitiveTextureFetchBlock
12
13primitiveTextureFetchBlock:		; preds = %indexCheckBlock
14	%pointerArithmeticTmp = bitcast %0* %shaderExecutionStatePtr to i8*		; <i8*> [#uses=1]
15	%pointerArithmeticTmp1 = getelementptr i8, i8* %pointerArithmeticTmp, i64 1808		; <i8*> [#uses=1]
16	%pointerArithmeticTmp2 = bitcast i8* %pointerArithmeticTmp1 to %1**		; <%1**> [#uses=1]
17	%primitivePtr = load %1*, %1** %pointerArithmeticTmp2		; <%1*> [#uses=1]
18	%pointerArithmeticTmp3 = bitcast %1* %primitivePtr to i8*		; <i8*> [#uses=1]
19	%pointerArithmeticTmp4 = getelementptr i8, i8* %pointerArithmeticTmp3, i64 19408		; <i8*> [#uses=1]
20	%pointerArithmeticTmp5 = bitcast i8* %pointerArithmeticTmp4 to %1**		; <%1**> [#uses=1]
21	%primitiveTexturePtr = getelementptr %1*, %1** %pointerArithmeticTmp5, i32 %index		; <%1**> [#uses=1]
22	%primitiveTexturePtr6 = load %1*, %1** %primitiveTexturePtr		; <%1*> [#uses=2]
23	br label %textureCheckBlock
24
25textureCheckBlock:		; preds = %primitiveTextureFetchBlock
26	%texturePtrInt = ptrtoint %1* %primitiveTexturePtr6 to i64		; <i64> [#uses=1]
27	%testTextureNULL = icmp eq i64 %texturePtrInt, 0		; <i1> [#uses=1]
28	br i1 %testTextureNULL, label %zeroReturnBlock, label %rhoCalculateBlock
29
30rhoCalculateBlock:		; preds = %textureCheckBlock
31	%pointerArithmeticTmp7 = bitcast %1* %primitiveTexturePtr6 to i8*		; <i8*> [#uses=1]
32	%pointerArithmeticTmp8 = getelementptr i8, i8* %pointerArithmeticTmp7, i64 640		; <i8*> [#uses=1]
33	%pointerArithmeticTmp9 = bitcast i8* %pointerArithmeticTmp8 to <4 x float>*		; <<4 x float>*> [#uses=1]
34	%dimensionsPtr = load <4 x float>, <4 x float>* %pointerArithmeticTmp9, align 1		; <<4 x float>> [#uses=2]
35	%texDiffDX = fsub <4 x float> %texCoordDX, %texCoord		; <<4 x float>> [#uses=1]
36	%texDiffDY = fsub <4 x float> %texCoordDY, %texCoord		; <<4 x float>> [#uses=1]
37	%ddx = fmul <4 x float> %texDiffDX, %dimensionsPtr		; <<4 x float>> [#uses=2]
38	%ddx10 = fmul <4 x float> %texDiffDY, %dimensionsPtr		; <<4 x float>> [#uses=2]
39	%ddxSquared = fmul <4 x float> %ddx, %ddx		; <<4 x float>> [#uses=3]
40	%0 = shufflevector <4 x float> %ddxSquared, <4 x float> %ddxSquared, <4 x i32> <i32 1, i32 0, i32 0, i32 0>		; <<4 x float>> [#uses=1]
41	%dxSquared = fadd <4 x float> %ddxSquared, %0		; <<4 x float>> [#uses=1]
42	%1 = call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %dxSquared)		; <<4 x float>> [#uses=1]
43	%ddySquared = fmul <4 x float> %ddx10, %ddx10		; <<4 x float>> [#uses=3]
44	%2 = shufflevector <4 x float> %ddySquared, <4 x float> %ddySquared, <4 x i32> <i32 1, i32 0, i32 0, i32 0>		; <<4 x float>> [#uses=1]
45	%dySquared = fadd <4 x float> %ddySquared, %2		; <<4 x float>> [#uses=1]
46	%3 = call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %dySquared)		; <<4 x float>> [#uses=1]
47	%4 = call <4 x float> @llvm.x86.sse.max.ss(<4 x float> %1, <4 x float> %3)		; <<4 x float>> [#uses=1]
48	%rho = extractelement <4 x float> %4, i32 0		; <float> [#uses=1]
49	ret float %rho
50
51zeroReturnBlock:		; preds = %textureCheckBlock, %indexCheckBlock
52	ret float 0.000000e+00
53}
54
55declare <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float>) nounwind readnone
56
57declare <4 x float> @llvm.x86.sse.max.ss(<4 x float>, <4 x float>) nounwind readnone
58