Properly handle indirect win64 args when they're passed in memory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79009 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 57 insertions, 0 deletions

diff --git a/test/CodeGen/X86/2009-08-14-Win64MemoryIndirectArg.ll b/test/CodeGen/X86/2009-08-14-Win64MemoryIndirectArg.ll
new file mode 100644
index 0000000000..5431462f47
--- /dev/null
+++ b/test/CodeGen/X86/2009-08-14-Win64MemoryIndirectArg.ll
@@ -0,0 +1,57 @@
+; RUN: llvm-as < %s | llc
+target triple = "x86_64-mingw"
+
+; ModuleID = 'mm.bc'
+	type opaque		; type %0
+	type opaque		; type %1
+
+define internal fastcc float @computeMipmappingRho(%0* %shaderExecutionStatePtr, i32 %index, <4 x float> %texCoord, <4 x float> %texCoordDX, <4 x float> %texCoordDY) readonly {
+indexCheckBlock:
+	%indexCmp = icmp ugt i32 %index, 16		; <i1> [#uses=1]
+	br i1 %indexCmp, label %zeroReturnBlock, label %primitiveTextureFetchBlock
+
+primitiveTextureFetchBlock:		; preds = %indexCheckBlock
+	%pointerArithmeticTmp = bitcast %0* %shaderExecutionStatePtr to i8*		; <i8*> [#uses=1]
+	%pointerArithmeticTmp1 = getelementptr i8* %pointerArithmeticTmp, i64 1808		; <i8*> [#uses=1]
+	%pointerArithmeticTmp2 = bitcast i8* %pointerArithmeticTmp1 to %1**		; <%1**> [#uses=1]
+	%primitivePtr = load %1** %pointerArithmeticTmp2		; <%1*> [#uses=1]
+	%pointerArithmeticTmp3 = bitcast %1* %primitivePtr to i8*		; <i8*> [#uses=1]
+	%pointerArithmeticTmp4 = getelementptr i8* %pointerArithmeticTmp3, i64 19408		; <i8*> [#uses=1]
+	%pointerArithmeticTmp5 = bitcast i8* %pointerArithmeticTmp4 to %1**		; <%1**> [#uses=1]
+	%primitiveTexturePtr = getelementptr %1** %pointerArithmeticTmp5, i32 %index		; <%1**> [#uses=1]
+	%primitiveTexturePtr6 = load %1** %primitiveTexturePtr		; <%1*> [#uses=2]
+	br label %textureCheckBlock
+
+textureCheckBlock:		; preds = %primitiveTextureFetchBlock
+	%texturePtrInt = ptrtoint %1* %primitiveTexturePtr6 to i64		; <i64> [#uses=1]
+	%testTextureNULL = icmp eq i64 %texturePtrInt, 0		; <i1> [#uses=1]
+	br i1 %testTextureNULL, label %zeroReturnBlock, label %rhoCalculateBlock
+
+rhoCalculateBlock:		; preds = %textureCheckBlock
+	%pointerArithmeticTmp7 = bitcast %1* %primitiveTexturePtr6 to i8*		; <i8*> [#uses=1]
+	%pointerArithmeticTmp8 = getelementptr i8* %pointerArithmeticTmp7, i64 640		; <i8*> [#uses=1]
+	%pointerArithmeticTmp9 = bitcast i8* %pointerArithmeticTmp8 to <4 x float>*		; <<4 x float>*> [#uses=1]
+	%dimensionsPtr = load <4 x float>* %pointerArithmeticTmp9, align 1		; <<4 x float>> [#uses=2]
+	%texDiffDX = fsub <4 x float> %texCoordDX, %texCoord		; <<4 x float>> [#uses=1]
+	%texDiffDY = fsub <4 x float> %texCoordDY, %texCoord		; <<4 x float>> [#uses=1]
+	%ddx = fmul <4 x float> %texDiffDX, %dimensionsPtr		; <<4 x float>> [#uses=2]
+	%ddx10 = fmul <4 x float> %texDiffDY, %dimensionsPtr		; <<4 x float>> [#uses=2]
+	%ddxSquared = fmul <4 x float> %ddx, %ddx		; <<4 x float>> [#uses=3]
+	%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]
+	%dxSquared = fadd <4 x float> %ddxSquared, %0		; <<4 x float>> [#uses=1]
+	%1 = call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %dxSquared)		; <<4 x float>> [#uses=1]
+	%ddySquared = fmul <4 x float> %ddx10, %ddx10		; <<4 x float>> [#uses=3]
+	%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]
+	%dySquared = fadd <4 x float> %ddySquared, %2		; <<4 x float>> [#uses=1]
+	%3 = call <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float> %dySquared)		; <<4 x float>> [#uses=1]
+	%4 = call <4 x float> @llvm.x86.sse.max.ss(<4 x float> %1, <4 x float> %3)		; <<4 x float>> [#uses=1]
+	%rho = extractelement <4 x float> %4, i32 0		; <float> [#uses=1]
+	ret float %rho
+
+zeroReturnBlock:		; preds = %textureCheckBlock, %indexCheckBlock
+	ret float 0.000000e+00
+}
+
+declare <4 x float> @llvm.x86.sse.sqrt.ss(<4 x float>) nounwind readnone
+
+declare <4 x float> @llvm.x86.sse.max.ss(<4 x float>, <4 x float>) nounwind readnone