Differential D4988 Diff 14598 test/Isl/CodeGen/MemAccess/simple_stride_test.ll

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test/Isl/CodeGen/MemAccess/simple_stride_test.ll

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				; RUN: opt %loadPolly -basicaa -polly-import-jscop -polly-import-jscop-dir=%S -polly-codegen-isl -polly-vectorizer=polly -S < %s \| FileCheck %s
				;
				; Check that we use the correct __new__ strides:
				; stride zero for B
				; stride one for A
				;
				; CHECK: %polly.access.B = getelementptr i32* %B, i64 0
				; CHECK: %[[BC:[._a-zA-Z0-9]]] = bitcast i32 %polly.access.B to <1 x i32>*
				; CHECK: %[[LD:[._a-zA-Z0-9]]] = load <1 x i32> %[[BC]], align 8
				; CHECK: %[[SV:[._a-zA-Z0-9]*]] = shufflevector <1 x i32> %[[LD]], <1 x i32> %[[LD]], <16 x i32> zeroinitializer
				;
				; CHECK: %polly.access.A = getelementptr i32* %A, i64 0
				; CHECK: %[[VP:[._a-zA-Z0-9]]] = bitcast i32 %polly.access.A to <16 x i32>*
				; CHECK: store <16 x i32> %[[SV]], <16 x i32>* %[[VP]], align 8
				;
				; void simple_stride(int restrict A, int restrict B) {
				; for (int i = 0; i < 16; i++)
				; A[i * 2] = B[i * 2];
				; }
				;
				target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

				define void @simple_stride(i32* noalias %A, i32* noalias %B) {
				entry:
				br label %for.cond

				for.cond: ; preds = %for.inc, %entry
				%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
				%exitcond = icmp ne i64 %indvars.iv, 16
				br i1 %exitcond, label %for.body, label %for.end

				for.body: ; preds = %for.cond
				%tmp = shl nsw i64 %indvars.iv, 1
				%arrayidx = getelementptr inbounds i32* %B, i64 %tmp
				%tmp4 = load i32* %arrayidx, align 4
				%tmp5 = shl nsw i64 %indvars.iv, 1
				%arrayidx3 = getelementptr inbounds i32* %A, i64 %tmp5
				store i32 %tmp4, i32* %arrayidx3, align 4
				br label %for.inc

				for.inc: ; preds = %for.body
				%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
				br label %for.cond

				for.end: ; preds = %for.cond
				ret void
				}