ScopDetect: Allow multiplications of the form <param> * <param>
We handle these by treating this result of the multiplication as an additional
parameter.
llvm-svn: 179163
diff --git a/polly/test/ScopDetect/parametric-multiply-in-scev.ll b/polly/test/ScopDetect/parametric-multiply-in-scev.ll
new file mode 100644
index 0000000..fe01e3c
--- /dev/null
+++ b/polly/test/ScopDetect/parametric-multiply-in-scev.ll
@@ -0,0 +1,29 @@
+; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-detect -polly-codegen-scev -analyze < %s | FileCheck %s
+
+
+; foo(float *A, long n, long k) {
+; if (true)
+; A[n * k] = 0;
+; }
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @foo(float* %A, i64 %n, i64 %k) {
+entry:
+ br label %for.j
+
+for.j:
+ br i1 true, label %if.then, label %return
+
+if.then:
+ %mul = mul nsw i64 %n, %k
+ %arrayidx = getelementptr float* %A, i64 %mul
+ store float 0.000000e+00, float* %arrayidx
+ br label %return
+
+return:
+ ret void
+}
+
+; CHECK: Valid Region for Scop: for.j => return