[LV] add test for #47665, #88802 (#91135)

Author: artagnon

llvm/test/Transforms/LoopVectorize/RISCV/pr88802.ll

@@ -0,0 +1,31 @@
+; REQUIRES: asserts
+; RUN: not --crash opt -passes=loop-vectorize -mtriple=riscv64 -mattr=+v -disable-output %s
+
+define void @test(ptr %p, i64 %a, i8 %b) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.body, %entry
+  %iv = phi i32 [ 0, %entry ], [ %add, %for.body ]
+  %add = add i32 %iv, 1
+  %cmp.slt = icmp slt i32 %iv, 2
+  %shl = shl i64 %a, 48
+  %ashr = ashr i64 %shl, 52
+  %trunc.i32 = trunc i64 %ashr to i32
+  br i1 %cmp.slt, label %cond.false, label %for.body
+
+cond.false:                                       ; preds = %for.cond
+  %zext = zext i8 %b to i32
+  br label %for.body
+
+for.body:                                         ; preds = %cond.false, %for.cond
+  %cond = phi i32 [ %trunc.i32, %for.cond ], [ %zext, %cond.false ]
+  %shl.i32 = shl i32 %cond, 8
+  %trunc = trunc i32 %shl.i32 to i8
+  store i8 %trunc, ptr %p, align 1
+  %cmp = icmp slt i32 %iv, 2
+  br i1 %cmp, label %for.cond, label %exit
+
+exit:                                             ; preds = %for.body
+  ret void
+}

llvm/test/Transforms/LoopVectorize/SystemZ/pr47665.ll

@@ -0,0 +1,25 @@
+; REQUIRES: asserts
+; RUN: not --crash opt -passes=loop-vectorize -mtriple=s390x -mcpu=z14 -disable-output %s
+
+define void @test(ptr %p, i40 %a) {
+entry:
+  br label %for.body
+
+for.body:                                         ; preds = %for.body, %entry
+  %iv = phi i32 [ 0, %entry ], [ %iv.next, %for.body ]
+  %shl = shl i40 %a, 24
+  %ashr = ashr i40 %shl, 28
+  %trunc = trunc i40 %ashr to i32
+  %icmp.eq = icmp eq i32 %trunc, 0
+  %zext = zext i1 %icmp.eq to i32
+  %icmp.ult = icmp ult i32 0, %zext
+  %or = or i1 %icmp.ult, true
+  %icmp.sgt = icmp sgt i1 %or, false
+  store i1 %icmp.sgt, ptr %p, align 1
+  %iv.next = add i32 %iv, 1
+  %cond = icmp ult i32 %iv.next, 10
+  br i1 %cond, label %for.body, label %exit
+
+exit:                                             ; preds = %for.body
+  ret void
+}