xref: /llvm-project/llvm/test/CodeGen/RISCV/rvv/scalable-vector-struct.ll (revision ff9af4c43ad71eeba2cabe99609cfaa0fd54c1d0)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=riscv32 -mattr=+v -verify-machineinstrs < %s | FileCheck %s
3
4; This demonstrates that we can pass a struct containing scalable vectors across
5; a basic block.
6
7define i32 @foo({ {<vscale x 2 x i32>, <vscale x 2 x i32>}, i32 } %x, ptr %y, ptr %z) {
8; CHECK-LABEL: foo:
9; CHECK:       # %bb.0: # %entry
10; CHECK-NEXT:    vs1r.v v8, (a1)
11; CHECK-NEXT:    vs1r.v v9, (a2)
12; CHECK-NEXT:    ret
13entry:
14  br label %return
15
16return:
17  %a = extractvalue { {<vscale x 2 x i32>, <vscale x 2 x i32>}, i32 } %x, 1
18  %b = extractvalue { {<vscale x 2 x i32>, <vscale x 2 x i32>}, i32 } %x, 0, 0
19  %c = extractvalue { {<vscale x 2 x i32>, <vscale x 2 x i32>}, i32 } %x, 0, 1
20  store <vscale x 2 x i32> %b, ptr %y
21  store <vscale x 2 x i32> %c, ptr %z
22
23  ret i32 %a
24}
25