28 lines
942 B
LLVM
28 lines
942 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc < %s -O3 -mtriple=riscv64 -mattr=+v | FileCheck %s
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; The case below demonstrates cross block CSE of vector instructions with
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; undefined passthru operands.
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define void @foo(<vscale x 2 x i32> %x, <vscale x 2 x i32> %y, ptr %p1, ptr %p2, i1 zeroext %cond) {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vsetvli a3, zero, e32, m1, ta, ma
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; CHECK-NEXT: vadd.vv v8, v8, v9
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; CHECK-NEXT: vs1r.v v8, (a0)
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; CHECK-NEXT: bnez a2, .LBB0_2
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; CHECK-NEXT: # %bb.1: # %falsebb
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; CHECK-NEXT: vs1r.v v8, (a1)
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; CHECK-NEXT: .LBB0_2: # %mergebb
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; CHECK-NEXT: ret
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%a = add <vscale x 2 x i32> %x, %y
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store <vscale x 2 x i32> %a, ptr %p1
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br i1 %cond, label %mergebb, label %falsebb
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falsebb:
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%b = add <vscale x 2 x i32> %x, %y
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store <vscale x 2 x i32> %b, ptr %p2
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br label %mergebb
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mergebb:
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ret void
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}
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