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[MachineCopyPropagation][RISCV] Add test case showing failure for MachineCopyPropagation. NFC 

This is a pre-commit test cases for D128039.

Differential Revision: https://reviews.llvm.org/D128040
This commit is contained in:
Han-Kuan Chen 2022-06-17 01:34:10 -07:00
parent 0716b3ec09
commit dbfb00a930
1 changed files with 34 additions and 0 deletions
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34
llvm/test/CodeGen/RISCV/machine-cp.mir Normal file
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@ -0,0 +1,34 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -mtriple=riscv32 -simplify-mir \
# RUN: -run-pass=machine-cp | FileCheck --check-prefix=RV32 %s
# RUN: llc -o - %s -mtriple=riscv64 -simplify-mir \
# RUN: -run-pass=machine-cp | FileCheck --check-prefix=RV64 %s
--- |
define void @foo() {
entry:
ret void
}
...
---
name: foo
body: |
bb.0.entry:
liveins: $v28_v29_v30, $v8_v9, $v1
; RV32-LABEL: name: foo
; RV32: liveins: $v28_v29_v30, $v8_v9, $v1
; RV32-NEXT: {{ $}}
; RV32-NEXT: renamable $v4_v5_v6_v7_v8_v9_v10_v11 = COPY renamable $v0_v1_v2_v3_v4_v5_v6_v7
; RV32-NEXT: renamable $v28 = COPY $v1, implicit killed $v28_v29_v30, implicit-def $v28_v29_v30
; RV32-NEXT: PseudoRET implicit $v28
; RV64-LABEL: name: foo
; RV64: liveins: $v28_v29_v30, $v8_v9, $v1
; RV64-NEXT: {{ $}}
; RV64-NEXT: renamable $v4_v5_v6_v7_v8_v9_v10_v11 = COPY renamable $v0_v1_v2_v3_v4_v5_v6_v7
; RV64-NEXT: renamable $v28 = COPY $v1, implicit killed $v28_v29_v30, implicit-def $v28_v29_v30
; RV64-NEXT: PseudoRET implicit $v28
renamable $v8 = COPY renamable $v1, implicit killed $v8_v9, implicit-def $v8_v9
renamable $v4_v5_v6_v7_v8_v9_v10_v11 = COPY killed renamable $v0_v1_v2_v3_v4_v5_v6_v7
renamable $v28 = COPY renamable $v8, implicit killed $v28_v29_v30, implicit-def $v28_v29_v30
PseudoRET implicit $v28
...