llvm-project/llvm/test/CodeGen/AArch64/GlobalISel/legalize-sub.mir

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--"
define void @test_scalar_sub_small() {
entry:
ret void
}
...
---
name: test_scalar_sub_small
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
- { id: 4, class: _ }
- { id: 5, class: _ }
body: |
bb.0.entry:
liveins: $x0, $x1, $x2, $x3
; CHECK-LABEL: name: test_scalar_sub_small
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[COPY1]](s64)
; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[TRUNC]], [[TRUNC1]]
; CHECK: [[ANYEXT:%[0-9]+]]:_(s64) = G_ANYEXT [[SUB]](s32)
; CHECK: $x0 = COPY [[ANYEXT]](s64)
%0(s64) = COPY $x0
%1(s64) = COPY $x1
%2(s8) = G_TRUNC %0
%3(s8) = G_TRUNC %1
%4(s8) = G_SUB %2, %3
%5(s64) = G_ANYEXT %4
$x0 = COPY %5
...