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llvm-mirror/test/CodeGen/AArch64/GlobalISel/legalize-gep.mir
Aditya Nandakumar 064157016e [GISel]: Add a clean up combiner during legalization.
Added a combiner which can clean up truncs/extends that are created in
order to make the types work during legalization.

Also moved the combineMerges to the LegalizeCombiner.

https://reviews.llvm.org/D36880

llvm-svn: 312158
2017-08-30 19:32:59 +00:00

38 lines
907 B
YAML

# 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_gep_small() {
entry:
ret void
}
...
---
name: test_gep_small
registers:
- { id: 0, class: _ }
- { id: 1, class: _ }
- { id: 2, class: _ }
- { id: 3, class: _ }
body: |
bb.0.entry:
liveins: %x0, %x1, %x2, %x3
; CHECK-LABEL: name: test_gep_small
; CHECK: [[A:%.*]](p0) = COPY %x0
; CHECK: [[B:%.*]](s64) = COPY %x1
; CHECK: [[C:%.*]](s64) = G_CONSTANT i64 56
; CHECK: [[SRC:%.*]](s64) = COPY [[B]](s64)
; CHECK: [[SHL:%.*]](s64) = G_SHL [[SRC]], [[C]]
; CHECK: [[SEXT:%.*]](s64) = G_ASHR [[SHL]], [[C]]
; CHECK: G_GEP [[A]], [[SEXT]]
%0(p0) = COPY %x0
%1(s64) = COPY %x1
%2(s8) = G_TRUNC %1
%3(p0) = G_GEP %0, %2(s8)
%x0 = COPY %3
...