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

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[AArch64][GlobalISel] Make G_SADDE and G_SSUBE legal This makes G_SADDE and G_SSUBE legal in preparation for further work legalizing overflowing operations. It's fine that they don't have an instruction selector implementation yet, because G_UADDE and G_USUBE are already legal on AArch64 without an instruction selector implementation. This completes the set of G_[SU]{ADD,SUB}[EO] operations on AArch64. Reviewed By: paquette Differential Revision: https://reviews.llvm.org/D95325
2021-01-27 17:36:12 +08:00
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -verify-machineinstrs -run-pass=legalizer -debugify-and-strip-all-safe %s -o - | FileCheck %s
[Test][AArch64] Test SADDE/SSUBE/UADDE/USUBE narrowing legalization Reviewed By: paquette Differential Revision: https://reviews.llvm.org/D96676
2021-02-23 06:11:58 +08:00
---
name: narrow_scalar_sadde_s128
body: |
bb.0.entry:
; CHECK-LABEL: name: narrow_scalar_sadde_s128
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $x2
; CHECK: [[COPY3:%[0-9]+]]:_(s64) = COPY $x3
; CHECK: [[COPY4:%[0-9]+]]:_(s64) = COPY $x4
; CHECK: %carry_in:_(s1) = G_TRUNC [[COPY4]](s64)
; CHECK: [[UADDE:%[0-9]+]]:_(s64), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[COPY]], [[COPY2]], %carry_in
; CHECK: %19:_(s64), %carry_out:_(s1) = G_SADDE [[COPY1]], [[COPY3]], [[UADDE1]]
; CHECK: %carry_out_ext:_(s64) = G_ANYEXT %carry_out(s1)
; CHECK: $x0 = COPY [[UADDE]](s64)
; CHECK: $x1 = COPY %19(s64)
; CHECK: $x2 = COPY %carry_out_ext(s64)
%0:_(s64) = COPY $x0
%1:_(s64) = COPY $x1
%2:_(s64) = COPY $x2
%3:_(s64) = COPY $x3
%4:_(s64) = COPY $x4
%lhs:_(s128) = G_MERGE_VALUES %0, %1
%rhs:_(s128) = G_MERGE_VALUES %2, %3
%carry_in:_(s1) = G_TRUNC %4
%add:_(s128), %carry_out:_(s1) = G_SADDE %lhs, %rhs, %carry_in
%add0:_(s64), %add1:_(s64) = G_UNMERGE_VALUES %add
%carry_out_ext:_(s64) = G_ANYEXT %carry_out
$x0 = COPY %add0
$x1 = COPY %add1
$x2 = COPY %carry_out_ext
...
---
name: narrow_scalar_sadde_big_nonpow2
body: |
bb.0.entry:
; CHECK-LABEL: name: narrow_scalar_sadde_big_nonpow2
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $x2
; CHECK: [[COPY3:%[0-9]+]]:_(s64) = COPY $x3
; CHECK: [[COPY4:%[0-9]+]]:_(s64) = COPY $x4
; CHECK: %carry_in:_(s1) = G_TRUNC [[COPY4]](s64)
; CHECK: [[UADDE:%[0-9]+]]:_(s64), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[COPY]], [[COPY1]], %carry_in
; CHECK: [[UADDE2:%[0-9]+]]:_(s64), [[UADDE3:%[0-9]+]]:_(s1) = G_UADDE [[COPY1]], [[COPY2]], [[UADDE1]]
; CHECK: %24:_(s64), %carry_out:_(s1) = G_SADDE [[COPY2]], [[COPY3]], [[UADDE3]]
; CHECK: %carry_out_ext:_(s64) = G_ANYEXT %carry_out(s1)
; CHECK: $x0 = COPY [[UADDE]](s64)
; CHECK: $x1 = COPY [[UADDE2]](s64)
; CHECK: $x2 = COPY %24(s64)
; CHECK: $x3 = COPY %carry_out_ext(s64)
%0:_(s64) = COPY $x0
%1:_(s64) = COPY $x1
%2:_(s64) = COPY $x2
%3:_(s64) = COPY $x3
%4:_(s64) = COPY $x4
%lhs:_(s192) = G_MERGE_VALUES %0, %1, %2
%rhs:_(s192) = G_MERGE_VALUES %1, %2, %3
%carry_in:_(s1) = G_TRUNC %4
%add:_(s192), %carry_out:_(s1) = G_SADDE %lhs, %rhs, %carry_in
%add0:_(s64), %add1:_(s64), %add2:_(s64) = G_UNMERGE_VALUES %add
%carry_out_ext:_(s64) = G_ANYEXT %carry_out
$x0 = COPY %add0
$x1 = COPY %add1
$x2 = COPY %add2
$x3 = COPY %carry_out_ext
...
[GlobalISel] Implement widenScalar for carry-in add/sub These are widened to a wider UADDE/USUBE, with the overflow value unused, and with the same synthesis of a new overflow value as for the O operations. Reviewed By: paquette Differential Revision: https://reviews.llvm.org/D95326
2021-01-29 02:20:35 +08:00
---
name: widen_scalar_sadde_s8
body: |
bb.0.entry:
; CHECK-LABEL: name: widen_scalar_sadde_s8
; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $x2
; CHECK: %carry_in:_(s1) = G_TRUNC [[COPY2]](s64)
; CHECK: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
; CHECK: [[SEXT_INREG:%[0-9]+]]:_(s32) = G_SEXT_INREG [[TRUNC]], 8
; CHECK: [[TRUNC1:%[0-9]+]]:_(s32) = G_TRUNC [[COPY1]](s64)
; CHECK: [[SEXT_INREG1:%[0-9]+]]:_(s32) = G_SEXT_INREG [[TRUNC1]], 8
; CHECK: [[UADDE:%[0-9]+]]:_(s32), [[UADDE1:%[0-9]+]]:_(s1) = G_UADDE [[SEXT_INREG]], [[SEXT_INREG1]], %carry_in
; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[UADDE]](s32)
; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UADDE]](s32)
; CHECK: [[SEXT_INREG2:%[0-9]+]]:_(s32) = G_SEXT_INREG [[COPY3]], 8
; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(ne), [[UADDE]](s32), [[SEXT_INREG2]]
; CHECK: %add:_(s8) = COPY [[TRUNC2]](s8)
; CHECK: %add_ext:_(s64) = G_ANYEXT [[UADDE]](s32)
; CHECK: %carry_out_ext:_(s64) = G_ANYEXT [[ICMP]](s32)
; CHECK: $x0 = COPY %add_ext(s64)
; CHECK: $x1 = COPY %carry_out_ext(s64)
%0:_(s64) = COPY $x0
%1:_(s64) = COPY $x1
%2:_(s64) = COPY $x2
%lhs:_(s8) = G_TRUNC %0
%rhs:_(s8) = G_TRUNC %1
%carry_in:_(s1) = G_TRUNC %2
%add:_(s8), %carry_out:_(s1) = G_SADDE %lhs, %rhs, %carry_in
%add_ext:_(s64) = G_ANYEXT %add
%carry_out_ext:_(s64) = G_ANYEXT %carry_out
$x0 = COPY %add_ext
$x1 = COPY %carry_out_ext
...
[AArch64][GlobalISel] Make G_SADDE and G_SSUBE legal This makes G_SADDE and G_SSUBE legal in preparation for further work legalizing overflowing operations. It's fine that they don't have an instruction selector implementation yet, because G_UADDE and G_USUBE are already legal on AArch64 without an instruction selector implementation. This completes the set of G_[SU]{ADD,SUB}[EO] operations on AArch64. Reviewed By: paquette Differential Revision: https://reviews.llvm.org/D95325
2021-01-27 17:36:12 +08:00
---
name: test_scalar_sadde_32
body: |
bb.0.entry:
; CHECK-LABEL: name: test_scalar_sadde_32
; CHECK: %lhs:_(s32) = COPY $w0
; CHECK: %rhs:_(s32) = COPY $w1
; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $w2
; CHECK: %carry_in:_(s1) = G_TRUNC [[COPY]](s32)
; CHECK: %add:_(s32), %carry_out:_(s1) = G_SADDE %lhs, %rhs, %carry_in
; CHECK: %carry_out_ext:_(s32) = G_ANYEXT %carry_out(s1)
; CHECK: $w0 = COPY %add(s32)
; CHECK: $w1 = COPY %carry_out_ext(s32)
%lhs:_(s32) = COPY $w0
%rhs:_(s32) = COPY $w1
%2:_(s32) = COPY $w2
%carry_in:_(s1) = G_TRUNC %2
%add:_(s32), %carry_out:_(s1) = G_SADDE %lhs, %rhs, %carry_in
%carry_out_ext:_(s32) = G_ANYEXT %carry_out
$w0 = COPY %add
$w1 = COPY %carry_out_ext
...