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|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=legalizer %s -o - | FileCheck %s
---
name: trunc_s16_merge_s64_s32
body: |
bb.0:
; Test that trunc(merge) with trunc-size < merge-source-size creates a trunc
; of the merge source
; CHECK-LABEL: name: trunc_s16_merge_s64_s32
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $vgpr0 = COPY [[C]](s32)
%0:_(s32) = G_CONSTANT i32 0
%1:_(s32) = G_CONSTANT i32 1
%2:_(s64) = G_MERGE_VALUES %0, %1
%3:_(s16) = G_TRUNC %2
%4:_(s32) = G_ANYEXT %3
$vgpr0 = COPY %4
...
---
name: trunc_s32_merge_s64_s32
body: |
bb.0:
; Test that trunc(merge) with trunc-size == merge-source-size is eliminated
; CHECK-LABEL: name: trunc_s32_merge_s64_s32
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $vgpr0 = COPY [[C]](s32)
%0:_(s32) = G_CONSTANT i32 0
%1:_(s32) = G_CONSTANT i32 1
%2:_(s64) = G_MERGE_VALUES %0, %1
%3:_(s32) = G_TRUNC %2
$vgpr0 = COPY %3
...
---
name: trunc_s64_merge_s128_s32
body: |
bb.0:
; Test that trunc(merge) with trunc-size > merge-source-size combines to a
; smaller merge
; CHECK-LABEL: name: trunc_s64_merge_s128_s32
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[C]](s32), [[C1]](s32)
; CHECK-NEXT: $vgpr0_vgpr1 = COPY [[MV]](s64)
%0:_(s32) = G_CONSTANT i32 0
%1:_(s32) = G_CONSTANT i32 1
%2:_(s128) = G_MERGE_VALUES %0, %1, %0, %1
%3:_(s64) = G_TRUNC %2
$vgpr0_vgpr1 = COPY %3
...
---
name: trunc_s32_merge_s128_p0
body: |
bb.0:
; Test that trunc(merge) with a non-scalar merge source is not combined
; CHECK-LABEL: name: trunc_s32_merge_s128_p0
; CHECK: [[C:%[0-9]+]]:_(p0) = G_CONSTANT i64 0
; CHECK-NEXT: [[C1:%[0-9]+]]:_(p0) = G_CONSTANT i64 1
; CHECK-NEXT: [[MV:%[0-9]+]]:_(s128) = G_MERGE_VALUES [[C]](p0), [[C1]](p0)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[MV]](s128)
; CHECK-NEXT: $vgpr0 = COPY [[TRUNC]](s32)
%0:_(p0) = G_CONSTANT i64 0
%1:_(p0) = G_CONSTANT i64 1
%2:_(s128) = G_MERGE_VALUES %0, %1
%3:_(s32) = G_TRUNC %2
$vgpr0 = COPY %3
...
---
name: trunc_s64_merge_s128_p0
body: |
bb.0:
; Test that trunc(merge) with a non-scalar merge source is not combined
; CHECK-LABEL: name: trunc_s64_merge_s128_p0
; CHECK: [[C:%[0-9]+]]:_(p0) = G_CONSTANT i64 0
; CHECK-NEXT: [[C1:%[0-9]+]]:_(p0) = G_CONSTANT i64 1
; CHECK-NEXT: [[MV:%[0-9]+]]:_(s128) = G_MERGE_VALUES [[C]](p0), [[C1]](p0)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s64) = G_TRUNC [[MV]](s128)
; CHECK-NEXT: $vgpr0_vgpr1 = COPY [[TRUNC]](s64)
%0:_(p0) = G_CONSTANT i64 0
%1:_(p0) = G_CONSTANT i64 1
%2:_(s128) = G_MERGE_VALUES %0, %1
%3:_(s64) = G_TRUNC %2
$vgpr0_vgpr1 = COPY %3
...
---
name: trunc_s128_merge_s192_p0
body: |
bb.0:
; Test that trunc(merge) with a non-scalar merge source is not combined
; CHECK-LABEL: name: trunc_s128_merge_s192_p0
; CHECK: [[C:%[0-9]+]]:_(p0) = G_CONSTANT i64 0
; CHECK-NEXT: [[C1:%[0-9]+]]:_(p0) = G_CONSTANT i64 1
; CHECK-NEXT: [[MV:%[0-9]+]]:_(s192) = G_MERGE_VALUES [[C]](p0), [[C1]](p0), [[C]](p0)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s128) = G_TRUNC [[MV]](s192)
; CHECK-NEXT: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[TRUNC]](s128)
%0:_(p0) = G_CONSTANT i64 0
%1:_(p0) = G_CONSTANT i64 1
%2:_(s192) = G_MERGE_VALUES %0, %1, %0
%3:_(s128) = G_TRUNC %2
$vgpr0_vgpr1_vgpr2_vgpr3 = COPY %3
...
---
name: trunc_s68_merge_s128_s32
body: |
bb.0:
; Test that trunc(merge) with trunc-size > merge-source-size and
; trunc-size % merge-source-size != 0 can be combined after the G_TRUNCs
; have been combined.
; CHECK-LABEL: name: trunc_s68_merge_s128_s32
; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $vgpr0 = COPY [[C]](s32)
%0:_(s32) = G_CONSTANT i32 0
%1:_(s32) = G_CONSTANT i32 1
%2:_(s128) = G_MERGE_VALUES %0, %1, %0, %1
%3:_(s68) = G_TRUNC %2
%4:_(s32) = G_TRUNC %3
$vgpr0 = COPY %4
...
---
name: trunc_trunc
body: |
bb.0:
; Test that trunc(trunc) is combined to a single trunc
; CHECK-LABEL: name: trunc_trunc
; CHECK: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[DEF]](s64)
; CHECK-NEXT: $vgpr0 = COPY [[TRUNC]](s32)
%0:_(s64) = G_IMPLICIT_DEF
%1:_(s48) = G_TRUNC %0
%2:_(s32) = G_TRUNC %1
$vgpr0 = COPY %2
...
---
name: trunc_sext
body: |
bb.0:
; Test that trunc(sext) is replaced with sext source.
; CHECK-LABEL: name: trunc_sext
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $vgpr0 = COPY [[DEF]](s32)
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s64) = G_SEXT %0
%2:_(s32) = G_TRUNC %1
$vgpr0 = COPY %2
...
---
name: trunc_zext
body: |
bb.0:
; Test that trunc(zext) is replaced with zext source.
; CHECK-LABEL: name: trunc_zext
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $vgpr0 = COPY [[DEF]](s32)
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s64) = G_ZEXT %0
%2:_(s32) = G_TRUNC %1
$vgpr0 = COPY %2
...
---
name: trunc_anyext
body: |
bb.0:
; Test that trunc(anyext) is replaced with anyext source.
; CHECK-LABEL: name: trunc_anyext
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $vgpr0 = COPY [[DEF]](s32)
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s64) = G_ANYEXT %0
%2:_(s32) = G_TRUNC %1
$vgpr0 = COPY %2
...
---
name: trunc_ext
body: |
bb.0:
; Test that trunc(sext (trunc (...))) is replaced with source.
; CHECK-LABEL: name: trunc_ext
; CHECK: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; CHECK-NEXT: $vgpr0 = COPY [[DEF]](s32)
%0:_(s32) = G_IMPLICIT_DEF
%1:_(s64) = G_SEXT %0
%2:_(s32) = G_TRUNC %1
%3:_(s128) = G_ZEXT %2
%4:_(s64) = G_TRUNC %3
%5:_(s32) = G_TRUNC %4
$vgpr0 = COPY %5
...
|
