| # 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 |
| ... |