[llvm] [AMDGPU] Extend test coverage for cross RC register coalescing (PR #138617)
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llvm-commits at lists.llvm.org
Mon May 5 16:49:38 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
Author: Jeffrey Byrnes (jrbyrnes)
<details>
<summary>Changes</summary>
[[Change-Id: I36894fc36e6e6214930fae67f2ca35999abf3b88](https://github.com/llvm/llvm-project/pull/132137) ](https://github.com/llvm/llvm-project/pull/132137) landed, but was breaking bots. In the rebase, I accidentally brought in unintended changes. I have reverted the commit https://github.com/llvm/llvm-project/commit/8b9ae65d51a14cac5a312bb19cb4757a88fc240b and fixed the rebase.
This PR is to land the original patch / extension to the test.
---
Patch is 82.51 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/138617.diff
1 Files Affected:
- (modified) llvm/test/CodeGen/AMDGPU/coalesce-copy-to-agpr-to-av-registers.mir (+2258-1)
``````````diff
diff --git a/llvm/test/CodeGen/AMDGPU/coalesce-copy-to-agpr-to-av-registers.mir b/llvm/test/CodeGen/AMDGPU/coalesce-copy-to-agpr-to-av-registers.mir
index 8ea5c3ea73e77..e09e3511e31f3 100644
--- a/llvm/test/CodeGen/AMDGPU/coalesce-copy-to-agpr-to-av-registers.mir
+++ b/llvm/test/CodeGen/AMDGPU/coalesce-copy-to-agpr-to-av-registers.mir
@@ -4,7 +4,6 @@
# Test coalescing situations which can use av_* registers to handle
# copies between VGPRs and AGPRs.
-
# Should coalesce %0 and %1 into subregisters of the av_64 common
# class
---
@@ -517,3 +516,2261 @@ body: |
SI_RETURN
...
+
+
+
+# Should coalesce %0 and %1 into subregisters of the av_64 common
+# class
+---
+name: copy_vgpr32_to_areg64_coalesce_with_av64_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg64_coalesce_with_av64_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_64 = COPY $vgpr1
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ %0.sub1:vreg_64 = COPY $vgpr1
+ undef %2.sub0:areg_64 = COPY %0.sub0
+ %2.sub1:areg_64 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, killed %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg64_align2_coalesce_with_av64_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg64_align2_coalesce_with_av64_align2_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_64 = COPY $vgpr1
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64_align2 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ %0.sub1:vreg_64 = COPY $vgpr1
+ undef %2.sub0:areg_64_align2 = COPY %0.sub0
+ %2.sub1:areg_64_align2 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg96_coalesce_with_av96_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1, $vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg96_coalesce_with_av96_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_96 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_96 = COPY $vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2:vreg_96 = COPY $vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_96 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96 = COPY [[COPY]].sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_96 =COPY $vgpr0
+ %0.sub1:vreg_96 = COPY $vgpr1
+ %0.sub2:vreg_96 = COPY $vgpr2
+ undef %3.sub0:areg_96 = COPY %0.sub0
+ %3.sub1:areg_96 = COPY %0.sub1
+ %3.sub2:areg_96 = COPY %0.sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, %3
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg96_coalesce_with_av96_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1, $vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg96_coalesce_with_av96_align2_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_96 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_96 = COPY $vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2:vreg_96 = COPY $vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_96_align2 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96_align2 = COPY [[COPY]].sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4915209 /* reguse:AReg_96_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_96 =COPY $vgpr0
+ %0.sub1:vreg_96 = COPY $vgpr1
+ %0.sub2:vreg_96 = COPY $vgpr2
+ undef %3.sub0:areg_96_align2 = COPY %0.sub0
+ %3.sub1:areg_96_align2 = COPY %0.sub1
+ %3.sub2:areg_96_align2 = COPY %0.sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 4915209 /* reguse:AReg_96_Align2 */, %3
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr64_to_areg64_coalesce_with_av128_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
+
+ ; CHECK-LABEL: name: copy_vgpr64_to_areg64_coalesce_with_av128_sub
+ ; CHECK: liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0_sub1:vreg_128 = COPY $vgpr0_vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2_sub3:vreg_128 = COPY $vgpr2_vgpr3
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0_sub1:areg_128 = COPY [[COPY]].sub0_sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2_sub3:areg_128 = COPY [[COPY]].sub2_sub3
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 6029321 /* reguse:AReg_128 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0_sub1:vreg_128 =COPY $vgpr0_vgpr1
+ %0.sub2_sub3:vreg_128 = COPY $vgpr2_vgpr3
+ undef %2.sub0_sub1:areg_128 = COPY %0.sub0_sub1
+ %2.sub2_sub3:areg_128 = COPY %0.sub2_sub3
+ INLINEASM &"; use $0", 0 /* attdialect */, 6029321 /* reguse:AReg_128 */, killed %2
+ SI_RETURN
+
+...
+
+
+
+---
+name: copy_vgpr64_to_areg64_align2_coalesce_with_av128_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
+
+ ; CHECK-LABEL: name: copy_vgpr64_to_areg64_align2_coalesce_with_av128_align2_sub
+ ; CHECK: liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_128 = COPY $vgpr0_vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_128 = COPY $vgpr2_vgpr3
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0_sub1:areg_128_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2_sub3:areg_128_align2 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 6291465 /* reguse:AReg_128_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_128 =COPY $vgpr0_vgpr1
+ %0.sub1:vreg_128 = COPY $vgpr2_vgpr3
+ undef %2.sub0_sub1:areg_128_align2 = COPY %0.sub0
+ %2.sub2_sub3:areg_128_align2 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 6291465 /* reguse:AReg_128_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_sgpr32_to_areg64_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $sgpr8, $sgpr9
+
+ ; CHECK-LABEL: name: copy_sgpr32_to_areg64_align2_sub
+ ; CHECK: liveins: $sgpr8, $sgpr9
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:sreg_64 = COPY $sgpr8
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:sreg_64 = COPY $sgpr9
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64_align2 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:sreg_64 = COPY $sgpr8
+ %0.sub1:sreg_64 = COPY $sgpr9
+ undef %2.sub0:areg_64_align2 = COPY %0.sub0
+ %2.sub1:areg_64_align2 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_vgpr64_to_areg96_coalesce_with_av96_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1_vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr32_vgpr64_to_areg96_coalesce_with_av96_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1_vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_96 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1_sub2:vreg_96 = COPY $vgpr1_vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1_sub2:areg_96 = COPY [[COPY]].sub1_sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_96 =COPY $vgpr0
+ %0.sub1_sub2:vreg_96 = COPY $vgpr1_vgpr2
+ undef %2.sub0:areg_96 = COPY %0.sub0
+ %2.sub1_sub2:areg_96 = COPY %0.sub1_sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_vgpr64_to_areg96_coalesce_with_av96_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1_vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr32_vgpr64_to_areg96_coalesce_with_av96_align2_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1_vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_96 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1_sub2:vreg_96 = COPY $vgpr1_vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1_sub2:areg_96_align2 = COPY [[COPY]].sub1_sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_96 =COPY $vgpr0
+ %0.sub1_sub2:vreg_96 = COPY $vgpr1_vgpr2
+ undef %2.sub0:areg_96_align2 = COPY %0.sub0
+ %2.sub1_sub2:areg_96_align2 = COPY %0.sub1_sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr64_vgpr32_to_areg96_coalesce_with_av96_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0_vgpr1, $vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr64_vgpr32_to_areg96_coalesce_with_av96_sub
+ ; CHECK: liveins: $vgpr0_vgpr1, $vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0_sub1:vreg_96 = COPY $vgpr0_vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2:vreg_96 = COPY $vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0_sub1:areg_96 = COPY [[COPY]].sub0_sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96 = COPY [[COPY]].sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0_sub1:vreg_96 = COPY $vgpr0_vgpr1
+ %0.sub2:vreg_96 = COPY $vgpr2
+ undef %2.sub0_sub1:areg_96 = COPY %0.sub0_sub1
+ %2.sub2:areg_96 = COPY %0.sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr64_vgpr32_to_areg96_coalesce_with_av96_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1_vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr64_vgpr32_to_areg96_coalesce_with_av96_align2_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1_vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0_sub1:vreg_96 = COPY $vgpr0_vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2:vreg_96 = COPY $vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0_sub1:areg_96_align2 = COPY [[COPY]].sub0_sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96_align2 = COPY [[COPY]].sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0_sub1:vreg_96 = COPY $vgpr0_vgpr1
+ %0.sub2:vreg_96 = COPY $vgpr2
+ undef %2.sub0_sub1:areg_96_align2 = COPY %0.sub0_sub1
+ %2.sub2:areg_96_align2 = COPY %0.sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_x2_to_areg64_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0
+
+ ; CHECK-LABEL: name: copy_vgpr32_x2_to_areg64_sub
+ ; CHECK: liveins: $vgpr0
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ undef %2.sub0:areg_64 = COPY %0.sub0
+ %2.sub1:areg_64 = COPY %0.sub0
+ INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, killed %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_x3_to_areg96_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0
+
+ ; CHECK-LABEL: name: copy_vgpr32_x3_to_areg96_sub
+ ; CHECK: liveins: $vgpr0
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ undef %1.sub0:areg_96 = COPY %0.sub0
+ %1.sub1:areg_96 = COPY %0.sub0
+ %1.sub2:areg_96 = COPY %0.sub0
+ INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, %1
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_x3_to_areg96_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0
+
+ ; CHECK-LABEL: name: copy_vgpr32_x3_to_areg96_align2_sub
+ ; CHECK: liveins: $vgpr0
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_96_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4915209 /* reguse:AReg_96_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ undef %1.sub0:areg_96_align2 = COPY %0.sub0
+ %1.sub1:areg_96_align2 = COPY %0.sub0
+ INLINEASM &"; use $0", 0 /* attdialect */, 4915209 /* reguse:AReg_96_Align2 */, %1
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_x4_to_areg128_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0
+
+ ; CHECK-LABEL: name: copy_vgpr32_x4_to_areg128_sub
+ ; CHECK: liveins: $vgpr0
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_128 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_128 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_128 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub3:areg_128 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 6029321 /* reguse:AReg_128 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ undef %1.sub0:areg_128 = COPY %0.sub0
+ %1.sub1:areg_128 = COPY %0.sub0
+ %1.sub2:areg_128 = COPY %0.sub0
+ %1.sub3:areg_128 = COPY %0.sub0
+ INLINEASM &"; use $0", 0 /* attdialect */, 6029321 /* reguse:AReg_128 */, killed %1
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_x4_to_areg128_align2_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0
+
+ ; CHECK-LABEL: name: copy_vgpr32_x4_to_areg128_align2_sub
+ ; CHECK: liveins: $vgpr0
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_128_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_128_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_128_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub3:areg_128_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 6291465 /* reguse:AReg_128_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ undef %1.sub0:areg_128_align2 = COPY %0.sub0
+ %1.sub1:areg_128_align2 = COPY %0.sub0
+ %1.sub2:areg_128_align2 = COPY %0.sub0
+ %1.sub3:areg_128_align2 = COPY %0.sub0
+ INLINEASM &"; use $0", 0 /* attdialect */, 6291465 /* reguse:AReg_128_Align2 */, %1
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg64_coalesce_with_av64_both_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg64_coalesce_with_av64_both_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_64 = COPY $vgpr1
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64 = COPY $vgpr0
+ %0.sub1:vreg_64 = COPY $vgpr1
+ undef %2.sub0:areg_64 = COPY %0.sub0
+ %2.sub1:areg_64 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 3473417 /* reguse:AReg_64 */, killed %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg64_align2_coalesce_with_av64_align2_both_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg64_align2_coalesce_with_av64_align2_both_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_64_align2 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_64_align2 = COPY $vgpr1
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_64_align2 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_64_align2 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_64_align2 = COPY $vgpr0
+ %0.sub1:vreg_64_align2 = COPY $vgpr1
+ undef %2.sub0:areg_64_align2 = COPY %0.sub0
+ %2.sub1:areg_64_align2 = COPY %0.sub1
+ INLINEASM &"; use $0", 0 /* attdialect */, 3735561 /* reguse:AReg_64_Align2 */, %2
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg96_coalesce_with_av96_both_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1, $vgpr2
+
+ ; CHECK-LABEL: name: copy_vgpr32_to_areg96_coalesce_with_av96_both_sub
+ ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2
+ ; CHECK-NEXT: {{ $}}
+ ; CHECK-NEXT: undef [[COPY:%[0-9]+]].sub0:vreg_96 = COPY $vgpr0
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub1:vreg_96 = COPY $vgpr1
+ ; CHECK-NEXT: [[COPY:%[0-9]+]].sub2:vreg_96 = COPY $vgpr2
+ ; CHECK-NEXT: undef [[COPY1:%[0-9]+]].sub0:areg_96 = COPY [[COPY]].sub0
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub1:areg_96 = COPY [[COPY]].sub1
+ ; CHECK-NEXT: [[COPY1:%[0-9]+]].sub2:areg_96 = COPY [[COPY]].sub2
+ ; CHECK-NEXT: INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, [[COPY1]]
+ ; CHECK-NEXT: SI_RETURN
+ undef %0.sub0:vreg_96 = COPY $vgpr0
+ %0.sub1:vreg_96 = COPY $vgpr1
+ %0.sub2:vreg_96 = COPY $vgpr2
+ undef %3.sub0:areg_96 = COPY %0.sub0
+ %3.sub1:areg_96 = COPY %0.sub1
+ %3.sub2:areg_96 = COPY %0.sub2
+ INLINEASM &"; use $0", 0 /* attdialect */, 4587529 /* reguse:AReg_96 */, %3
+ SI_RETURN
+
+...
+
+---
+name: copy_vgpr32_to_areg96_coalesce_with_av96_align2_both_sub
+tracksRegLiveness: true
+body: |
+ bb.0:
+ liveins: $vgpr0, $vgpr1, $...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/138617
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