[llvm-branch-commits] [llvm] [AMDGPU] Fix setting nontemporal in memory legalizer (#83815) (PR #90204)
via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Fri Apr 26 05:48:54 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
Author: Jay Foad (jayfoad)
<details>
<summary>Changes</summary>
Iterator MI can advance in insertWait() but we need original instruction
to set temporal hint. Just move it before handling volatile.
---
Patch is 32.67 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/90204.diff
5 Files Affected:
- (modified) llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp (+5-5)
- (modified) llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll (+165)
- (modified) llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll (+158)
- (modified) llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll (+179)
- (modified) llvm/test/CodeGen/AMDGPU/memory-legalizer-private-nontemporal.ll (+203)
``````````diff
diff --git a/llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp b/llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp
index 84b9330ef9633e..50d8bfa8750818 100644
--- a/llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp
+++ b/llvm/lib/Target/AMDGPU/SIMemoryLegalizer.cpp
@@ -2358,6 +2358,11 @@ bool SIGfx12CacheControl::enableVolatileAndOrNonTemporal(
bool Changed = false;
+ if (IsNonTemporal) {
+ // Set non-temporal hint for all cache levels.
+ Changed |= setTH(MI, AMDGPU::CPol::TH_NT);
+ }
+
if (IsVolatile) {
Changed |= setScope(MI, AMDGPU::CPol::SCOPE_SYS);
@@ -2370,11 +2375,6 @@ bool SIGfx12CacheControl::enableVolatileAndOrNonTemporal(
Position::AFTER);
}
- if (IsNonTemporal) {
- // Set non-temporal hint for all cache levels.
- Changed |= setTH(MI, AMDGPU::CPol::TH_NT);
- }
-
return Changed;
}
diff --git a/llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll b/llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll
index a59c0394bebe20..ca7486536cf556 100644
--- a/llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll
+++ b/llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll
@@ -582,5 +582,170 @@ entry:
ret void
}
+define amdgpu_kernel void @flat_nontemporal_volatile_load(
+; GFX7-LABEL: flat_nontemporal_volatile_load:
+; GFX7: ; %bb.0: ; %entry
+; GFX7-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX7-NEXT: s_waitcnt lgkmcnt(0)
+; GFX7-NEXT: v_mov_b32_e32 v0, s0
+; GFX7-NEXT: v_mov_b32_e32 v1, s1
+; GFX7-NEXT: flat_load_dword v2, v[0:1] glc
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: v_mov_b32_e32 v0, s2
+; GFX7-NEXT: v_mov_b32_e32 v1, s3
+; GFX7-NEXT: s_waitcnt lgkmcnt(0)
+; GFX7-NEXT: flat_store_dword v[0:1], v2
+; GFX7-NEXT: s_endpgm
+;
+; GFX10-WGP-LABEL: flat_nontemporal_volatile_load:
+; GFX10-WGP: ; %bb.0: ; %entry
+; GFX10-WGP-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-WGP-NEXT: v_mov_b32_e32 v0, s0
+; GFX10-WGP-NEXT: v_mov_b32_e32 v1, s1
+; GFX10-WGP-NEXT: flat_load_dword v2, v[0:1] glc dlc
+; GFX10-WGP-NEXT: s_waitcnt vmcnt(0)
+; GFX10-WGP-NEXT: v_mov_b32_e32 v0, s2
+; GFX10-WGP-NEXT: v_mov_b32_e32 v1, s3
+; GFX10-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-WGP-NEXT: flat_store_dword v[0:1], v2
+; GFX10-WGP-NEXT: s_endpgm
+;
+; GFX10-CU-LABEL: flat_nontemporal_volatile_load:
+; GFX10-CU: ; %bb.0: ; %entry
+; GFX10-CU-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-CU-NEXT: v_mov_b32_e32 v0, s0
+; GFX10-CU-NEXT: v_mov_b32_e32 v1, s1
+; GFX10-CU-NEXT: flat_load_dword v2, v[0:1] glc dlc
+; GFX10-CU-NEXT: s_waitcnt vmcnt(0)
+; GFX10-CU-NEXT: v_mov_b32_e32 v0, s2
+; GFX10-CU-NEXT: v_mov_b32_e32 v1, s3
+; GFX10-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-CU-NEXT: flat_store_dword v[0:1], v2
+; GFX10-CU-NEXT: s_endpgm
+;
+; SKIP-CACHE-INV-LABEL: flat_nontemporal_volatile_load:
+; SKIP-CACHE-INV: ; %bb.0: ; %entry
+; SKIP-CACHE-INV-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; SKIP-CACHE-INV-NEXT: s_waitcnt lgkmcnt(0)
+; SKIP-CACHE-INV-NEXT: v_mov_b32_e32 v0, s0
+; SKIP-CACHE-INV-NEXT: v_mov_b32_e32 v1, s1
+; SKIP-CACHE-INV-NEXT: flat_load_dword v2, v[0:1] glc
+; SKIP-CACHE-INV-NEXT: s_waitcnt vmcnt(0)
+; SKIP-CACHE-INV-NEXT: v_mov_b32_e32 v0, s2
+; SKIP-CACHE-INV-NEXT: v_mov_b32_e32 v1, s3
+; SKIP-CACHE-INV-NEXT: s_waitcnt lgkmcnt(0)
+; SKIP-CACHE-INV-NEXT: flat_store_dword v[0:1], v2
+; SKIP-CACHE-INV-NEXT: s_endpgm
+;
+; GFX90A-NOTTGSPLIT-LABEL: flat_nontemporal_volatile_load:
+; GFX90A-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX90A-NOTTGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, s0
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, s1
+; GFX90A-NOTTGSPLIT-NEXT: flat_load_dword v2, v[0:1] glc
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, s3
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: flat_store_dword v[0:1], v2
+; GFX90A-NOTTGSPLIT-NEXT: s_endpgm
+;
+; GFX90A-TGSPLIT-LABEL: flat_nontemporal_volatile_load:
+; GFX90A-TGSPLIT: ; %bb.0: ; %entry
+; GFX90A-TGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX90A-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v0, s0
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v1, s1
+; GFX90A-TGSPLIT-NEXT: flat_load_dword v2, v[0:1] glc
+; GFX90A-TGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v1, s3
+; GFX90A-TGSPLIT-NEXT: flat_store_dword v[0:1], v2
+; GFX90A-TGSPLIT-NEXT: s_endpgm
+;
+; GFX940-NOTTGSPLIT-LABEL: flat_nontemporal_volatile_load:
+; GFX940-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX940-NOTTGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; GFX940-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, s0
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, s1
+; GFX940-NOTTGSPLIT-NEXT: flat_load_dword v2, v[0:1] sc0 sc1
+; GFX940-NOTTGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, s3
+; GFX940-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX940-NOTTGSPLIT-NEXT: flat_store_dword v[0:1], v2 sc0 sc1
+; GFX940-NOTTGSPLIT-NEXT: s_endpgm
+;
+; GFX940-TGSPLIT-LABEL: flat_nontemporal_volatile_load:
+; GFX940-TGSPLIT: ; %bb.0: ; %entry
+; GFX940-TGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; GFX940-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX940-TGSPLIT-NEXT: v_mov_b32_e32 v0, s0
+; GFX940-TGSPLIT-NEXT: v_mov_b32_e32 v1, s1
+; GFX940-TGSPLIT-NEXT: flat_load_dword v2, v[0:1] sc0 sc1
+; GFX940-TGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX940-TGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX940-TGSPLIT-NEXT: v_mov_b32_e32 v1, s3
+; GFX940-TGSPLIT-NEXT: flat_store_dword v[0:1], v2 sc0 sc1
+; GFX940-TGSPLIT-NEXT: s_endpgm
+;
+; GFX11-WGP-LABEL: flat_nontemporal_volatile_load:
+; GFX11-WGP: ; %bb.0: ; %entry
+; GFX11-WGP-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX11-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-WGP-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
+; GFX11-WGP-NEXT: flat_load_b32 v2, v[0:1] glc dlc
+; GFX11-WGP-NEXT: s_waitcnt vmcnt(0)
+; GFX11-WGP-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
+; GFX11-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-WGP-NEXT: flat_store_b32 v[0:1], v2
+; GFX11-WGP-NEXT: s_endpgm
+;
+; GFX11-CU-LABEL: flat_nontemporal_volatile_load:
+; GFX11-CU: ; %bb.0: ; %entry
+; GFX11-CU-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX11-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-CU-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
+; GFX11-CU-NEXT: flat_load_b32 v2, v[0:1] glc dlc
+; GFX11-CU-NEXT: s_waitcnt vmcnt(0)
+; GFX11-CU-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
+; GFX11-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-CU-NEXT: flat_store_b32 v[0:1], v2
+; GFX11-CU-NEXT: s_endpgm
+;
+; GFX12-WGP-LABEL: flat_nontemporal_volatile_load:
+; GFX12-WGP: ; %bb.0: ; %entry
+; GFX12-WGP-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX12-WGP-NEXT: s_wait_kmcnt 0x0
+; GFX12-WGP-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
+; GFX12-WGP-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_NT scope:SCOPE_SYS
+; GFX12-WGP-NEXT: s_wait_loadcnt 0x0
+; GFX12-WGP-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
+; GFX12-WGP-NEXT: s_wait_dscnt 0x0
+; GFX12-WGP-NEXT: flat_store_b32 v[0:1], v2
+; GFX12-WGP-NEXT: s_endpgm
+;
+; GFX12-CU-LABEL: flat_nontemporal_volatile_load:
+; GFX12-CU: ; %bb.0: ; %entry
+; GFX12-CU-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX12-CU-NEXT: s_wait_kmcnt 0x0
+; GFX12-CU-NEXT: v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
+; GFX12-CU-NEXT: flat_load_b32 v2, v[0:1] th:TH_LOAD_NT scope:SCOPE_SYS
+; GFX12-CU-NEXT: s_wait_loadcnt 0x0
+; GFX12-CU-NEXT: v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
+; GFX12-CU-NEXT: s_wait_dscnt 0x0
+; GFX12-CU-NEXT: flat_store_b32 v[0:1], v2
+; GFX12-CU-NEXT: s_endpgm
+ ptr %in, ptr %out) {
+entry:
+ %val = load volatile i32, ptr %in, align 4, !nontemporal !0
+ store i32 %val, ptr %out
+ ret void
+}
+
!0 = !{i32 1}
declare i32 @llvm.amdgcn.workitem.id.x()
diff --git a/llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll b/llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll
index 07a3f85066991b..b57d539ac18f0b 100644
--- a/llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll
+++ b/llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll
@@ -576,5 +576,163 @@ entry:
ret void
}
+define amdgpu_kernel void @global_nontemporal_volatile_load(
+; GFX6-LABEL: global_nontemporal_volatile_load:
+; GFX6: ; %bb.0: ; %entry
+; GFX6-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX6-NEXT: s_mov_b32 s7, 0x100f000
+; GFX6-NEXT: s_mov_b32 s6, -1
+; GFX6-NEXT: s_waitcnt lgkmcnt(0)
+; GFX6-NEXT: s_mov_b32 s4, s0
+; GFX6-NEXT: s_mov_b32 s5, s1
+; GFX6-NEXT: buffer_load_dword v0, off, s[4:7], 0 glc
+; GFX6-NEXT: s_waitcnt vmcnt(0)
+; GFX6-NEXT: s_mov_b32 s4, s2
+; GFX6-NEXT: s_mov_b32 s5, s3
+; GFX6-NEXT: buffer_store_dword v0, off, s[4:7], 0
+; GFX6-NEXT: s_endpgm
+;
+; GFX7-LABEL: global_nontemporal_volatile_load:
+; GFX7: ; %bb.0: ; %entry
+; GFX7-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX7-NEXT: s_waitcnt lgkmcnt(0)
+; GFX7-NEXT: v_mov_b32_e32 v0, s0
+; GFX7-NEXT: v_mov_b32_e32 v1, s1
+; GFX7-NEXT: flat_load_dword v2, v[0:1] glc
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: v_mov_b32_e32 v0, s2
+; GFX7-NEXT: v_mov_b32_e32 v1, s3
+; GFX7-NEXT: flat_store_dword v[0:1], v2
+; GFX7-NEXT: s_endpgm
+;
+; GFX10-WGP-LABEL: global_nontemporal_volatile_load:
+; GFX10-WGP: ; %bb.0: ; %entry
+; GFX10-WGP-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT: v_mov_b32_e32 v0, 0
+; GFX10-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-WGP-NEXT: global_load_dword v1, v0, s[0:1] glc dlc
+; GFX10-WGP-NEXT: s_waitcnt vmcnt(0)
+; GFX10-WGP-NEXT: global_store_dword v0, v1, s[2:3]
+; GFX10-WGP-NEXT: s_endpgm
+;
+; GFX10-CU-LABEL: global_nontemporal_volatile_load:
+; GFX10-CU: ; %bb.0: ; %entry
+; GFX10-CU-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT: v_mov_b32_e32 v0, 0
+; GFX10-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-CU-NEXT: global_load_dword v1, v0, s[0:1] glc dlc
+; GFX10-CU-NEXT: s_waitcnt vmcnt(0)
+; GFX10-CU-NEXT: global_store_dword v0, v1, s[2:3]
+; GFX10-CU-NEXT: s_endpgm
+;
+; SKIP-CACHE-INV-LABEL: global_nontemporal_volatile_load:
+; SKIP-CACHE-INV: ; %bb.0: ; %entry
+; SKIP-CACHE-INV-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s7, 0xf000
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s6, -1
+; SKIP-CACHE-INV-NEXT: s_waitcnt lgkmcnt(0)
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s4, s0
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s5, s1
+; SKIP-CACHE-INV-NEXT: buffer_load_dword v0, off, s[4:7], 0 glc
+; SKIP-CACHE-INV-NEXT: s_waitcnt vmcnt(0)
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s4, s2
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s5, s3
+; SKIP-CACHE-INV-NEXT: buffer_store_dword v0, off, s[4:7], 0
+; SKIP-CACHE-INV-NEXT: s_endpgm
+;
+; GFX90A-NOTTGSPLIT-LABEL: global_nontemporal_volatile_load:
+; GFX90A-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX90A-NOTTGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, 0
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: global_load_dword v1, v0, s[0:1] glc
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: global_store_dword v0, v1, s[2:3]
+; GFX90A-NOTTGSPLIT-NEXT: s_endpgm
+;
+; GFX90A-TGSPLIT-LABEL: global_nontemporal_volatile_load:
+; GFX90A-TGSPLIT: ; %bb.0: ; %entry
+; GFX90A-TGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v0, 0
+; GFX90A-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-TGSPLIT-NEXT: global_load_dword v1, v0, s[0:1] glc
+; GFX90A-TGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX90A-TGSPLIT-NEXT: global_store_dword v0, v1, s[2:3]
+; GFX90A-TGSPLIT-NEXT: s_endpgm
+;
+; GFX940-NOTTGSPLIT-LABEL: global_nontemporal_volatile_load:
+; GFX940-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX940-NOTTGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, 0
+; GFX940-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX940-NOTTGSPLIT-NEXT: global_load_dword v1, v0, s[0:1] sc0 sc1
+; GFX940-NOTTGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX940-NOTTGSPLIT-NEXT: global_store_dword v0, v1, s[2:3] sc0 sc1
+; GFX940-NOTTGSPLIT-NEXT: s_endpgm
+;
+; GFX940-TGSPLIT-LABEL: global_nontemporal_volatile_load:
+; GFX940-TGSPLIT: ; %bb.0: ; %entry
+; GFX940-TGSPLIT-NEXT: s_load_dwordx4 s[0:3], s[0:1], 0x0
+; GFX940-TGSPLIT-NEXT: v_mov_b32_e32 v0, 0
+; GFX940-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX940-TGSPLIT-NEXT: global_load_dword v1, v0, s[0:1] sc0 sc1
+; GFX940-TGSPLIT-NEXT: s_waitcnt vmcnt(0)
+; GFX940-TGSPLIT-NEXT: global_store_dword v0, v1, s[2:3] sc0 sc1
+; GFX940-TGSPLIT-NEXT: s_endpgm
+;
+; GFX11-WGP-LABEL: global_nontemporal_volatile_load:
+; GFX11-WGP: ; %bb.0: ; %entry
+; GFX11-WGP-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX11-WGP-NEXT: v_mov_b32_e32 v0, 0
+; GFX11-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-WGP-NEXT: global_load_b32 v1, v0, s[0:1] glc dlc
+; GFX11-WGP-NEXT: s_waitcnt vmcnt(0)
+; GFX11-WGP-NEXT: global_store_b32 v0, v1, s[2:3]
+; GFX11-WGP-NEXT: s_nop 0
+; GFX11-WGP-NEXT: s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-WGP-NEXT: s_endpgm
+;
+; GFX11-CU-LABEL: global_nontemporal_volatile_load:
+; GFX11-CU: ; %bb.0: ; %entry
+; GFX11-CU-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX11-CU-NEXT: v_mov_b32_e32 v0, 0
+; GFX11-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX11-CU-NEXT: global_load_b32 v1, v0, s[0:1] glc dlc
+; GFX11-CU-NEXT: s_waitcnt vmcnt(0)
+; GFX11-CU-NEXT: global_store_b32 v0, v1, s[2:3]
+; GFX11-CU-NEXT: s_nop 0
+; GFX11-CU-NEXT: s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-CU-NEXT: s_endpgm
+;
+; GFX12-WGP-LABEL: global_nontemporal_volatile_load:
+; GFX12-WGP: ; %bb.0: ; %entry
+; GFX12-WGP-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX12-WGP-NEXT: v_mov_b32_e32 v0, 0
+; GFX12-WGP-NEXT: s_wait_kmcnt 0x0
+; GFX12-WGP-NEXT: global_load_b32 v1, v0, s[0:1] th:TH_LOAD_NT scope:SCOPE_SYS
+; GFX12-WGP-NEXT: s_wait_loadcnt 0x0
+; GFX12-WGP-NEXT: global_store_b32 v0, v1, s[2:3]
+; GFX12-WGP-NEXT: s_nop 0
+; GFX12-WGP-NEXT: s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX12-WGP-NEXT: s_endpgm
+;
+; GFX12-CU-LABEL: global_nontemporal_volatile_load:
+; GFX12-CU: ; %bb.0: ; %entry
+; GFX12-CU-NEXT: s_load_b128 s[0:3], s[0:1], 0x0
+; GFX12-CU-NEXT: v_mov_b32_e32 v0, 0
+; GFX12-CU-NEXT: s_wait_kmcnt 0x0
+; GFX12-CU-NEXT: global_load_b32 v1, v0, s[0:1] th:TH_LOAD_NT scope:SCOPE_SYS
+; GFX12-CU-NEXT: s_wait_loadcnt 0x0
+; GFX12-CU-NEXT: global_store_b32 v0, v1, s[2:3]
+; GFX12-CU-NEXT: s_nop 0
+; GFX12-CU-NEXT: s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX12-CU-NEXT: s_endpgm
+ ptr addrspace(1) %in, ptr addrspace(1) %out) {
+entry:
+ %val = load volatile i32, ptr addrspace(1) %in, align 4, !nontemporal !0
+ store i32 %val, ptr addrspace(1) %out
+ ret void
+}
+
!0 = !{i32 1}
declare i32 @llvm.amdgcn.workitem.id.x()
diff --git a/llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll b/llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll
index 70c91d26006026..61e0ba8bd968ed 100644
--- a/llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll
+++ b/llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll
@@ -615,5 +615,184 @@ entry:
ret void
}
+define amdgpu_kernel void @local_nontemporal_volatile_load(
+; GFX6-LABEL: local_nontemporal_volatile_load:
+; GFX6: ; %bb.0: ; %entry
+; GFX6-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX6-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x2
+; GFX6-NEXT: s_mov_b32 m0, -1
+; GFX6-NEXT: s_mov_b32 s3, 0x100f000
+; GFX6-NEXT: s_waitcnt lgkmcnt(0)
+; GFX6-NEXT: v_mov_b32_e32 v0, s2
+; GFX6-NEXT: ds_read_b32 v0, v0
+; GFX6-NEXT: s_mov_b32 s2, -1
+; GFX6-NEXT: s_waitcnt lgkmcnt(0)
+; GFX6-NEXT: buffer_store_dword v0, off, s[0:3], 0
+; GFX6-NEXT: s_endpgm
+;
+; GFX7-LABEL: local_nontemporal_volatile_load:
+; GFX7: ; %bb.0: ; %entry
+; GFX7-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX7-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x2
+; GFX7-NEXT: s_mov_b32 m0, -1
+; GFX7-NEXT: s_waitcnt lgkmcnt(0)
+; GFX7-NEXT: v_mov_b32_e32 v0, s2
+; GFX7-NEXT: ds_read_b32 v2, v0
+; GFX7-NEXT: v_mov_b32_e32 v0, s0
+; GFX7-NEXT: v_mov_b32_e32 v1, s1
+; GFX7-NEXT: s_waitcnt lgkmcnt(0)
+; GFX7-NEXT: flat_store_dword v[0:1], v2
+; GFX7-NEXT: s_endpgm
+;
+; GFX10-WGP-LABEL: local_nontemporal_volatile_load:
+; GFX10-WGP: ; %bb.0: ; %entry
+; GFX10-WGP-NEXT: s_clause 0x1
+; GFX10-WGP-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x8
+; GFX10-WGP-NEXT: v_mov_b32_e32 v1, 0
+; GFX10-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-WGP-NEXT: v_mov_b32_e32 v0, s2
+; GFX10-WGP-NEXT: ds_read_b32 v0, v0
+; GFX10-WGP-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-WGP-NEXT: global_store_dword v1, v0, s[0:1]
+; GFX10-WGP-NEXT: s_endpgm
+;
+; GFX10-CU-LABEL: local_nontemporal_volatile_load:
+; GFX10-CU: ; %bb.0: ; %entry
+; GFX10-CU-NEXT: s_clause 0x1
+; GFX10-CU-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x8
+; GFX10-CU-NEXT: v_mov_b32_e32 v1, 0
+; GFX10-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-CU-NEXT: v_mov_b32_e32 v0, s2
+; GFX10-CU-NEXT: ds_read_b32 v0, v0
+; GFX10-CU-NEXT: s_waitcnt lgkmcnt(0)
+; GFX10-CU-NEXT: global_store_dword v1, v0, s[0:1]
+; GFX10-CU-NEXT: s_endpgm
+;
+; SKIP-CACHE-INV-LABEL: local_nontemporal_volatile_load:
+; SKIP-CACHE-INV: ; %bb.0: ; %entry
+; SKIP-CACHE-INV-NEXT: s_load_dword s2, s[0:1], 0x0
+; SKIP-CACHE-INV-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x2
+; SKIP-CACHE-INV-NEXT: s_mov_b32 m0, -1
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s3, 0xf000
+; SKIP-CACHE-INV-NEXT: s_waitcnt lgkmcnt(0)
+; SKIP-CACHE-INV-NEXT: v_mov_b32_e32 v0, s2
+; SKIP-CACHE-INV-NEXT: ds_read_b32 v0, v0
+; SKIP-CACHE-INV-NEXT: s_mov_b32 s2, -1
+; SKIP-CACHE-INV-NEXT: s_waitcnt lgkmcnt(0)
+; SKIP-CACHE-INV-NEXT: buffer_store_dword v0, off, s[0:3], 0
+; SKIP-CACHE-INV-NEXT: s_endpgm
+;
+; GFX90A-NOTTGSPLIT-LABEL: local_nontemporal_volatile_load:
+; GFX90A-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX90A-NOTTGSPLIT-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX90A-NOTTGSPLIT-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x8
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, 0
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX90A-NOTTGSPLIT-NEXT: ds_read_b32 v0, v0
+; GFX90A-NOTTGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-NOTTGSPLIT-NEXT: global_store_dword v1, v0, s[0:1]
+; GFX90A-NOTTGSPLIT-NEXT: s_endpgm
+;
+; GFX90A-TGSPLIT-LABEL: local_nontemporal_volatile_load:
+; GFX90A-TGSPLIT: ; %bb.0: ; %entry
+; GFX90A-TGSPLIT-NEXT: s_load_dword s2, s[4:5], 0x0
+; GFX90A-TGSPLIT-NEXT: s_load_dwordx2 s[0:1], s[4:5], 0x8
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v1, 0
+; GFX90A-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-TGSPLIT-NEXT: v_mov_b32_e32 v0, s2
+; GFX90A-TGSPLIT-NEXT: ds_read_b32 v0, v0
+; GFX90A-TGSPLIT-NEXT: s_waitcnt lgkmcnt(0)
+; GFX90A-TGSPLIT-NEXT: global_store_dword v1, v0, s[0:1]
+; GFX90A-TGSPLIT-NEXT: s_endpgm
+;
+; GFX940-NOTTGSPLIT-LABEL: local_nontemporal_volatile_load:
+; GFX940-NOTTGSPLIT: ; %bb.0: ; %entry
+; GFX940-NOTTGSPLIT-NEXT: s_load_dword s4, s[0:1], 0x0
+; GFX940-NOTTGSPLIT-NEXT: s_load_dwordx2 s[2:3], s[0:1], 0x8
+; GFX940-NOTTGSPLIT-NEXT: v_mov_b32_e32 v1, 0
+; GFX9...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/90204
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