[llvm] [AtomicExpand] Drop explicit datalayout from test (PR #137923)

via llvm-commits llvm-commits at lists.llvm.org
Tue Apr 29 22:11:20 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Alexander Richardson (arichardson)

<details>
<summary>Changes</summary>

This results in different codegen for GCN and R600 but no further change.


---

Patch is 119.46 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/137923.diff


1 Files Affected:

- (modified) llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i16.ll (+1104-557) 


``````````diff
diff --git a/llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i16.ll b/llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i16.ll
index bb6596fb39b56..7d8c254251a48 100644
--- a/llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i16.ll
+++ b/llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i16.ll
@@ -3,33 +3,55 @@
 ; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=atomic-expand %s | FileCheck -check-prefixes=CHECK,GCN,GFX942 %s
 ; RUN: opt -mtriple=r600-mesa-mesa3d -S -passes=atomic-expand %s | FileCheck  -check-prefixes=CHECK,R600 %s
 
-target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-p7:160:256:256:32-p8:128:128-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
-
 define i16 @test_atomicrmw_xchg_i16_global_agent(ptr addrspace(1) %ptr, i16 %value) {
-; CHECK-LABEL: @test_atomicrmw_xchg_i16_global_agent(
-; CHECK-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
-; CHECK-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
-; CHECK-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
-; CHECK-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
-; CHECK-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
-; CHECK-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
-; CHECK-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
-; CHECK-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
-; CHECK-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
-; CHECK-NEXT:    br label [[ATOMICRMW_START:%.*]]
-; CHECK:       atomicrmw.start:
-; CHECK-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
-; CHECK-NEXT:    [[TMP6:%.*]] = or i32 [[TMP5]], [[VALOPERAND_SHIFTED]]
-; CHECK-NEXT:    [[TMP7:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP6]] syncscope("agent") seq_cst seq_cst, align 4
-; CHECK-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP7]], 1
-; CHECK-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP7]], 0
-; CHECK-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
-; CHECK:       atomicrmw.end:
-; CHECK-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
-; CHECK-NEXT:    ret i16 [[EXTRACTED]]
+; GCN-LABEL: @test_atomicrmw_xchg_i16_global_agent(
+; GCN-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
+; GCN-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
+; GCN-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
+; GCN-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
+; GCN-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
+; GCN-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
+; GCN-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; GCN-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; GCN-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
+; GCN-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; GCN-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; GCN:       atomicrmw.start:
+; GCN-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; GCN-NEXT:    [[TMP5:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; GCN-NEXT:    [[TMP6:%.*]] = or i32 [[TMP5]], [[VALOPERAND_SHIFTED]]
+; GCN-NEXT:    [[TMP7:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP6]] syncscope("agent") seq_cst seq_cst, align 4
+; GCN-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP7]], 1
+; GCN-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP7]], 0
+; GCN-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; GCN:       atomicrmw.end:
+; GCN-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
+; GCN-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; GCN-NEXT:    ret i16 [[EXTRACTED]]
+;
+; R600-LABEL: @test_atomicrmw_xchg_i16_global_agent(
+; R600-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) [[PTR:%.*]], i32 -4)
+; R600-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i32
+; R600-NEXT:    [[PTRLSB:%.*]] = and i32 [[TMP1]], 3
+; R600-NEXT:    [[TMP2:%.*]] = shl i32 [[PTRLSB]], 3
+; R600-NEXT:    [[MASK:%.*]] = shl i32 65535, [[TMP2]]
+; R600-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; R600-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; R600-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[TMP2]]
+; R600-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; R600-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; R600:       atomicrmw.start:
+; R600-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; R600-NEXT:    [[TMP5:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; R600-NEXT:    [[TMP6:%.*]] = or i32 [[TMP5]], [[VALOPERAND_SHIFTED]]
+; R600-NEXT:    [[TMP7:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP6]] syncscope("agent") seq_cst seq_cst, align 4
+; R600-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP7]], 1
+; R600-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP7]], 0
+; R600-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; R600:       atomicrmw.end:
+; R600-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[TMP2]]
+; R600-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; R600-NEXT:    ret i16 [[EXTRACTED]]
 ;
   %res = atomicrmw xchg ptr addrspace(1) %ptr, i16 %value syncscope("agent") seq_cst
   ret i16 %res
@@ -57,32 +79,58 @@ define i16 @test_atomicrmw_xchg_i16_global_agent_align4(ptr addrspace(1) %ptr, i
 }
 
 define i16 @test_atomicrmw_add_i16_global_agent(ptr addrspace(1) %ptr, i16 %value) {
-; CHECK-LABEL: @test_atomicrmw_add_i16_global_agent(
-; CHECK-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
-; CHECK-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
-; CHECK-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
-; CHECK-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
-; CHECK-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
-; CHECK-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
-; CHECK-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
-; CHECK-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
-; CHECK-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
-; CHECK-NEXT:    br label [[ATOMICRMW_START:%.*]]
-; CHECK:       atomicrmw.start:
-; CHECK-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
-; CHECK-NEXT:    [[NEW:%.*]] = add i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
-; CHECK-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
-; CHECK-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
-; CHECK-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
-; CHECK-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
-; CHECK-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
-; CHECK-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
-; CHECK:       atomicrmw.end:
-; CHECK-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
-; CHECK-NEXT:    ret i16 [[EXTRACTED]]
+; GCN-LABEL: @test_atomicrmw_add_i16_global_agent(
+; GCN-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
+; GCN-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
+; GCN-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
+; GCN-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
+; GCN-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
+; GCN-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
+; GCN-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; GCN-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; GCN-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
+; GCN-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; GCN-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; GCN:       atomicrmw.start:
+; GCN-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; GCN-NEXT:    [[NEW:%.*]] = add i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
+; GCN-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
+; GCN-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; GCN-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
+; GCN-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
+; GCN-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
+; GCN-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
+; GCN-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; GCN:       atomicrmw.end:
+; GCN-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
+; GCN-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; GCN-NEXT:    ret i16 [[EXTRACTED]]
+;
+; R600-LABEL: @test_atomicrmw_add_i16_global_agent(
+; R600-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) [[PTR:%.*]], i32 -4)
+; R600-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i32
+; R600-NEXT:    [[PTRLSB:%.*]] = and i32 [[TMP1]], 3
+; R600-NEXT:    [[TMP2:%.*]] = shl i32 [[PTRLSB]], 3
+; R600-NEXT:    [[MASK:%.*]] = shl i32 65535, [[TMP2]]
+; R600-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; R600-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; R600-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[TMP2]]
+; R600-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; R600-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; R600:       atomicrmw.start:
+; R600-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; R600-NEXT:    [[NEW:%.*]] = add i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
+; R600-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
+; R600-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; R600-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
+; R600-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
+; R600-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
+; R600-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
+; R600-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; R600:       atomicrmw.end:
+; R600-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[TMP2]]
+; R600-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; R600-NEXT:    ret i16 [[EXTRACTED]]
 ;
   %res = atomicrmw add ptr addrspace(1) %ptr, i16 %value syncscope("agent") seq_cst
   ret i16 %res
@@ -112,53 +160,94 @@ define i16 @test_atomicrmw_add_i16_global_agent_align4(ptr addrspace(1) %ptr, i1
 }
 
 define i16 @test_atomicrmw_sub_i16_global_agent(ptr addrspace(1) %ptr, i16 %value) {
-; CHECK-LABEL: @test_atomicrmw_sub_i16_global_agent(
-; CHECK-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
-; CHECK-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
-; CHECK-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
-; CHECK-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
-; CHECK-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
-; CHECK-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
-; CHECK-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
-; CHECK-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
-; CHECK-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
-; CHECK-NEXT:    br label [[ATOMICRMW_START:%.*]]
-; CHECK:       atomicrmw.start:
-; CHECK-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
-; CHECK-NEXT:    [[NEW:%.*]] = sub i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
-; CHECK-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
-; CHECK-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
-; CHECK-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
-; CHECK-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
-; CHECK-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
-; CHECK-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
-; CHECK:       atomicrmw.end:
-; CHECK-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
-; CHECK-NEXT:    ret i16 [[EXTRACTED]]
+; GCN-LABEL: @test_atomicrmw_sub_i16_global_agent(
+; GCN-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
+; GCN-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
+; GCN-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
+; GCN-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
+; GCN-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
+; GCN-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
+; GCN-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; GCN-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; GCN-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
+; GCN-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; GCN-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; GCN:       atomicrmw.start:
+; GCN-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; GCN-NEXT:    [[NEW:%.*]] = sub i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
+; GCN-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
+; GCN-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; GCN-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
+; GCN-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
+; GCN-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
+; GCN-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
+; GCN-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; GCN:       atomicrmw.end:
+; GCN-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[SHIFTAMT]]
+; GCN-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; GCN-NEXT:    ret i16 [[EXTRACTED]]
+;
+; R600-LABEL: @test_atomicrmw_sub_i16_global_agent(
+; R600-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) [[PTR:%.*]], i32 -4)
+; R600-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i32
+; R600-NEXT:    [[PTRLSB:%.*]] = and i32 [[TMP1]], 3
+; R600-NEXT:    [[TMP2:%.*]] = shl i32 [[PTRLSB]], 3
+; R600-NEXT:    [[MASK:%.*]] = shl i32 65535, [[TMP2]]
+; R600-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; R600-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; R600-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[TMP2]]
+; R600-NEXT:    [[TMP4:%.*]] = load i32, ptr addrspace(1) [[ALIGNEDADDR]], align 4
+; R600-NEXT:    br label [[ATOMICRMW_START:%.*]]
+; R600:       atomicrmw.start:
+; R600-NEXT:    [[LOADED:%.*]] = phi i32 [ [[TMP4]], [[TMP0:%.*]] ], [ [[NEWLOADED:%.*]], [[ATOMICRMW_START]] ]
+; R600-NEXT:    [[NEW:%.*]] = sub i32 [[LOADED]], [[VALOPERAND_SHIFTED]]
+; R600-NEXT:    [[TMP5:%.*]] = and i32 [[NEW]], [[MASK]]
+; R600-NEXT:    [[TMP6:%.*]] = and i32 [[LOADED]], [[INV_MASK]]
+; R600-NEXT:    [[TMP7:%.*]] = or i32 [[TMP6]], [[TMP5]]
+; R600-NEXT:    [[TMP8:%.*]] = cmpxchg ptr addrspace(1) [[ALIGNEDADDR]], i32 [[LOADED]], i32 [[TMP7]] syncscope("agent") seq_cst seq_cst, align 4
+; R600-NEXT:    [[SUCCESS:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
+; R600-NEXT:    [[NEWLOADED]] = extractvalue { i32, i1 } [[TMP8]], 0
+; R600-NEXT:    br i1 [[SUCCESS]], label [[ATOMICRMW_END:%.*]], label [[ATOMICRMW_START]]
+; R600:       atomicrmw.end:
+; R600-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[NEWLOADED]], [[TMP2]]
+; R600-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; R600-NEXT:    ret i16 [[EXTRACTED]]
 ;
   %res = atomicrmw sub ptr addrspace(1) %ptr, i16 %value syncscope("agent") seq_cst
   ret i16 %res
 }
 
 define i16 @test_atomicrmw_and_i16_global_agent(ptr addrspace(1) %ptr, i16 %value) {
-; CHECK-LABEL: @test_atomicrmw_and_i16_global_agent(
-; CHECK-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
-; CHECK-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
-; CHECK-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
-; CHECK-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
-; CHECK-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
-; CHECK-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
-; CHECK-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
-; CHECK-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
-; CHECK-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[ANDOPERAND:%.*]] = or i32 [[VALOPERAND_SHIFTED]], [[INV_MASK]]
-; CHECK-NEXT:    [[TMP4:%.*]] = atomicrmw and ptr addrspace(1) [[ALIGNEDADDR]], i32 [[ANDOPERAND]] syncscope("agent") seq_cst, align 4
-; CHECK-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[TMP4]], [[SHIFTAMT]]
-; CHECK-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
-; CHECK-NEXT:    ret i16 [[EXTRACTED]]
+; GCN-LABEL: @test_atomicrmw_and_i16_global_agent(
+; GCN-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i64(ptr addrspace(1) [[PTR:%.*]], i64 -4)
+; GCN-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i64
+; GCN-NEXT:    [[PTRLSB:%.*]] = and i64 [[TMP1]], 3
+; GCN-NEXT:    [[TMP2:%.*]] = shl i64 [[PTRLSB]], 3
+; GCN-NEXT:    [[SHIFTAMT:%.*]] = trunc i64 [[TMP2]] to i32
+; GCN-NEXT:    [[MASK:%.*]] = shl i32 65535, [[SHIFTAMT]]
+; GCN-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; GCN-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; GCN-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[SHIFTAMT]]
+; GCN-NEXT:    [[ANDOPERAND:%.*]] = or i32 [[VALOPERAND_SHIFTED]], [[INV_MASK]]
+; GCN-NEXT:    [[TMP4:%.*]] = atomicrmw and ptr addrspace(1) [[ALIGNEDADDR]], i32 [[ANDOPERAND]] syncscope("agent") seq_cst, align 4
+; GCN-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[TMP4]], [[SHIFTAMT]]
+; GCN-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; GCN-NEXT:    ret i16 [[EXTRACTED]]
+;
+; R600-LABEL: @test_atomicrmw_and_i16_global_agent(
+; R600-NEXT:    [[ALIGNEDADDR:%.*]] = call ptr addrspace(1) @llvm.ptrmask.p1.i32(ptr addrspace(1) [[PTR:%.*]], i32 -4)
+; R600-NEXT:    [[TMP1:%.*]] = ptrtoint ptr addrspace(1) [[PTR]] to i32
+; R600-NEXT:    [[PTRLSB:%.*]] = and i32 [[TMP1]], 3
+; R600-NEXT:    [[TMP2:%.*]] = shl i32 [[PTRLSB]], 3
+; R600-NEXT:    [[MASK:%.*]] = shl i32 65535, [[TMP2]]
+; R600-NEXT:    [[INV_MASK:%.*]] = xor i32 [[MASK]], -1
+; R600-NEXT:    [[TMP3:%.*]] = zext i16 [[VALUE:%.*]] to i32
+; R600-NEXT:    [[VALOPERAND_SHIFTED:%.*]] = shl i32 [[TMP3]], [[TMP2]]
+; R600-NEXT:    [[ANDOPERAND:%.*]] = or i32 [[VALOPERAND_SHIFTED]], [[INV_MASK]]
+; R600-NEXT:    [[TMP4:%.*]] = atomicrmw and ptr addrspace(1) [[ALIGNEDADDR]], i32 [[ANDOPERAND]] syncscope("agent") seq_cst, align 4
+; R600-NEXT:    [[SHIFTED:%.*]] = lshr i32 [[TMP4]], [[TMP2]]
+; R600-NEXT:    [[EXTRACTED:%.*]] = trunc i32 [[SHIFTED]] to i16
+; R600-NEXT:    ret i16 [[EXTRACTED]]
 ;
   %res = atomicrmw and ptr addrspace(1) %ptr, i16 %value syncscope("agent") seq_cst
   ret i16 %res
@@ -178,21 +267,36 @@ define ...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/137923


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