--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.raw.buffer.atomic.ll	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,123 @@
+;RUN: llc < %s -march=amdgcn -mcpu=verde -amdgpu-atomic-optimizations=false -verify-machineinstrs | FileCheck %s -check-prefix=CHECK -check-prefix=SICI
+;RUN: llc < %s -march=amdgcn -mcpu=tonga -amdgpu-atomic-optimizations=false -verify-machineinstrs | FileCheck %s -check-prefix=CHECK -check-prefix=VI
+
+;CHECK-LABEL: {{^}}test1:
+;CHECK-NOT: s_waitcnt
+;CHECK: buffer_atomic_swap v0, off, s[0:3], 0 glc
+;CHECK: s_movk_i32 [[SOFS:s[0-9]+]], 0x1ffc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_swap v0, v1, s[0:3], 0 offen glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_swap v0, v1, s[0:3], 0 offen offset:42 glc
+;CHECK-DAG: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_swap v0, off, s[0:3], [[SOFS]] offset:4 glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_swap v0, off, s[0:3], 0{{$}}
+define amdgpu_ps float @test1(<4 x i32> inreg %rsrc, i32 %data, i32 %voffset) {
+main_body:
+  %o1 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %data, <4 x i32> %rsrc, i32 0, i32 0, i32 0)
+  %o3 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %o1, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %off5 = add i32 %voffset, 42
+  %o5 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %o3, <4 x i32> %rsrc, i32 %off5, i32 0, i32 0)
+  %o6 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %o5, <4 x i32> %rsrc, i32 4, i32 8188, i32 0)
+  %unused = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %o6, <4 x i32> %rsrc, i32 0, i32 0, i32 0)
+  %out = bitcast i32 %o6 to float
+  ret float %out
+}
+
+;CHECK-LABEL: {{^}}test2:
+;CHECK-NOT: s_waitcnt
+;CHECK: buffer_atomic_add v0, v1, s[0:3], 0 offen glc{{$}}
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_sub v0, v1, s[0:3], 0 offen glc slc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_smin v0, v1, s[0:3], 0 offen glc{{$}}
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_umin v0, v1, s[0:3], 0 offen glc slc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_smax v0, v1, s[0:3], 0 offen glc{{$}}
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_umax v0, v1, s[0:3], 0 offen glc slc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_and v0, v1, s[0:3], 0 offen glc{{$}}
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_or v0, v1, s[0:3], 0 offen glc slc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_xor v0, v1, s[0:3], 0 offen glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_inc v0, v1, s[0:3], 0 offen glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_dec v0, v1, s[0:3], 0 offen glc
+define amdgpu_ps float @test2(<4 x i32> inreg %rsrc, i32 %data, i32 %voffset) {
+main_body:
+  %t1 = call i32 @llvm.amdgcn.raw.buffer.atomic.add.i32(i32 %data, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t2 = call i32 @llvm.amdgcn.raw.buffer.atomic.sub.i32(i32 %t1, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 2)
+  %t3 = call i32 @llvm.amdgcn.raw.buffer.atomic.smin.i32(i32 %t2, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t4 = call i32 @llvm.amdgcn.raw.buffer.atomic.umin.i32(i32 %t3, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 2)
+  %t5 = call i32 @llvm.amdgcn.raw.buffer.atomic.smax.i32(i32 %t4, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t6 = call i32 @llvm.amdgcn.raw.buffer.atomic.umax.i32(i32 %t5, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 2)
+  %t7 = call i32 @llvm.amdgcn.raw.buffer.atomic.and.i32(i32 %t6, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t8 = call i32 @llvm.amdgcn.raw.buffer.atomic.or.i32(i32 %t7, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 2)
+  %t9 = call i32 @llvm.amdgcn.raw.buffer.atomic.xor.i32(i32 %t8, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t10 = call i32 @llvm.amdgcn.raw.buffer.atomic.inc.i32(i32 %t9, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %t11 = call i32 @llvm.amdgcn.raw.buffer.atomic.dec.i32(i32 %t10, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %out = bitcast i32 %t11 to float
+  ret float %out
+}
+
+; Ideally, we would teach tablegen & friends that cmpswap only modifies the
+; first vgpr. Since we don't do that yet, the register allocator will have to
+; create copies which we don't bother to track here.
+;
+;CHECK-LABEL: {{^}}test3:
+;CHECK-NOT: s_waitcnt
+;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, off, s[0:3], 0 glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: s_movk_i32 [[SOFS:s[0-9]+]], 0x1ffc
+;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v2, s[0:3], 0 offen glc
+;CHECK: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v2, s[0:3], 0 offen offset:44 glc
+;CHECK-DAG: s_waitcnt vmcnt(0)
+;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, off, s[0:3], [[SOFS]] offset:4 glc
+define amdgpu_ps float @test3(<4 x i32> inreg %rsrc, i32 %data, i32 %cmp, i32 %vindex, i32 %voffset) {
+main_body:
+  %o1 = call i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32 %data, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 0, i32 0)
+  %o3 = call i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32 %o1, i32 %cmp, <4 x i32> %rsrc, i32 %voffset, i32 0, i32 0)
+  %ofs.5 = add i32 %voffset, 44
+  %o5 = call i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32 %o3, i32 %cmp, <4 x i32> %rsrc, i32 %ofs.5, i32 0, i32 0)
+  %o6 = call i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32 %o5, i32 %cmp, <4 x i32> %rsrc, i32 4, i32 8188, i32 0)
+
+; Detecting the no-return variant doesn't work right now because of how the
+; intrinsic is replaced by an instruction that feeds into an EXTRACT_SUBREG.
+; Since there probably isn't a reasonable use-case of cmpswap that discards
+; the return value, that seems okay.
+;
+;  %unused = call i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32 %o6, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 0, i32 0)
+  %out = bitcast i32 %o6 to float
+  ret float %out
+}
+
+;CHECK-LABEL: {{^}}test4:
+;CHECK: buffer_atomic_add v0,
+define amdgpu_ps float @test4() {
+main_body:
+  %v = call i32 @llvm.amdgcn.raw.buffer.atomic.add.i32(i32 1, <4 x i32> undef, i32 4, i32 0, i32 0)
+  %v.float = bitcast i32 %v to float
+  ret float %v.float
+}
+
+declare i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.add.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.sub.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.smin.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.umin.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.smax.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.umax.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.and.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.or.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.xor.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.inc.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.dec.i32(i32, <4 x i32>, i32, i32, i32) #0
+declare i32 @llvm.amdgcn.raw.buffer.atomic.cmpswap.i32(i32, i32, <4 x i32>, i32, i32, i32) #0
+
+attributes #0 = { nounwind }