4f672a34ed
Summary: The goal is for each operand type to have its own parse function and at the same time share common code for tracking state as different instruction types share operand types (e.g. glc/glc_flat, etc). Introduce parseAMDGPUOperand which can parse any optional operand. DPP and Clamp/OMod have custom handling for now. Sam also suggested to have class hierarchy for operand types instead of table. This can be done in separate change. Remove parseVOP3OptionalOps, parseDS*OptionalOps, parseFlatOptionalOps, parseMubufOptionalOps, parseDPPOptionalOps. Reduce number of definitions of AsmOperand's and MatchClasses' by using common base class. Rename AsmMatcher/InstPrinter methods accordingly. Print immediate type when printing parsed immediate operand. Use 'off' if offset/index register is unused instead of skipping it to make it more readable (also agreed with SP3). Update tests. Reviewers: tstellarAMD, SamWot, artem.tamazov Subscribers: qcolombet, arsenm, llvm-commits Differential Revision: http://reviews.llvm.org/D19584 llvm-svn: 268015
125 lines
6.6 KiB
LLVM
125 lines
6.6 KiB
LLVM
;RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck %s
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;RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s
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;CHECK-LABEL: {{^}}test1:
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;CHECK: buffer_atomic_swap v0, off, s[0:3], 0 glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_swap v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_swap v0, v2, s[0:3], 0 offen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_swap v0, v[1:2], s[0:3], 0 idxen offen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_swap v0, v2, s[0:3], 0 offen offset:42 glc
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;CHECK-DAG: s_waitcnt vmcnt(0)
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;CHECK-DAG: s_movk_i32 [[SOFS:s[0-9]+]], 0x1fff
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;CHECK: buffer_atomic_swap v0, off, s[0:3], [[SOFS]] offset:1 glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_swap v0, off, s[0:3], 0{{$}}
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define amdgpu_ps float @test1(<4 x i32> inreg %rsrc, i32 %data, i32 %vindex, i32 %voffset) {
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main_body:
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%o1 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %data, <4 x i32> %rsrc, i32 0, i32 0, i1 0)
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%o2 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o1, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%o3 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o2, <4 x i32> %rsrc, i32 0, i32 %voffset, i1 0)
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%o4 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o3, <4 x i32> %rsrc, i32 %vindex, i32 %voffset, i1 0)
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%ofs.5 = add i32 %voffset, 42
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%o5 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o4, <4 x i32> %rsrc, i32 0, i32 %ofs.5, i1 0)
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%o6 = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o5, <4 x i32> %rsrc, i32 0, i32 8192, i1 0)
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%unused = call i32 @llvm.amdgcn.buffer.atomic.swap(i32 %o6, <4 x i32> %rsrc, i32 0, i32 0, i1 0)
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%out = bitcast i32 %o6 to float
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ret float %out
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}
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;CHECK-LABEL: {{^}}test2:
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;CHECK: buffer_atomic_add v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_sub v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_smin v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_umin v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_smax v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_umax v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_and v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_or v0, v1, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_xor v0, v1, s[0:3], 0 idxen glc
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define amdgpu_ps float @test2(<4 x i32> inreg %rsrc, i32 %data, i32 %vindex) {
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main_body:
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%t1 = call i32 @llvm.amdgcn.buffer.atomic.add(i32 %data, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t2 = call i32 @llvm.amdgcn.buffer.atomic.sub(i32 %t1, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t3 = call i32 @llvm.amdgcn.buffer.atomic.smin(i32 %t2, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t4 = call i32 @llvm.amdgcn.buffer.atomic.umin(i32 %t3, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t5 = call i32 @llvm.amdgcn.buffer.atomic.smax(i32 %t4, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t6 = call i32 @llvm.amdgcn.buffer.atomic.umax(i32 %t5, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t7 = call i32 @llvm.amdgcn.buffer.atomic.and(i32 %t6, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t8 = call i32 @llvm.amdgcn.buffer.atomic.or(i32 %t7, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%t9 = call i32 @llvm.amdgcn.buffer.atomic.xor(i32 %t8, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%out = bitcast i32 %t9 to float
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ret float %out
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}
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; Ideally, we would teach tablegen & friends that cmpswap only modifies the
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; first vgpr. Since we don't do that yet, the register allocator will have to
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; create copies which we don't bother to track here.
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;
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;CHECK-LABEL: {{^}}test3:
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, off, s[0:3], 0 glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v2, s[0:3], 0 idxen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v3, s[0:3], 0 offen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v[2:3], s[0:3], 0 idxen offen glc
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;CHECK: s_waitcnt vmcnt(0)
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, v3, s[0:3], 0 offen offset:42 glc
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;CHECK-DAG: s_waitcnt vmcnt(0)
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;CHECK-DAG: s_movk_i32 [[SOFS:s[0-9]+]], 0x1fff
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;CHECK: buffer_atomic_cmpswap {{v\[[0-9]+:[0-9]+\]}}, off, s[0:3], [[SOFS]] offset:1 glc
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define amdgpu_ps float @test3(<4 x i32> inreg %rsrc, i32 %data, i32 %cmp, i32 %vindex, i32 %voffset) {
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main_body:
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%o1 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %data, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 0, i1 0)
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%o2 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o1, i32 %cmp, <4 x i32> %rsrc, i32 %vindex, i32 0, i1 0)
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%o3 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o2, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 %voffset, i1 0)
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%o4 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o3, i32 %cmp, <4 x i32> %rsrc, i32 %vindex, i32 %voffset, i1 0)
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%ofs.5 = add i32 %voffset, 42
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%o5 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o4, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 %ofs.5, i1 0)
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%o6 = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o5, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 8192, i1 0)
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; Detecting the no-return variant doesn't work right now because of how the
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; intrinsic is replaced by an instruction that feeds into an EXTRACT_SUBREG.
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; Since there probably isn't a reasonable use-case of cmpswap that discards
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; the return value, that seems okay.
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;
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; %unused = call i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32 %o6, i32 %cmp, <4 x i32> %rsrc, i32 0, i32 0, i1 0)
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%out = bitcast i32 %o6 to float
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ret float %out
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}
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;CHECK-LABEL: {{^}}test4:
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;CHECK: buffer_atomic_add v0,
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define amdgpu_ps float @test4() {
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main_body:
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%v = call i32 @llvm.amdgcn.buffer.atomic.add(i32 1, <4 x i32> undef, i32 0, i32 4, i1 false)
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%v.float = bitcast i32 %v to float
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ret float %v.float
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}
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declare i32 @llvm.amdgcn.buffer.atomic.swap(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.add(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.sub(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.smin(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.umin(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.smax(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.umax(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.and(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.or(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.xor(i32, <4 x i32>, i32, i32, i1) #0
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declare i32 @llvm.amdgcn.buffer.atomic.cmpswap(i32, i32, <4 x i32>, i32, i32, i1) #0
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attributes #0 = { nounwind }
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