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AlexMacleanAlexMaclean
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[NVPTX] Skip numbering unreferenced virtual registers (readability) (#154391)
When assigning numbers to registers, skip any with neither uses nor defs. This is will not have any impact at all on the final SASS but it makes for slightly more readable PTX. This change should also ensure that future minor changes are less likely to cause noisy diffs in register numbering.
1 parent 13faa15 commit d494eb0

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lines changed

‎llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp‎

Lines changed: 6 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -1458,7 +1458,6 @@ void NVPTXAsmPrinter::setAndEmitFunctionVirtualRegisters(
14581458
// Map the global virtual register number to a register class specific
14591459
// virtual register number starting from 1 with that class.
14601460
const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
1461-
//unsigned numRegClasses = TRI->getNumRegClasses();
14621461

14631462
// Emit the Fake Stack Object
14641463
const MachineFrameInfo &MFI = MF.getFrameInfo();
@@ -1479,13 +1478,12 @@ void NVPTXAsmPrinter::setAndEmitFunctionVirtualRegisters(
14791478
// global virtual
14801479
// register number and the per class virtual register number.
14811480
// We use the per class virtual register number in the ptx output.
1482-
unsigned int numVRs = MRI->getNumVirtRegs();
1483-
for (unsigned i = 0; i < numVRs; i++) {
1484-
Register vr = Register::index2VirtReg(i);
1485-
const TargetRegisterClass *RC = MRI->getRegClass(vr);
1486-
DenseMap<unsigned, unsigned> &regmap = VRegMapping[RC];
1487-
int n = regmap.size();
1488-
regmap.insert(std::make_pair(vr, n + 1));
1481+
for (unsigned I : llvm::seq(MRI->getNumVirtRegs())) {
1482+
Register VR = Register::index2VirtReg(I);
1483+
if (MRI->use_empty(VR) && MRI->def_empty(VR))
1484+
continue;
1485+
auto &RCRegMap = VRegMapping[MRI->getRegClass(VR)];
1486+
RCRegMap[VR] = RCRegMap.size() + 1;
14891487
}
14901488

14911489
// Emit declaration of the virtual registers or 'physical' registers for

‎llvm/test/CodeGen/NVPTX/aggregate-return.ll‎

Lines changed: 10 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@ declare {float, float} @bars({float, float} %input)
1010
define void @test_v2f32(<2 x float> %input, ptr %output) {
1111
; CHECK-LABEL: test_v2f32(
1212
; CHECK: {
13-
; CHECK-NEXT: .reg .b64 %rd<5>;
13+
; CHECK-NEXT: .reg .b64 %rd<4>;
1414
; CHECK-EMPTY:
1515
; CHECK-NEXT: // %bb.0:
1616
; CHECK-NEXT: ld.param.b64 %rd1, [test_v2f32_param_0];
@@ -21,8 +21,8 @@ define void @test_v2f32(<2 x float> %input, ptr %output) {
2121
; CHECK-NEXT: call.uni (retval0), barv, (param0);
2222
; CHECK-NEXT: ld.param.b64 %rd2, [retval0];
2323
; CHECK-NEXT: } // callseq 0
24-
; CHECK-NEXT: ld.param.b64 %rd4, [test_v2f32_param_1];
25-
; CHECK-NEXT: st.b64 [%rd4], %rd2;
24+
; CHECK-NEXT: ld.param.b64 %rd3, [test_v2f32_param_1];
25+
; CHECK-NEXT: st.b64 [%rd3], %rd2;
2626
; CHECK-NEXT: ret;
2727
%call = tail call <2 x float> @barv(<2 x float> %input)
2828
store <2 x float> %call, ptr %output, align 8
@@ -32,8 +32,8 @@ define void @test_v2f32(<2 x float> %input, ptr %output) {
3232
define void @test_v3f32(<3 x float> %input, ptr %output) {
3333
; CHECK-LABEL: test_v3f32(
3434
; CHECK: {
35-
; CHECK-NEXT: .reg .b32 %r<4>;
36-
; CHECK-NEXT: .reg .b64 %rd<5>;
35+
; CHECK-NEXT: .reg .b32 %r<3>;
36+
; CHECK-NEXT: .reg .b64 %rd<4>;
3737
; CHECK-EMPTY:
3838
; CHECK-NEXT: // %bb.0:
3939
; CHECK-NEXT: ld.param.b64 %rd1, [test_v3f32_param_0];
@@ -47,9 +47,9 @@ define void @test_v3f32(<3 x float> %input, ptr %output) {
4747
; CHECK-NEXT: ld.param.b32 %r2, [retval0+8];
4848
; CHECK-NEXT: ld.param.b64 %rd2, [retval0];
4949
; CHECK-NEXT: } // callseq 1
50-
; CHECK-NEXT: ld.param.b64 %rd4, [test_v3f32_param_1];
51-
; CHECK-NEXT: st.b32 [%rd4+8], %r2;
52-
; CHECK-NEXT: st.b64 [%rd4], %rd2;
50+
; CHECK-NEXT: ld.param.b64 %rd3, [test_v3f32_param_1];
51+
; CHECK-NEXT: st.b32 [%rd3+8], %r2;
52+
; CHECK-NEXT: st.b64 [%rd3], %rd2;
5353
; CHECK-NEXT: ret;
5454
%call = tail call <3 x float> @barv3(<3 x float> %input)
5555
; Make sure we don't load more values than than we need to.
@@ -60,7 +60,7 @@ define void @test_v3f32(<3 x float> %input, ptr %output) {
6060
define void @test_a2f32([2 x float] %input, ptr %output) {
6161
; CHECK-LABEL: test_a2f32(
6262
; CHECK: {
63-
; CHECK-NEXT: .reg .b32 %r<7>;
63+
; CHECK-NEXT: .reg .b32 %r<5>;
6464
; CHECK-NEXT: .reg .b64 %rd<2>;
6565
; CHECK-EMPTY:
6666
; CHECK-NEXT: // %bb.0:
@@ -87,7 +87,7 @@ define void @test_a2f32([2 x float] %input, ptr %output) {
8787
define void @test_s2f32({float, float} %input, ptr %output) {
8888
; CHECK-LABEL: test_s2f32(
8989
; CHECK: {
90-
; CHECK-NEXT: .reg .b32 %r<7>;
90+
; CHECK-NEXT: .reg .b32 %r<5>;
9191
; CHECK-NEXT: .reg .b64 %rd<2>;
9292
; CHECK-EMPTY:
9393
; CHECK-NEXT: // %bb.0:

‎llvm/test/CodeGen/NVPTX/atomics-sm70.ll‎

Lines changed: 62 additions & 62 deletions
Original file line numberDiff line numberDiff line change
@@ -47,90 +47,90 @@ define void @test(ptr %dp0, ptr addrspace(1) %dp1, ptr addrspace(3) %dp3, half %
4747
; CHECKPTX62: {
4848
; CHECKPTX62-NEXT: .reg .pred %p<5>;
4949
; CHECKPTX62-NEXT: .reg .b16 %rs<11>;
50-
; CHECKPTX62-NEXT: .reg .b32 %r<58>;
50+
; CHECKPTX62-NEXT: .reg .b32 %r<50>;
5151
; CHECKPTX62-EMPTY:
5252
; CHECKPTX62-NEXT: // %bb.0:
5353
; CHECKPTX62-NEXT: ld.param.b16 %rs1, [test_param_3];
54-
; CHECKPTX62-NEXT: ld.param.b32 %r23, [test_param_2];
55-
; CHECKPTX62-NEXT: ld.param.b32 %r22, [test_param_1];
56-
; CHECKPTX62-NEXT: ld.param.b32 %r24, [test_param_0];
57-
; CHECKPTX62-NEXT: and.b32 %r1, %r24, -4;
58-
; CHECKPTX62-NEXT: and.b32 %r25, %r24, 3;
59-
; CHECKPTX62-NEXT: shl.b32 %r2, %r25, 3;
60-
; CHECKPTX62-NEXT: mov.b32 %r26, 65535;
61-
; CHECKPTX62-NEXT: shl.b32 %r27, %r26, %r2;
62-
; CHECKPTX62-NEXT: not.b32 %r3, %r27;
63-
; CHECKPTX62-NEXT: ld.b32 %r54, [%r1];
54+
; CHECKPTX62-NEXT: ld.param.b32 %r15, [test_param_2];
55+
; CHECKPTX62-NEXT: ld.param.b32 %r14, [test_param_1];
56+
; CHECKPTX62-NEXT: ld.param.b32 %r16, [test_param_0];
57+
; CHECKPTX62-NEXT: and.b32 %r1, %r16, -4;
58+
; CHECKPTX62-NEXT: and.b32 %r17, %r16, 3;
59+
; CHECKPTX62-NEXT: shl.b32 %r2, %r17, 3;
60+
; CHECKPTX62-NEXT: mov.b32 %r18, 65535;
61+
; CHECKPTX62-NEXT: shl.b32 %r19, %r18, %r2;
62+
; CHECKPTX62-NEXT: not.b32 %r3, %r19;
63+
; CHECKPTX62-NEXT: ld.b32 %r46, [%r1];
6464
; CHECKPTX62-NEXT: $L__BB0_1: // %atomicrmw.start45
6565
; CHECKPTX62-NEXT: // =>This Inner Loop Header: Depth=1
66-
; CHECKPTX62-NEXT: shr.u32 %r28, %r54, %r2;
67-
; CHECKPTX62-NEXT: cvt.u16.u32 %rs2, %r28;
66+
; CHECKPTX62-NEXT: shr.u32 %r20, %r46, %r2;
67+
; CHECKPTX62-NEXT: cvt.u16.u32 %rs2, %r20;
6868
; CHECKPTX62-NEXT: add.rn.f16 %rs3, %rs2, %rs1;
69-
; CHECKPTX62-NEXT: cvt.u32.u16 %r29, %rs3;
70-
; CHECKPTX62-NEXT: shl.b32 %r30, %r29, %r2;
71-
; CHECKPTX62-NEXT: and.b32 %r31, %r54, %r3;
72-
; CHECKPTX62-NEXT: or.b32 %r32, %r31, %r30;
73-
; CHECKPTX62-NEXT: atom.relaxed.sys.cas.b32 %r6, [%r1], %r54, %r32;
74-
; CHECKPTX62-NEXT: setp.ne.b32 %p1, %r6, %r54;
75-
; CHECKPTX62-NEXT: mov.b32 %r54, %r6;
69+
; CHECKPTX62-NEXT: cvt.u32.u16 %r21, %rs3;
70+
; CHECKPTX62-NEXT: shl.b32 %r22, %r21, %r2;
71+
; CHECKPTX62-NEXT: and.b32 %r23, %r46, %r3;
72+
; CHECKPTX62-NEXT: or.b32 %r24, %r23, %r22;
73+
; CHECKPTX62-NEXT: atom.relaxed.sys.cas.b32 %r4, [%r1], %r46, %r24;
74+
; CHECKPTX62-NEXT: setp.ne.b32 %p1, %r4, %r46;
75+
; CHECKPTX62-NEXT: mov.b32 %r46, %r4;
7676
; CHECKPTX62-NEXT: @%p1 bra $L__BB0_1;
7777
; CHECKPTX62-NEXT: // %bb.2: // %atomicrmw.end44
78-
; CHECKPTX62-NEXT: ld.b32 %r55, [%r1];
78+
; CHECKPTX62-NEXT: ld.b32 %r47, [%r1];
7979
; CHECKPTX62-NEXT: $L__BB0_3: // %atomicrmw.start27
8080
; CHECKPTX62-NEXT: // =>This Inner Loop Header: Depth=1
81-
; CHECKPTX62-NEXT: shr.u32 %r33, %r55, %r2;
82-
; CHECKPTX62-NEXT: cvt.u16.u32 %rs4, %r33;
81+
; CHECKPTX62-NEXT: shr.u32 %r25, %r47, %r2;
82+
; CHECKPTX62-NEXT: cvt.u16.u32 %rs4, %r25;
8383
; CHECKPTX62-NEXT: mov.b16 %rs5, 0x3C00;
8484
; CHECKPTX62-NEXT: add.rn.f16 %rs6, %rs4, %rs5;
85-
; CHECKPTX62-NEXT: cvt.u32.u16 %r34, %rs6;
86-
; CHECKPTX62-NEXT: shl.b32 %r35, %r34, %r2;
87-
; CHECKPTX62-NEXT: and.b32 %r36, %r55, %r3;
88-
; CHECKPTX62-NEXT: or.b32 %r37, %r36, %r35;
89-
; CHECKPTX62-NEXT: atom.relaxed.sys.cas.b32 %r9, [%r1], %r55, %r37;
90-
; CHECKPTX62-NEXT: setp.ne.b32 %p2, %r9, %r55;
91-
; CHECKPTX62-NEXT: mov.b32 %r55, %r9;
85+
; CHECKPTX62-NEXT: cvt.u32.u16 %r26, %rs6;
86+
; CHECKPTX62-NEXT: shl.b32 %r27, %r26, %r2;
87+
; CHECKPTX62-NEXT: and.b32 %r28, %r47, %r3;
88+
; CHECKPTX62-NEXT: or.b32 %r29, %r28, %r27;
89+
; CHECKPTX62-NEXT: atom.relaxed.sys.cas.b32 %r5, [%r1], %r47, %r29;
90+
; CHECKPTX62-NEXT: setp.ne.b32 %p2, %r5, %r47;
91+
; CHECKPTX62-NEXT: mov.b32 %r47, %r5;
9292
; CHECKPTX62-NEXT: @%p2 bra $L__BB0_3;
9393
; CHECKPTX62-NEXT: // %bb.4: // %atomicrmw.end26
94-
; CHECKPTX62-NEXT: and.b32 %r10, %r22, -4;
95-
; CHECKPTX62-NEXT: shl.b32 %r38, %r22, 3;
96-
; CHECKPTX62-NEXT: and.b32 %r11, %r38, 24;
97-
; CHECKPTX62-NEXT: mov.b32 %r39, 65535;
98-
; CHECKPTX62-NEXT: shl.b32 %r40, %r39, %r11;
99-
; CHECKPTX62-NEXT: not.b32 %r12, %r40;
100-
; CHECKPTX62-NEXT: ld.global.b32 %r56, [%r10];
94+
; CHECKPTX62-NEXT: and.b32 %r6, %r14, -4;
95+
; CHECKPTX62-NEXT: shl.b32 %r30, %r14, 3;
96+
; CHECKPTX62-NEXT: and.b32 %r7, %r30, 24;
97+
; CHECKPTX62-NEXT: mov.b32 %r31, 65535;
98+
; CHECKPTX62-NEXT: shl.b32 %r32, %r31, %r7;
99+
; CHECKPTX62-NEXT: not.b32 %r8, %r32;
100+
; CHECKPTX62-NEXT: ld.global.b32 %r48, [%r6];
101101
; CHECKPTX62-NEXT: $L__BB0_5: // %atomicrmw.start9
102102
; CHECKPTX62-NEXT: // =>This Inner Loop Header: Depth=1
103-
; CHECKPTX62-NEXT: shr.u32 %r41, %r56, %r11;
104-
; CHECKPTX62-NEXT: cvt.u16.u32 %rs7, %r41;
103+
; CHECKPTX62-NEXT: shr.u32 %r33, %r48, %r7;
104+
; CHECKPTX62-NEXT: cvt.u16.u32 %rs7, %r33;
105105
; CHECKPTX62-NEXT: add.rn.f16 %rs8, %rs7, %rs1;
106-
; CHECKPTX62-NEXT: cvt.u32.u16 %r42, %rs8;
107-
; CHECKPTX62-NEXT: shl.b32 %r43, %r42, %r11;
108-
; CHECKPTX62-NEXT: and.b32 %r44, %r56, %r12;
109-
; CHECKPTX62-NEXT: or.b32 %r45, %r44, %r43;
110-
; CHECKPTX62-NEXT: atom.relaxed.sys.global.cas.b32 %r15, [%r10], %r56, %r45;
111-
; CHECKPTX62-NEXT: setp.ne.b32 %p3, %r15, %r56;
112-
; CHECKPTX62-NEXT: mov.b32 %r56, %r15;
106+
; CHECKPTX62-NEXT: cvt.u32.u16 %r34, %rs8;
107+
; CHECKPTX62-NEXT: shl.b32 %r35, %r34, %r7;
108+
; CHECKPTX62-NEXT: and.b32 %r36, %r48, %r8;
109+
; CHECKPTX62-NEXT: or.b32 %r37, %r36, %r35;
110+
; CHECKPTX62-NEXT: atom.relaxed.sys.global.cas.b32 %r9, [%r6], %r48, %r37;
111+
; CHECKPTX62-NEXT: setp.ne.b32 %p3, %r9, %r48;
112+
; CHECKPTX62-NEXT: mov.b32 %r48, %r9;
113113
; CHECKPTX62-NEXT: @%p3 bra $L__BB0_5;
114114
; CHECKPTX62-NEXT: // %bb.6: // %atomicrmw.end8
115-
; CHECKPTX62-NEXT: and.b32 %r16, %r23, -4;
116-
; CHECKPTX62-NEXT: shl.b32 %r46, %r23, 3;
117-
; CHECKPTX62-NEXT: and.b32 %r17, %r46, 24;
118-
; CHECKPTX62-NEXT: mov.b32 %r47, 65535;
119-
; CHECKPTX62-NEXT: shl.b32 %r48, %r47, %r17;
120-
; CHECKPTX62-NEXT: not.b32 %r18, %r48;
121-
; CHECKPTX62-NEXT: ld.shared.b32 %r57, [%r16];
115+
; CHECKPTX62-NEXT: and.b32 %r10, %r15, -4;
116+
; CHECKPTX62-NEXT: shl.b32 %r38, %r15, 3;
117+
; CHECKPTX62-NEXT: and.b32 %r11, %r38, 24;
118+
; CHECKPTX62-NEXT: mov.b32 %r39, 65535;
119+
; CHECKPTX62-NEXT: shl.b32 %r40, %r39, %r11;
120+
; CHECKPTX62-NEXT: not.b32 %r12, %r40;
121+
; CHECKPTX62-NEXT: ld.shared.b32 %r49, [%r10];
122122
; CHECKPTX62-NEXT: $L__BB0_7: // %atomicrmw.start
123123
; CHECKPTX62-NEXT: // =>This Inner Loop Header: Depth=1
124-
; CHECKPTX62-NEXT: shr.u32 %r49, %r57, %r17;
125-
; CHECKPTX62-NEXT: cvt.u16.u32 %rs9, %r49;
124+
; CHECKPTX62-NEXT: shr.u32 %r41, %r49, %r11;
125+
; CHECKPTX62-NEXT: cvt.u16.u32 %rs9, %r41;
126126
; CHECKPTX62-NEXT: add.rn.f16 %rs10, %rs9, %rs1;
127-
; CHECKPTX62-NEXT: cvt.u32.u16 %r50, %rs10;
128-
; CHECKPTX62-NEXT: shl.b32 %r51, %r50, %r17;
129-
; CHECKPTX62-NEXT: and.b32 %r52, %r57, %r18;
130-
; CHECKPTX62-NEXT: or.b32 %r53, %r52, %r51;
131-
; CHECKPTX62-NEXT: atom.relaxed.sys.shared.cas.b32 %r21, [%r16], %r57, %r53;
132-
; CHECKPTX62-NEXT: setp.ne.b32 %p4, %r21, %r57;
133-
; CHECKPTX62-NEXT: mov.b32 %r57, %r21;
127+
; CHECKPTX62-NEXT: cvt.u32.u16 %r42, %rs10;
128+
; CHECKPTX62-NEXT: shl.b32 %r43, %r42, %r11;
129+
; CHECKPTX62-NEXT: and.b32 %r44, %r49, %r12;
130+
; CHECKPTX62-NEXT: or.b32 %r45, %r44, %r43;
131+
; CHECKPTX62-NEXT: atom.relaxed.sys.shared.cas.b32 %r13, [%r10], %r49, %r45;
132+
; CHECKPTX62-NEXT: setp.ne.b32 %p4, %r13, %r49;
133+
; CHECKPTX62-NEXT: mov.b32 %r49, %r13;
134134
; CHECKPTX62-NEXT: @%p4 bra $L__BB0_7;
135135
; CHECKPTX62-NEXT: // %bb.8: // %atomicrmw.end
136136
; CHECKPTX62-NEXT: ret;

‎llvm/test/CodeGen/NVPTX/atomics-sm90.ll‎

Lines changed: 62 additions & 62 deletions
Original file line numberDiff line numberDiff line change
@@ -47,93 +47,93 @@ define void @test(ptr %dp0, ptr addrspace(1) %dp1, ptr addrspace(3) %dp3, bfloat
4747
; CHECKPTX71: {
4848
; CHECKPTX71-NEXT: .reg .pred %p<5>;
4949
; CHECKPTX71-NEXT: .reg .b16 %rs<14>;
50-
; CHECKPTX71-NEXT: .reg .b32 %r<58>;
50+
; CHECKPTX71-NEXT: .reg .b32 %r<50>;
5151
; CHECKPTX71-EMPTY:
5252
; CHECKPTX71-NEXT: // %bb.0:
5353
; CHECKPTX71-NEXT: ld.param.b16 %rs1, [test_param_3];
54-
; CHECKPTX71-NEXT: ld.param.b32 %r23, [test_param_2];
55-
; CHECKPTX71-NEXT: ld.param.b32 %r22, [test_param_1];
56-
; CHECKPTX71-NEXT: ld.param.b32 %r24, [test_param_0];
57-
; CHECKPTX71-NEXT: and.b32 %r1, %r24, -4;
58-
; CHECKPTX71-NEXT: and.b32 %r25, %r24, 3;
59-
; CHECKPTX71-NEXT: shl.b32 %r2, %r25, 3;
60-
; CHECKPTX71-NEXT: mov.b32 %r26, 65535;
61-
; CHECKPTX71-NEXT: shl.b32 %r27, %r26, %r2;
62-
; CHECKPTX71-NEXT: not.b32 %r3, %r27;
63-
; CHECKPTX71-NEXT: ld.b32 %r54, [%r1];
54+
; CHECKPTX71-NEXT: ld.param.b32 %r15, [test_param_2];
55+
; CHECKPTX71-NEXT: ld.param.b32 %r14, [test_param_1];
56+
; CHECKPTX71-NEXT: ld.param.b32 %r16, [test_param_0];
57+
; CHECKPTX71-NEXT: and.b32 %r1, %r16, -4;
58+
; CHECKPTX71-NEXT: and.b32 %r17, %r16, 3;
59+
; CHECKPTX71-NEXT: shl.b32 %r2, %r17, 3;
60+
; CHECKPTX71-NEXT: mov.b32 %r18, 65535;
61+
; CHECKPTX71-NEXT: shl.b32 %r19, %r18, %r2;
62+
; CHECKPTX71-NEXT: not.b32 %r3, %r19;
63+
; CHECKPTX71-NEXT: ld.b32 %r46, [%r1];
6464
; CHECKPTX71-NEXT: $L__BB0_1: // %atomicrmw.start45
6565
; CHECKPTX71-NEXT: // =>This Inner Loop Header: Depth=1
66-
; CHECKPTX71-NEXT: shr.u32 %r28, %r54, %r2;
67-
; CHECKPTX71-NEXT: cvt.u16.u32 %rs2, %r28;
66+
; CHECKPTX71-NEXT: shr.u32 %r20, %r46, %r2;
67+
; CHECKPTX71-NEXT: cvt.u16.u32 %rs2, %r20;
6868
; CHECKPTX71-NEXT: mov.b16 %rs3, 0x3F80;
6969
; CHECKPTX71-NEXT: fma.rn.bf16 %rs4, %rs2, %rs3, %rs1;
70-
; CHECKPTX71-NEXT: cvt.u32.u16 %r29, %rs4;
71-
; CHECKPTX71-NEXT: shl.b32 %r30, %r29, %r2;
72-
; CHECKPTX71-NEXT: and.b32 %r31, %r54, %r3;
73-
; CHECKPTX71-NEXT: or.b32 %r32, %r31, %r30;
74-
; CHECKPTX71-NEXT: atom.relaxed.sys.cas.b32 %r6, [%r1], %r54, %r32;
75-
; CHECKPTX71-NEXT: setp.ne.b32 %p1, %r6, %r54;
76-
; CHECKPTX71-NEXT: mov.b32 %r54, %r6;
70+
; CHECKPTX71-NEXT: cvt.u32.u16 %r21, %rs4;
71+
; CHECKPTX71-NEXT: shl.b32 %r22, %r21, %r2;
72+
; CHECKPTX71-NEXT: and.b32 %r23, %r46, %r3;
73+
; CHECKPTX71-NEXT: or.b32 %r24, %r23, %r22;
74+
; CHECKPTX71-NEXT: atom.relaxed.sys.cas.b32 %r4, [%r1], %r46, %r24;
75+
; CHECKPTX71-NEXT: setp.ne.b32 %p1, %r4, %r46;
76+
; CHECKPTX71-NEXT: mov.b32 %r46, %r4;
7777
; CHECKPTX71-NEXT: @%p1 bra $L__BB0_1;
7878
; CHECKPTX71-NEXT: // %bb.2: // %atomicrmw.end44
79-
; CHECKPTX71-NEXT: ld.b32 %r55, [%r1];
79+
; CHECKPTX71-NEXT: ld.b32 %r47, [%r1];
8080
; CHECKPTX71-NEXT: $L__BB0_3: // %atomicrmw.start27
8181
; CHECKPTX71-NEXT: // =>This Inner Loop Header: Depth=1
82-
; CHECKPTX71-NEXT: shr.u32 %r33, %r55, %r2;
83-
; CHECKPTX71-NEXT: cvt.u16.u32 %rs5, %r33;
82+
; CHECKPTX71-NEXT: shr.u32 %r25, %r47, %r2;
83+
; CHECKPTX71-NEXT: cvt.u16.u32 %rs5, %r25;
8484
; CHECKPTX71-NEXT: mov.b16 %rs6, 0x3F80;
8585
; CHECKPTX71-NEXT: fma.rn.bf16 %rs7, %rs5, %rs6, %rs6;
86-
; CHECKPTX71-NEXT: cvt.u32.u16 %r34, %rs7;
87-
; CHECKPTX71-NEXT: shl.b32 %r35, %r34, %r2;
88-
; CHECKPTX71-NEXT: and.b32 %r36, %r55, %r3;
89-
; CHECKPTX71-NEXT: or.b32 %r37, %r36, %r35;
90-
; CHECKPTX71-NEXT: atom.relaxed.sys.cas.b32 %r9, [%r1], %r55, %r37;
91-
; CHECKPTX71-NEXT: setp.ne.b32 %p2, %r9, %r55;
92-
; CHECKPTX71-NEXT: mov.b32 %r55, %r9;
86+
; CHECKPTX71-NEXT: cvt.u32.u16 %r26, %rs7;
87+
; CHECKPTX71-NEXT: shl.b32 %r27, %r26, %r2;
88+
; CHECKPTX71-NEXT: and.b32 %r28, %r47, %r3;
89+
; CHECKPTX71-NEXT: or.b32 %r29, %r28, %r27;
90+
; CHECKPTX71-NEXT: atom.relaxed.sys.cas.b32 %r5, [%r1], %r47, %r29;
91+
; CHECKPTX71-NEXT: setp.ne.b32 %p2, %r5, %r47;
92+
; CHECKPTX71-NEXT: mov.b32 %r47, %r5;
9393
; CHECKPTX71-NEXT: @%p2 bra $L__BB0_3;
9494
; CHECKPTX71-NEXT: // %bb.4: // %atomicrmw.end26
95-
; CHECKPTX71-NEXT: and.b32 %r10, %r22, -4;
96-
; CHECKPTX71-NEXT: shl.b32 %r38, %r22, 3;
97-
; CHECKPTX71-NEXT: and.b32 %r11, %r38, 24;
98-
; CHECKPTX71-NEXT: mov.b32 %r39, 65535;
99-
; CHECKPTX71-NEXT: shl.b32 %r40, %r39, %r11;
100-
; CHECKPTX71-NEXT: not.b32 %r12, %r40;
101-
; CHECKPTX71-NEXT: ld.global.b32 %r56, [%r10];
95+
; CHECKPTX71-NEXT: and.b32 %r6, %r14, -4;
96+
; CHECKPTX71-NEXT: shl.b32 %r30, %r14, 3;
97+
; CHECKPTX71-NEXT: and.b32 %r7, %r30, 24;
98+
; CHECKPTX71-NEXT: mov.b32 %r31, 65535;
99+
; CHECKPTX71-NEXT: shl.b32 %r32, %r31, %r7;
100+
; CHECKPTX71-NEXT: not.b32 %r8, %r32;
101+
; CHECKPTX71-NEXT: ld.global.b32 %r48, [%r6];
102102
; CHECKPTX71-NEXT: $L__BB0_5: // %atomicrmw.start9
103103
; CHECKPTX71-NEXT: // =>This Inner Loop Header: Depth=1
104-
; CHECKPTX71-NEXT: shr.u32 %r41, %r56, %r11;
105-
; CHECKPTX71-NEXT: cvt.u16.u32 %rs8, %r41;
104+
; CHECKPTX71-NEXT: shr.u32 %r33, %r48, %r7;
105+
; CHECKPTX71-NEXT: cvt.u16.u32 %rs8, %r33;
106106
; CHECKPTX71-NEXT: mov.b16 %rs9, 0x3F80;
107107
; CHECKPTX71-NEXT: fma.rn.bf16 %rs10, %rs8, %rs9, %rs1;
108-
; CHECKPTX71-NEXT: cvt.u32.u16 %r42, %rs10;
109-
; CHECKPTX71-NEXT: shl.b32 %r43, %r42, %r11;
110-
; CHECKPTX71-NEXT: and.b32 %r44, %r56, %r12;
111-
; CHECKPTX71-NEXT: or.b32 %r45, %r44, %r43;
112-
; CHECKPTX71-NEXT: atom.relaxed.sys.global.cas.b32 %r15, [%r10], %r56, %r45;
113-
; CHECKPTX71-NEXT: setp.ne.b32 %p3, %r15, %r56;
114-
; CHECKPTX71-NEXT: mov.b32 %r56, %r15;
108+
; CHECKPTX71-NEXT: cvt.u32.u16 %r34, %rs10;
109+
; CHECKPTX71-NEXT: shl.b32 %r35, %r34, %r7;
110+
; CHECKPTX71-NEXT: and.b32 %r36, %r48, %r8;
111+
; CHECKPTX71-NEXT: or.b32 %r37, %r36, %r35;
112+
; CHECKPTX71-NEXT: atom.relaxed.sys.global.cas.b32 %r9, [%r6], %r48, %r37;
113+
; CHECKPTX71-NEXT: setp.ne.b32 %p3, %r9, %r48;
114+
; CHECKPTX71-NEXT: mov.b32 %r48, %r9;
115115
; CHECKPTX71-NEXT: @%p3 bra $L__BB0_5;
116116
; CHECKPTX71-NEXT: // %bb.6: // %atomicrmw.end8
117-
; CHECKPTX71-NEXT: and.b32 %r16, %r23, -4;
118-
; CHECKPTX71-NEXT: shl.b32 %r46, %r23, 3;
119-
; CHECKPTX71-NEXT: and.b32 %r17, %r46, 24;
120-
; CHECKPTX71-NEXT: mov.b32 %r47, 65535;
121-
; CHECKPTX71-NEXT: shl.b32 %r48, %r47, %r17;
122-
; CHECKPTX71-NEXT: not.b32 %r18, %r48;
123-
; CHECKPTX71-NEXT: ld.shared.b32 %r57, [%r16];
117+
; CHECKPTX71-NEXT: and.b32 %r10, %r15, -4;
118+
; CHECKPTX71-NEXT: shl.b32 %r38, %r15, 3;
119+
; CHECKPTX71-NEXT: and.b32 %r11, %r38, 24;
120+
; CHECKPTX71-NEXT: mov.b32 %r39, 65535;
121+
; CHECKPTX71-NEXT: shl.b32 %r40, %r39, %r11;
122+
; CHECKPTX71-NEXT: not.b32 %r12, %r40;
123+
; CHECKPTX71-NEXT: ld.shared.b32 %r49, [%r10];
124124
; CHECKPTX71-NEXT: $L__BB0_7: // %atomicrmw.start
125125
; CHECKPTX71-NEXT: // =>This Inner Loop Header: Depth=1
126-
; CHECKPTX71-NEXT: shr.u32 %r49, %r57, %r17;
127-
; CHECKPTX71-NEXT: cvt.u16.u32 %rs11, %r49;
126+
; CHECKPTX71-NEXT: shr.u32 %r41, %r49, %r11;
127+
; CHECKPTX71-NEXT: cvt.u16.u32 %rs11, %r41;
128128
; CHECKPTX71-NEXT: mov.b16 %rs12, 0x3F80;
129129
; CHECKPTX71-NEXT: fma.rn.bf16 %rs13, %rs11, %rs12, %rs1;
130-
; CHECKPTX71-NEXT: cvt.u32.u16 %r50, %rs13;
131-
; CHECKPTX71-NEXT: shl.b32 %r51, %r50, %r17;
132-
; CHECKPTX71-NEXT: and.b32 %r52, %r57, %r18;
133-
; CHECKPTX71-NEXT: or.b32 %r53, %r52, %r51;
134-
; CHECKPTX71-NEXT: atom.relaxed.sys.shared.cas.b32 %r21, [%r16], %r57, %r53;
135-
; CHECKPTX71-NEXT: setp.ne.b32 %p4, %r21, %r57;
136-
; CHECKPTX71-NEXT: mov.b32 %r57, %r21;
130+
; CHECKPTX71-NEXT: cvt.u32.u16 %r42, %rs13;
131+
; CHECKPTX71-NEXT: shl.b32 %r43, %r42, %r11;
132+
; CHECKPTX71-NEXT: and.b32 %r44, %r49, %r12;
133+
; CHECKPTX71-NEXT: or.b32 %r45, %r44, %r43;
134+
; CHECKPTX71-NEXT: atom.relaxed.sys.shared.cas.b32 %r13, [%r10], %r49, %r45;
135+
; CHECKPTX71-NEXT: setp.ne.b32 %p4, %r13, %r49;
136+
; CHECKPTX71-NEXT: mov.b32 %r49, %r13;
137137
; CHECKPTX71-NEXT: @%p4 bra $L__BB0_7;
138138
; CHECKPTX71-NEXT: // %bb.8: // %atomicrmw.end
139139
; CHECKPTX71-NEXT: ret;

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