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[SPARC] Legalize truncation and extension between fp128 and half
Lower truncations and expansions between fp128 and half values into libcalls. Expand truncating stores into two separate truncation and a store operations. Reviewed By: jrtc27 Differential Revision: https://reviews.llvm.org/D104185
This commit is contained in:
LemonBoy
parent
478596b756
commit
71d85d4af9
@ -1480,6 +1480,7 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
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setTruncStoreAction(MVT::f32, MVT::f16, Expand);
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setTruncStoreAction(MVT::f64, MVT::f16, Expand);
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setTruncStoreAction(MVT::f64, MVT::f32, Expand);
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setTruncStoreAction(MVT::f128, MVT::f16, Expand);
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setTruncStoreAction(MVT::f128, MVT::f32, Expand);
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setTruncStoreAction(MVT::f128, MVT::f64, Expand);
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@ -1525,6 +1526,8 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
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setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand);
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setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand);
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setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand);
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setOperationAction(ISD::FP16_TO_FP, MVT::f128, Expand);
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setOperationAction(ISD::FP_TO_FP16, MVT::f128, Expand);
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setOperationAction(ISD::BITCAST, MVT::f32, Expand);
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setOperationAction(ISD::BITCAST, MVT::i32, Expand);
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@ -77,6 +77,90 @@ define double @test_fpextend_double(half* %p) nounwind {
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ret double %r
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}
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define void @test_fpextend_fp128(half* %p, fp128* %out) nounwind {
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; V8-OPT-LABEL: test_fpextend_fp128:
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; V8-OPT: ! %bb.0:
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; V8-OPT-NEXT: save %sp, -112, %sp
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; V8-OPT-NEXT: call __gnu_h2f_ieee
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; V8-OPT-NEXT: lduh [%i0], %o0
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; V8-OPT-NEXT: st %f0, [%fp+-20]
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; V8-OPT-NEXT: add %fp, -16, %i0
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; V8-OPT-NEXT: st %i0, [%sp+64]
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; V8-OPT-NEXT: call _Q_stoq
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; V8-OPT-NEXT: ld [%fp+-20], %o0
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; V8-OPT-NEXT: unimp 16
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; V8-OPT-NEXT: ldd [%fp+-16], %f0
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; V8-OPT-NEXT: ldd [%fp+-8], %f2
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; V8-OPT-NEXT: std %f2, [%i1+8]
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; V8-OPT-NEXT: std %f0, [%i1]
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; V8-OPT-NEXT: ret
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; V8-OPT-NEXT: restore
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;
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; V8-UNOPT-LABEL: test_fpextend_fp128:
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; V8-UNOPT: ! %bb.0:
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; V8-UNOPT-NEXT: save %sp, -112, %sp
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; V8-UNOPT-NEXT: call __gnu_h2f_ieee
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; V8-UNOPT-NEXT: lduh [%i0], %o0
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; V8-UNOPT-NEXT: st %f0, [%fp+-20]
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; V8-UNOPT-NEXT: add %fp, -16, %i0
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; V8-UNOPT-NEXT: st %i0, [%sp+64]
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; V8-UNOPT-NEXT: call _Q_stoq
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; V8-UNOPT-NEXT: ld [%fp+-20], %o0
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; V8-UNOPT-NEXT: unimp 16
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; V8-UNOPT-NEXT: ldd [%fp+-16], %f4
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; V8-UNOPT-NEXT: ! implicit-def: $q0
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; V8-UNOPT-NEXT: fmovs %f4, %f0
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; V8-UNOPT-NEXT: fmovs %f5, %f1
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; V8-UNOPT-NEXT: ldd [%fp+-8], %f4
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; V8-UNOPT-NEXT: fmovs %f4, %f2
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; V8-UNOPT-NEXT: fmovs %f5, %f3
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; V8-UNOPT-NEXT: fmovs %f2, %f4
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; V8-UNOPT-NEXT: fmovs %f3, %f5
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; V8-UNOPT-NEXT: std %f4, [%i1+8]
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; V8-UNOPT-NEXT: ! kill: def $d0 killed $d0 killed $q0
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; V8-UNOPT-NEXT: std %f0, [%i1]
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; V8-UNOPT-NEXT: ret
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; V8-UNOPT-NEXT: restore
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;
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; V9-LABEL: test_fpextend_fp128:
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; V9: ! %bb.0:
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; V9-NEXT: save %sp, -112, %sp
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; V9-NEXT: call __gnu_h2f_ieee
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; V9-NEXT: lduh [%i0], %o0
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; V9-NEXT: st %f0, [%fp+-20]
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; V9-NEXT: add %fp, -16, %i0
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; V9-NEXT: st %i0, [%sp+64]
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; V9-NEXT: call _Q_stoq
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; V9-NEXT: ld [%fp+-20], %o0
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; V9-NEXT: unimp 16
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; V9-NEXT: ldd [%fp+-16], %f0
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; V9-NEXT: ldd [%fp+-8], %f2
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; V9-NEXT: std %f2, [%i1+8]
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; V9-NEXT: std %f0, [%i1]
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; V9-NEXT: ret
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; V9-NEXT: restore
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;
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; SPARC64-LABEL: test_fpextend_fp128:
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; SPARC64: ! %bb.0:
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; SPARC64-NEXT: save %sp, -192, %sp
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; SPARC64-NEXT: call __gnu_h2f_ieee
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; SPARC64-NEXT: lduh [%i0], %o0
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; SPARC64-NEXT: add %fp, 2031, %o0
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; SPARC64-NEXT: fmovs %f0, %f3
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; SPARC64-NEXT: call _Qp_stoq
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; SPARC64-NEXT: nop
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; SPARC64-NEXT: ldd [%fp+2031], %f0
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; SPARC64-NEXT: ldd [%fp+2039], %f2
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; SPARC64-NEXT: std %f2, [%i1+8]
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; SPARC64-NEXT: std %f0, [%i1]
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; SPARC64-NEXT: ret
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; SPARC64-NEXT: restore
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%a = load half, half* %p
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%r = fpext half %a to fp128
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store fp128 %r, fp128* %out
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ret void
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}
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define void @test_fptrunc_float(float %f, half* %p) nounwind {
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; V8-OPT-LABEL: test_fptrunc_float:
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; V8-OPT: ! %bb.0:
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@ -181,6 +265,66 @@ define void @test_fptrunc_double(double %d, half* %p) nounwind {
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ret void
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}
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define void @test_fptrunc_fp128(fp128* %dp, half* %p) nounwind {
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; V8-OPT-LABEL: test_fptrunc_fp128:
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; V8-OPT: ! %bb.0:
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; V8-OPT-NEXT: save %sp, -104, %sp
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; V8-OPT-NEXT: ldd [%i0], %f0
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; V8-OPT-NEXT: ldd [%i0+8], %f2
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; V8-OPT-NEXT: std %f2, [%sp+100]
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; V8-OPT-NEXT: call __trunctfhf2
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; V8-OPT-NEXT: std %f0, [%sp+92]
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; V8-OPT-NEXT: sth %o0, [%i1]
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; V8-OPT-NEXT: ret
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; V8-OPT-NEXT: restore
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;
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; V8-UNOPT-LABEL: test_fptrunc_fp128:
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; V8-UNOPT: ! %bb.0:
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; V8-UNOPT-NEXT: save %sp, -104, %sp
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; V8-UNOPT-NEXT: ldd [%i0], %f4
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; V8-UNOPT-NEXT: ! implicit-def: $q0
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; V8-UNOPT-NEXT: fmovs %f4, %f0
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; V8-UNOPT-NEXT: fmovs %f5, %f1
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; V8-UNOPT-NEXT: ldd [%i0+8], %f4
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; V8-UNOPT-NEXT: fmovs %f4, %f2
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; V8-UNOPT-NEXT: fmovs %f5, %f3
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; V8-UNOPT-NEXT: fmovs %f2, %f4
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; V8-UNOPT-NEXT: fmovs %f3, %f5
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; V8-UNOPT-NEXT: std %f4, [%sp+100]
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; V8-UNOPT-NEXT: ! kill: def $d0 killed $d0 killed $q0
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; V8-UNOPT-NEXT: call __trunctfhf2
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; V8-UNOPT-NEXT: std %f0, [%sp+92]
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; V8-UNOPT-NEXT: sth %o0, [%i1]
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; V8-UNOPT-NEXT: ret
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; V8-UNOPT-NEXT: restore
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;
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; V9-LABEL: test_fptrunc_fp128:
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; V9: ! %bb.0:
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; V9-NEXT: save %sp, -104, %sp
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; V9-NEXT: ldd [%i0], %f0
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; V9-NEXT: ldd [%i0+8], %f2
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; V9-NEXT: std %f2, [%sp+100]
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; V9-NEXT: call __trunctfhf2
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; V9-NEXT: std %f0, [%sp+92]
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; V9-NEXT: sth %o0, [%i1]
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; V9-NEXT: ret
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; V9-NEXT: restore
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;
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; SPARC64-LABEL: test_fptrunc_fp128:
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; SPARC64: ! %bb.0:
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; SPARC64-NEXT: save %sp, -176, %sp
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; SPARC64-NEXT: ldd [%i0], %f0
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; SPARC64-NEXT: call __trunctfhf2
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; SPARC64-NEXT: ldd [%i0+8], %f2
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; SPARC64-NEXT: sth %o0, [%i1]
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; SPARC64-NEXT: ret
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; SPARC64-NEXT: restore
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%d = load fp128, fp128* %dp
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%a = fptrunc fp128 %d to half
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store half %a, half* %p
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ret void
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}
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define void @test_fadd(half* %p, half* %q) nounwind {
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; V8-OPT-LABEL: test_fadd:
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; V8-OPT: ! %bb.0:
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