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teak-llvm/llvm/test/CodeGen/ARM/fp16-instructions.ll
Kristof Beyls 78bfe3ab94 [ARM] Generate vcmp instead of vcmpe 
Based on the discussion in
http://lists.llvm.org/pipermail/llvm-dev/2019-October/135574.html, the
conclusion was reached that the ARM backend should produce vcmp instead
of vcmpe instructions by default, i.e. not be producing an Invalid
Operation exception when either arguments in a floating point compare
are quiet NaNs.

In the future, after constrained floating point intrinsics for floating
point compare have been introduced, vcmpe instructions probably should
be produced for those intrinsics - depending on the exact semantics
they'll be defined to have.

This patch logically consists of the following parts:
- Revert http://llvm.org/viewvc/llvm-project?rev=294945&view=rev and
  http://llvm.org/viewvc/llvm-project?rev=294968&view=rev, which
  implemented fine-tuning for when to produce vcmpe (i.e. not do it for
  equality comparisons). The complexity introduced by those patches
  isn't needed anymore if we just always produce vcmp instead. Maybe
  these patches need to be reintroduced again once support is needed to
  map potential LLVM-IR constrained floating point compare intrinsics to
  the ARM instruction set.
- Simply select vcmp, instead of vcmpe, see simple changes in
  lib/Target/ARM/ARMInstrVFP.td
- Adapt lots of tests that tested for vcmpe (instead of vcmp). For all
  of these test, the intent of what is tested for isn't related to
  whether the vcmp should produce an Invalid Operation exception or not.

Fixes PR43374.

Differential Revision: https://reviews.llvm.org/D68463

llvm-svn: 374025
2019-10-08 08:25:42 +00:00

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; SOFT:
; RUN: llc < %s -mtriple=arm-none-eabi -float-abi=soft | FileCheck %s --check-prefixes=CHECK,CHECK-SOFT
; RUN: llc < %s -mtriple=thumb-none-eabi -float-abi=soft | FileCheck %s --check-prefixes=CHECK,CHECK-SOFT
; RUN: llc < %s -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve | FileCheck %s --check-prefixes=CHECK,CHECK-SOFT
; RUN: llc < %s -mtriple=thumbv8.1m.main-none-eabi -float-abi=soft -mattr=+mve | FileCheck %s --check-prefixes=CHECK,CHECK-SOFT
; SOFTFP:
; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+vfp3 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-VFP3
; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+vfp4 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-FP16,CHECK-SOFTFP-FP16-A32
; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+fullfp16,+fp64 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-FULLFP16
; RUN: llc < %s -mtriple=thumbv7-none-eabi -mattr=+vfp3 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-VFP3
; RUN: llc < %s -mtriple=thumbv7-none-eabi -mattr=+vfp4 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-FP16,CHECK-SOFTFP-FP16-T32
; RUN: llc < %s -mtriple=thumbv7-none-eabi -mattr=+fullfp16,+fp64 | FileCheck %s --check-prefixes=CHECK,CHECK-SOFTFP-FULLFP16
; Test fast-isel
; RUN: llc < %s -mtriple=arm-none-eabi -mattr=+fullfp16,+fp64 -O0 | FileCheck %s --check-prefixes=CHECK-SPILL-RELOAD
; RUN: llc < %s -mtriple=thumbv7-none-eabi -mattr=+fullfp16,+fp64 -O0 | FileCheck %s --check-prefixes=CHECK-SPILL-RELOAD
; HARD:
; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+vfp3 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-VFP3
; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+vfp4 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FP16
; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+fullfp16,+fp64 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+vfp3 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-VFP3
; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+vfp4 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FP16
; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+fullfp16,fp64 | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16
; FP-CONTRACT=FAST
; RUN: llc < %s -mtriple=arm-none-eabihf -mattr=+fullfp16,+fp64 -fp-contract=fast | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16-FAST
; RUN: llc < %s -mtriple=thumbv7-none-eabihf -mattr=+fullfp16,+fp64 -fp-contract=fast | FileCheck %s --check-prefixes=CHECK,CHECK-HARDFP-FULLFP16-FAST
; TODO: we can't pass half-precision arguments as "half" types yet. We do
; that for the time being by passing "float %f.coerce" and the necessary
; bitconverts/truncates. But when we can pass half types, we do want to use
; and test that here.
define float @RetValBug(float %A.coerce) {
entry:
ret float undef
; Check thatLowerReturn can handle undef nodes (i.e. nodes which do not have
; any operands) when FullFP16 is enabled.
;
; CHECK-LABEL: RetValBug:
; CHECK-HARDFP-FULLFP16: {{.*}} lr
}
; 2. VADD
define float @Add(float %a.coerce, float %b.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%add = fadd half %1, %3
%4 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: Add:
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_fadd
; CHECK-SOFT: bl __aeabi_f2h
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: vadd.f32
; CHECK-SOFTFP-VFP3: bl __aeabi_f2h
; CHECK-SOFTFP-FP16: vmov [[S2:s[0-9]]], r1
; CHECK-SOFTFP-FP16: vmov [[S0:s[0-9]]], r0
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S2]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vadd.f32 [[S0]], [[S0]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vmov r0, s0
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], r1
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vadd.f16 [[S0]], [[S2]], [[S0]]
; CHECK-SOFTFP-FULLFP16-NEXT: vmov.f16 r0, s0
; CHECK-HARDFP-VFP3: vmov r{{.}}, s0
; CHECK-HARDFP-VFP3: vmov{{.*}}, s1
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: vadd.f32
; CHECK-HARDFP-VFP3: bl __aeabi_f2h
; CHECK-HARDFP-VFP3: vmov s0, r0
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S2:s[0-9]]], s1
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S0:s[0-9]]], s0
; CHECK-HARDFP-FP16: vadd.f32 [[S0]], [[S0]], [[S2]]
; CHECK-HARDFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-HARDFP-FULLFP16: vadd.f16 s0, s0, s1
}
; 3. VCMP
define zeroext i1 @VCMP1(float %F.coerce, float %G.coerce) {
entry:
%0 = bitcast float %F.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %G.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%cmp = fcmp une half %1, %3
ret i1 %cmp
; CHECK-LABEL: VCMP1:
; CHECK-SOFT: bl __aeabi_fcmpeq
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: vcmp.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16: vcmp.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], r1
; CHECK-SOFTFP-FULLFP16: vcmp.f16 [[S2]], [[S0]]
; CHECK-HARDFP-FULLFP16-NOT: vmov.f16 s{{.}}, r0
; CHECK-HARDFP-FULLFP16-NOT: vmov.f16 s{{.}}, r1
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, s1
}
; Check VCMPZH
define zeroext i1 @VCMP2(float %F.coerce) {
entry:
%0 = bitcast float %F.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%cmp = fcmp une half %1, 0.000000e+00
ret i1 %cmp
; CHECK-LABEL: VCMP2:
; CHECK-SOFT: bl __aeabi_fcmpeq
; CHECK-SOFTFP-FP16: vcmp.f32 s0, #0
; CHECK-SOFTFP-FULLFP16: vcmp.f16 s0, #0
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, #0
}
; 4. VCMPE
define i32 @VCMPE1(float %F.coerce) {
entry:
%0 = bitcast float %F.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%tmp = fcmp olt half %1, 0.000000e+00
%tmp1 = zext i1 %tmp to i32
ret i32 %tmp1
; CHECK-LABEL: VCMPE1:
; CHECK-SOFT: bl __aeabi_fcmplt
; CHECK-SOFTFP-FP16: vcmp.f32 s0, #0
; CHECK-SOFTFP-FULLFP16: vcmp.f16 s0, #0
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, #0
}
define i32 @VCMPE2(float %F.coerce, float %G.coerce) {
entry:
%0 = bitcast float %F.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %G.coerce to i32
%tmp.1.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp.1.extract.trunc to half
%tmp = fcmp olt half %1, %3
%tmp1 = zext i1 %tmp to i32
ret i32 %tmp1
; CHECK-LABEL: VCMPE2:
; CHECK-SOFT: bl __aeabi_fcmplt
; CHECK-SOFTFP-FP16: vcmp.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FULLFP16: vcmp.f16 s{{.}}, s{{.}}
; CHECK-HARDFP-FULLFP16: vcmp.f16 s{{.}}, s{{.}}
}
; Test lowering of BR_CC
define hidden i32 @VCMPBRCC() {
entry:
%f = alloca half, align 2
br label %for.cond
for.cond:
%0 = load half, half* %f, align 2
%cmp = fcmp nnan ninf nsz ole half %0, 0xH6800
br i1 %cmp, label %for.body, label %for.end
for.body:
ret i32 1
for.end:
ret i32 0
; CHECK-LABEL: VCMPBRCC:
; CHECK-SOFT: bl __aeabi_fcmp{{gt|le}}
; CHECK-SOFT: cmp r0, #{{0|1}}
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S2:s[0-9]]], [[S2]]
; CHECK-SOFTFP-FP16: vcmp.f32 [[S2]], s0
; CHECK-SOFTFP-FP16: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FULLFP16: vcmp.f16 s{{.}}, s{{.}}
; CHECK-SOFTFP-FULLFP16: vmrs APSR_nzcv, fpscr
}
; 5. VCVT (between floating-point and fixed-point)
; Only assembly/disassembly support
; 6. VCVT (between floating-point and integer, both directions)
define i32 @fptosi(i32 %A.coerce) {
entry:
%tmp.0.extract.trunc = trunc i32 %A.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%conv = fptosi half %0 to i32
ret i32 %conv
; CHECK-LABEL: fptosi:
; CHECK-HARDFP-FULLFP16: vmov.f16 s0, r0
; CHECK-HARDFP-FULLFP16-NEXT: vcvt.s32.f16 s0, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmov r0, s0
}
define i32 @fptoui(i32 %A.coerce) {
entry:
%tmp.0.extract.trunc = trunc i32 %A.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%conv = fptoui half %0 to i32
ret i32 %conv
; CHECK-HARDFP-FULLFP16: vcvt.u32.f16 s0, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmov r0, s0
}
define float @UintToH(i32 %a, i32 %b) {
entry:
%0 = uitofp i32 %a to half
%1 = bitcast half %0 to i16
%tmp0.insert.ext = zext i16 %1 to i32
%2 = bitcast i32 %tmp0.insert.ext to float
ret float %2
; CHECK-LABEL: UintToH:
; CHECK-HARDFP-FULLFP16: vmov s0, r0
; CHECK-HARDFP-FULLFP16-NEXT: vcvt.f16.u32 s0, s0
}
define float @SintToH(i32 %a, i32 %b) {
entry:
%0 = sitofp i32 %a to half
%1 = bitcast half %0 to i16
%tmp0.insert.ext = zext i16 %1 to i32
%2 = bitcast i32 %tmp0.insert.ext to float
ret float %2
; CHECK-LABEL: SintToH:
; CHECK-HARDFP-FULLFP16: vmov s0, r0
; CHECK-HARDFP-FULLFP16-NEXT: vcvt.f16.s32 s0, s0
}
define i32 @f2h(float %f) {
entry:
%conv = fptrunc float %f to half
%0 = bitcast half %conv to i16
%tmp.0.insert.ext = zext i16 %0 to i32
ret i32 %tmp.0.insert.ext
; CHECK-LABEL: f2h:
; CHECK-HARDFP-FULLFP16: vcvtb.f16.f32 s0, s0
}
define float @h2f(i32 %h.coerce) {
entry:
%tmp.0.extract.trunc = trunc i32 %h.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%conv = fpext half %0 to float
ret float %conv
; CHECK-LABEL: h2f:
; CHECK-HARDFP-FULLFP16: vcvtb.f32.f16 s0, s0
}
define double @h2d(i32 %h.coerce) {
entry:
%tmp.0.extract.trunc = trunc i32 %h.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%conv = fpext half %0 to double
ret double %conv
; CHECK-LABEL: h2d:
; CHECK-HARDFP-FULLFP16: vcvtb.f64.f16 d{{.*}}, s{{.}}
}
define i32 @d2h(double %d) {
entry:
%conv = fptrunc double %d to half
%0 = bitcast half %conv to i16
%tmp.0.insert.ext = zext i16 %0 to i32
ret i32 %tmp.0.insert.ext
; CHECK-LABEL: d2h:
; CHECK-HARDFP-FULLFP16: vcvtb.f16.f64 s0, d{{.*}}
}
; TODO:
; 7. VCVTA
; 8. VCVTM
; 9. VCVTN
; 10. VCVTP
; 11. VCVTR
; 12. VDIV
define float @Div(float %a.coerce, float %b.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%add = fdiv half %1, %3
%4 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: Div:
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_fdiv
; CHECK-SOFT: bl __aeabi_f2h
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: vdiv.f32
; CHECK-SOFTFP-VFP3: bl __aeabi_f2h
; CHECK-SOFTFP-FP16: vmov [[S2:s[0-9]]], r1
; CHECK-SOFTFP-FP16: vmov [[S0:s[0-9]]], r0
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S2]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vdiv.f32 [[S0]], [[S0]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vmov r0, s0
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], r1
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vdiv.f16 [[S0]], [[S2]], [[S0]]
; CHECK-SOFTFP-FULLFP16-NEXT: vmov.f16 r0, s0
; CHECK-HARDFP-VFP3: vmov r{{.}}, s0
; CHECK-HARDFP-VFP3: vmov{{.*}}, s1
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: vdiv.f32
; CHECK-HARDFP-VFP3: bl __aeabi_f2h
; CHECK-HARDFP-VFP3: vmov s0, r0
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S2:s[0-9]]], s1
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S0:s[0-9]]], s0
; CHECK-HARDFP-FP16: vdiv.f32 [[S0]], [[S0]], [[S2]]
; CHECK-HARDFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-HARDFP-FULLFP16: vdiv.f16 s0, s0, s1
}
; 13. VFMA
define float @VFMA(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%add = fadd half %mul, %5
%6 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VFMA:
; CHECK-HARDFP-FULLFP16-FAST: vfma.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-FAST-NEXT: vmov.f32 s0, s2
}
; 14. VFMS
define float @VFMS(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%sub = fsub half %5, %mul
%6 = bitcast half %sub to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VFMS:
; CHECK-HARDFP-FULLFP16-FAST: vfms.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-FAST-NEXT: vmov.f32 s0, s2
}
; 15. VFNMA
define float @VFNMA(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%sub = fsub half -0.0, %mul
%sub2 = fsub half %sub, %5
%6 = bitcast half %sub2 to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VFNMA:
; CHECK-HARDFP-FULLFP16-FAST: vfnma.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-FAST-NEXT: vmov.f32 s0, s2
}
; 16. VFNMS
define float @VFNMS(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%sub2 = fsub half %mul, %5
%6 = bitcast half %sub2 to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VFNMS:
; CHECK-HARDFP-FULLFP16-FAST: vfnms.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-FAST-NEXT: vmov.f32 s0, s2
}
; 17. VMAXNM
; 18. VMINNM
; Tested in fp16-vminmaxnm.ll and fp16-vminmaxnm-safe.ll
; 19. VMLA
define float @VMLA(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%add = fadd half %5, %mul
%6 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VMLA:
; CHECK-HARDFP-FULLFP16: vmla.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-NEXT: vmov.f32 s0, s2
}
; 20. VMLS
define float @VMLS(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%mul = fmul half %1, %3
%add = fsub half %5, %mul
%6 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VMLS:
; CHECK-HARDFP-FULLFP16: vmls.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16-NEXT: vmov.f32 s0, s2
}
; TODO: fix immediates.
; 21. VMOV (between general-purpose register and half-precision register)
; 22. VMOV (immediate)
define i32 @movi(i32 %a.coerce) {
entry:
%tmp.0.extract.trunc = trunc i32 %a.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%add = fadd half %0, 0xHC000
%1 = bitcast half %add to i16
%tmp2.0.insert.ext = zext i16 %1 to i32
ret i32 %tmp2.0.insert.ext
; CHECK-LABEL: movi:
; CHECK-HARDFP-FULLFP16: vmov.f16 s0, #-2.000000e+00
}
; 23. VMUL
define float @Mul(float %a.coerce, float %b.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%add = fmul half %1, %3
%4 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: Mul:
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_fmul
; CHECK-SOFT: bl __aeabi_f2h
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: vmul.f32
; CHECK-SOFTFP-VFP3: bl __aeabi_f2h
; CHECK-SOFTFP-FP16: vmov [[S2:s[0-9]]], r1
; CHECK-SOFTFP-FP16: vmov [[S0:s[0-9]]], r0
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S2]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vmul.f32 [[S0]], [[S0]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vmov r0, s0
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], r1
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vmul.f16 [[S0]], [[S2]], [[S0]]
; CHECK-SOFTFP-FULLFP16-NEXT: vmov.f16 r0, s0
; CHECK-HARDFP-VFP3: vmov r{{.}}, s0
; CHECK-HARDFP-VFP3: vmov{{.*}}, s1
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: vmul.f32
; CHECK-HARDFP-VFP3: bl __aeabi_f2h
; CHECK-HARDFP-VFP3: vmov s0, r0
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S2:s[0-9]]], s1
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S0:s[0-9]]], s0
; CHECK-HARDFP-FP16: vmul.f32 [[S0]], [[S0]], [[S2]]
; CHECK-HARDFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-HARDFP-FULLFP16: vmul.f16 s0, s0, s1
}
; 24. VNEG
define float @Neg(float %a.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = fsub half -0.000000e+00, %1
%3 = bitcast half %2 to i16
%tmp4.0.insert.ext = zext i16 %3 to i32
%4 = bitcast i32 %tmp4.0.insert.ext to float
ret float %4
; CHECK-LABEL: Neg:
; CHECK-HARDFP-FULLFP16: vneg.f16 s0, s0
}
; 25. VNMLA
define float @VNMLA(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%add = fmul half %1, %3
%add2 = fsub half -0.000000e+00, %add
%add3 = fsub half %add2, %5
%6 = bitcast half %add3 to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VNMLA:
; CHECK-HARDFP-FULLFP16: vnmla.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16: vmov.f32 s0, s2
}
; 26. VNMLS
define float @VNMLS(float %a.coerce, float %b.coerce, float %c.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%4 = bitcast float %c.coerce to i32
%tmp2.0.extract.trunc = trunc i32 %4 to i16
%5 = bitcast i16 %tmp2.0.extract.trunc to half
%add = fmul half %1, %3
%add2 = fsub half %add, %5
%6 = bitcast half %add2 to i16
%tmp4.0.insert.ext = zext i16 %6 to i32
%7 = bitcast i32 %tmp4.0.insert.ext to float
ret float %7
; CHECK-LABEL: VNMLS:
; CHECK-HARDFP-FULLFP16: vnmls.f16 s2, s0, s1
; CHECK-HARDFP-FULLFP16: vmov.f32 s0, s2
}
; 27. VNMUL
define float @NMul(float %a.coerce, float %b.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%add = fmul half %1, %3
%add2 = fsub half -0.0, %add
%4 = bitcast half %add2 to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: NMul:
; CHECK-HARDFP-FULLFP16: vnmul.f16 s0, s0, s1
}
; 35. VSELEQ
define half @select_cc1(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz oeq half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc1:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s6, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16: vseleq.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmoveq.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32: it eq
; CHECK-SOFTFP-FP16-T32: vmoveq.f32 s{{.}}, s{{.}}
}
; FIXME: more tests need to be added for VSELGE and VSELGT.
; That is, more combinations of immediate operands that can or can't
; be encoded as an FP16 immediate need to be added here.
;
; 36. VSELGE
define half @select_cc_ge1(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz oge half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_ge1:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s6, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselge.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovge.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it ge
; CHECK-SOFTFP-FP16-T32-NEXT: vmovge.f32 s{{.}}, s{{.}}
}
define half @select_cc_ge2(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz ole half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_ge2:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, s6
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselge.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovls.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it ls
; CHECK-SOFTFP-FP16-T32-NEXT: vmovls.f32 s{{.}}, s{{.}}
}
define half @select_cc_ge3(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz ugt half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_ge3:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, s6
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselge.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovhi.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it hi
; CHECK-SOFTFP-FP16-T32-NEXT: vmovhi.f32 s{{.}}, s{{.}}
}
define half @select_cc_ge4(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz ult half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_ge4:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s6, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselge.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovlt.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it lt
; CHECK-SOFTFP-FP16-T32-NEXT: vmovlt.f32 s{{.}}, s{{.}}
}
; 37. VSELGT
define half @select_cc_gt1(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz ogt half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_gt1:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s6, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselgt.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovgt.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it gt
; CHECK-SOFTFP-FP16-T32-NEXT: vmovgt.f32 s{{.}}, s{{.}}
}
define half @select_cc_gt2(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz uge half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_gt2:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, s6
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselgt.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovpl.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it pl
; CHECK-SOFTFP-FP16-T32-NEXT: vmovpl.f32 s{{.}}, s{{.}}
}
define half @select_cc_gt3(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz ule half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_gt3:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s6, s0
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselgt.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovle.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it le
; CHECK-SOFTFP-FP16-T32-NEXT: vmovle.f32 s{{.}}, s{{.}}
}
define half @select_cc_gt4(half* %a0) {
%1 = load half, half* %a0
%2 = fcmp nsz olt half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
ret half %3
; CHECK-LABEL: select_cc_gt4:
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, s6
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vselgt.f16 s0, s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-A32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-A32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32-NEXT: vmovmi.f32 s{{.}}, s{{.}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 s6, s0
; CHECK-SOFTFP-FP16-T32-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32-NEXT: it mi
; CHECK-SOFTFP-FP16-T32-NEXT: vmovmi.f32 s{{.}}, s{{.}}
}
; 38. VSELVS
define float @select_cc4(float %a.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = fcmp nsz ueq half %1, 0xH0001
%3 = select i1 %2, half 0xHC000, half 0xH0002
%4 = bitcast half %3 to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: select_cc4:
; CHECK-HARDFP-FULLFP16: vldr.16 [[S2:s[0-9]]], .LCPI{{.*}}
; CHECK-HARDFP-FULLFP16: vldr.16 [[S4:s[0-9]]], .LCPI{{.*}}
; CHECK-HARDFP-FULLFP16: vmov.f16 [[S6:s[0-9]]], #-2.000000e+00
; CHECK-HARDFP-FULLFP16: vcmp.f16 s0, [[S2]]
; CHECK-HARDFP-FULLFP16-NEXT: vmrs APSR_nzcv, fpscr
; CHECK-HARDFP-FULLFP16-NEXT: vseleq.f16 [[S0:s[0-9]]], [[S6]], [[S4]]
; CHECK-HARDFP-FULLFP16-NEXT: vselvs.f16 s0, [[S6]], [[S0]]
; CHECK-SOFTFP-FP16-A32: vmov [[S6:s[0-9]]], r0
; CHECK-SOFTFP-FP16-A32: vldr s0, .LCP{{.*}}
; CHECK-SOFTFP-FP16-A32: vcvtb.f32.f16 [[S6]], [[S6]]
; CHECK-SOFTFP-FP16-A32: vmov.f32 [[S2:s[0-9]]], #-2.000000e+00
; CHECK-SOFTFP-FP16-A32: vcmp.f32 [[S6]], s0
; CHECK-SOFTFP-FP16-A32: vldr [[S4:s[0-9]]], .LCPI{{.*}}
; CHECK-SOFTFP-FP16-A32: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-A32: vmoveq.f32 [[S4]], [[S2]]
; CHECK-SOFTFP-FP16-A32-NEXT: vmovvs.f32 [[S4]], [[S2]]
; CHECK-SOFTFP-FP16-A32-NEXT: vcvtb.f16.f32 s0, [[S4]]
; CHECK-SOFTFP-FP16-T32: vmov [[S6:s[0-9]]], r0
; CHECK-SOFTFP-FP16-T32: vldr s0, .LCP{{.*}}
; CHECK-SOFTFP-FP16-T32: vcvtb.f32.f16 [[S6]], [[S6]]
; CHECK-SOFTFP-FP16-T32: vldr [[S4:s[0-9]]], .LCPI{{.*}}
; CHECK-SOFTFP-FP16-T32: vcmp.f32 [[S6]], s0
; CHECK-SOFTFP-FP16-T32: vmov.f32 [[S2:s[0-9]]], #-2.000000e+00
; CHECK-SOFTFP-FP16-T32: vmrs APSR_nzcv, fpscr
; CHECK-SOFTFP-FP16-T32: it eq
; CHECK-SOFTFP-FP16-T32: vmoveq.f32 [[S4]], [[S2]]
; CHECK-SOFTFP-FP16-T32: it vs
; CHECK-SOFTFP-FP16-T32-NEXT: vmovvs.f32 [[S4]], [[S2]]
; CHECK-SOFTFP-FP16-T32-NEXT: vcvtb.f16.f32 s0, [[S4]]
}
; 40. VSUB
define float @Sub(float %a.coerce, float %b.coerce) {
entry:
%0 = bitcast float %a.coerce to i32
%tmp.0.extract.trunc = trunc i32 %0 to i16
%1 = bitcast i16 %tmp.0.extract.trunc to half
%2 = bitcast float %b.coerce to i32
%tmp1.0.extract.trunc = trunc i32 %2 to i16
%3 = bitcast i16 %tmp1.0.extract.trunc to half
%add = fsub half %1, %3
%4 = bitcast half %add to i16
%tmp4.0.insert.ext = zext i16 %4 to i32
%5 = bitcast i32 %tmp4.0.insert.ext to float
ret float %5
; CHECK-LABEL: Sub:
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_h2f
; CHECK-SOFT: bl __aeabi_fsub
; CHECK-SOFT: bl __aeabi_f2h
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: bl __aeabi_h2f
; CHECK-SOFTFP-VFP3: vsub.f32
; CHECK-SOFTFP-VFP3: bl __aeabi_f2h
; CHECK-SOFTFP-FP16: vmov [[S2:s[0-9]]], r1
; CHECK-SOFTFP-FP16: vmov [[S0:s[0-9]]], r0
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S2]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f32.f16 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vsub.f32 [[S0]], [[S0]], [[S2]]
; CHECK-SOFTFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-SOFTFP-FP16: vmov r0, s0
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], r1
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vsub.f16 [[S0]], [[S2]], [[S0]]
; CHECK-SOFTFP-FULLFP16-NEXT: vmov.f16 r0, s0
; CHECK-HARDFP-VFP3: vmov r{{.}}, s0
; CHECK-HARDFP-VFP3: vmov{{.*}}, s1
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: bl __aeabi_h2f
; CHECK-HARDFP-VFP3: vsub.f32
; CHECK-HARDFP-VFP3: bl __aeabi_f2h
; CHECK-HARDFP-VFP3: vmov s0, r0
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S2:s[0-9]]], s1
; CHECK-HARDFP-FP16: vcvtb.f32.f16 [[S0:s[0-9]]], s0
; CHECK-HARDFP-FP16: vsub.f32 [[S0]], [[S0]], [[S2]]
; CHECK-HARDFP-FP16: vcvtb.f16.f32 [[S0]], [[S0]]
; CHECK-HARDFP-FULLFP16: vsub.f16 s0, s0, s1
}
; Check for VSTRH with a FCONSTH, this checks that addressing mode
; AddrMode5FP16 is supported.
define i32 @ThumbAddrMode5FP16(i32 %A.coerce) {
entry:
%S = alloca half, align 2
%tmp.0.extract.trunc = trunc i32 %A.coerce to i16
%0 = bitcast i16 %tmp.0.extract.trunc to half
%S.0.S.0..sroa_cast = bitcast half* %S to i8*
store volatile half 0xH3C00, half* %S, align 2
%S.0.S.0. = load volatile half, half* %S, align 2
%add = fadd half %S.0.S.0., %0
%1 = bitcast half %add to i16
%tmp2.0.insert.ext = zext i16 %1 to i32
ret i32 %tmp2.0.insert.ext
; CHECK-LABEL: ThumbAddrMode5FP16
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0:s[0-9]]], #1.000000e+00
; CHECK-SOFTFP-FULLFP16: vstr.16 [[S0]], [sp, #{{.}}]
; CHECK-SOFTFP-FULLFP16: vmov.f16 [[S0_2:s[0-9]]], r0
; CHECK-SOFTFP-FULLFP16: vldr.16 [[S2:s[0-9]]], [sp, #{{.}}]
; CHECK-SOFTFP-FULLFP16: vadd.f16 s{{.}}, [[S2]], [[S0_2]]
}
; Test function calls to check store/load reg to/from stack
define i32 @fn1() {
entry:
%coerce = alloca half, align 2
%tmp2 = alloca i32, align 4
store half 0xH7C00, half* %coerce, align 2
%0 = load i32, i32* %tmp2, align 4
%call = call i32 bitcast (i32 (...)* @fn2 to i32 (i32)*)(i32 %0)
store half 0xH7C00, half* %coerce, align 2
%1 = load i32, i32* %tmp2, align 4
%call3 = call i32 bitcast (i32 (...)* @fn3 to i32 (i32)*)(i32 %1)
ret i32 %call3
; CHECK-SPILL-RELOAD-LABEL: fn1:
; CHECK-SPILL-RELOAD: vstr.16 s0, [sp, #{{.}}] @ 2-byte Spill
; CHECK-SPILL-RELOAD: bl fn2
; CHECK-SPILL-RELOAD-NEXT: vldr.16 s0, [sp, #{{.}}] @ 2-byte Reload
}
declare dso_local i32 @fn2(...)
declare dso_local i32 @fn3(...)
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