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55c03d9d7b
If SETUNE isn't legal, UO can use the NOT of the SETO expansion. Removes some complex isel patterns. Most of the test changes are from using XORI instead of SEQZ. Differential Revision: https://reviews.llvm.org/D92008
36 lines
1.1 KiB
LLVM
36 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -mattr=+f -target-abi ilp32f -verify-machineinstrs \
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; RUN: < %s | FileCheck -check-prefix=RV32IF %s
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; RUN: llc -mtriple=riscv64 -mattr=+f -target-abi lp64f -verify-machineinstrs \
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; RUN: < %s | FileCheck -check-prefix=RV64IF %s
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define zeroext i1 @float_is_nan(float %a) nounwind {
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; RV32IF-LABEL: float_is_nan:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: feq.s a0, fa0, fa0
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; RV32IF-NEXT: xori a0, a0, 1
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: float_is_nan:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: feq.s a0, fa0, fa0
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; RV64IF-NEXT: xori a0, a0, 1
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; RV64IF-NEXT: ret
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%1 = fcmp uno float %a, 0.000000e+00
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ret i1 %1
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}
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define zeroext i1 @float_not_nan(float %a) nounwind {
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; RV32IF-LABEL: float_not_nan:
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; RV32IF: # %bb.0:
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; RV32IF-NEXT: feq.s a0, fa0, fa0
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; RV32IF-NEXT: ret
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;
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; RV64IF-LABEL: float_not_nan:
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; RV64IF: # %bb.0:
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; RV64IF-NEXT: feq.s a0, fa0, fa0
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; RV64IF-NEXT: ret
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%1 = fcmp ord float %a, 0.000000e+00
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ret i1 %1
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}
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