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[LoongArch][NFC] Pre-commit tests for sitofp(load) combine #165521

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[LoongArch][NFC] Pre-commit tests for sitofp(load) combine #165521

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89 changes: 89 additions & 0 deletions llvm/test/CodeGen/LoongArch/load-itofp-combine.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc --mtriple=loongarch32 --mattr=+f,-d < %s | FileCheck %s --check-prefix=LA32F
; RUN: llc --mtriple=loongarch32 --mattr=+d < %s | FileCheck %s --check-prefix=LA32D
; RUN: llc --mtriple=loongarch64 --mattr=+f,-d < %s | FileCheck %s --check-prefix=LA64F
; RUN: llc --mtriple=loongarch64 --mattr=+d < %s | FileCheck %s --check-prefix=LA64D

define float @load_sitofp_f32(ptr %src) nounwind {
; LA32F-LABEL: load_sitofp_f32:
; LA32F: # %bb.0:
; LA32F-NEXT: ld.w $a0, $a0, 0
; LA32F-NEXT: movgr2fr.w $fa0, $a0
; LA32F-NEXT: ffint.s.w $fa0, $fa0
; LA32F-NEXT: ret
;
; LA32D-LABEL: load_sitofp_f32:
; LA32D: # %bb.0:
; LA32D-NEXT: ld.w $a0, $a0, 0
; LA32D-NEXT: movgr2fr.w $fa0, $a0
; LA32D-NEXT: ffint.s.w $fa0, $fa0
; LA32D-NEXT: ret
;
; LA64F-LABEL: load_sitofp_f32:
; LA64F: # %bb.0:
; LA64F-NEXT: addi.d $sp, $sp, -16
; LA64F-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64F-NEXT: ld.w $a0, $a0, 0
; LA64F-NEXT: pcaddu18i $ra, %call36(__floatdisf)
; LA64F-NEXT: jirl $ra, $ra, 0
; LA64F-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64F-NEXT: addi.d $sp, $sp, 16
; LA64F-NEXT: ret
;
; LA64D-LABEL: load_sitofp_f32:
; LA64D: # %bb.0:
; LA64D-NEXT: ld.w $a0, $a0, 0
; LA64D-NEXT: movgr2fr.w $fa0, $a0
; LA64D-NEXT: ffint.s.w $fa0, $fa0
; LA64D-NEXT: ret
%1 = load i32, ptr %src
%2 = sitofp i32 %1 to float
ret float %2
}

define double @load_sitofp_f64(ptr %src) nounwind {
; LA32F-LABEL: load_sitofp_f64:
; LA32F: # %bb.0:
; LA32F-NEXT: addi.w $sp, $sp, -16
; LA32F-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32F-NEXT: ld.w $a2, $a0, 0
; LA32F-NEXT: ld.w $a1, $a0, 4
; LA32F-NEXT: move $a0, $a2
; LA32F-NEXT: bl __floatdidf
; LA32F-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32F-NEXT: addi.w $sp, $sp, 16
; LA32F-NEXT: ret
;
; LA32D-LABEL: load_sitofp_f64:
; LA32D: # %bb.0:
; LA32D-NEXT: addi.w $sp, $sp, -16
; LA32D-NEXT: st.w $ra, $sp, 12 # 4-byte Folded Spill
; LA32D-NEXT: ld.w $a2, $a0, 0
; LA32D-NEXT: ld.w $a1, $a0, 4
; LA32D-NEXT: move $a0, $a2
; LA32D-NEXT: bl __floatdidf
; LA32D-NEXT: ld.w $ra, $sp, 12 # 4-byte Folded Reload
; LA32D-NEXT: addi.w $sp, $sp, 16
; LA32D-NEXT: ret
;
; LA64F-LABEL: load_sitofp_f64:
; LA64F: # %bb.0:
; LA64F-NEXT: addi.d $sp, $sp, -16
; LA64F-NEXT: st.d $ra, $sp, 8 # 8-byte Folded Spill
; LA64F-NEXT: ld.d $a0, $a0, 0
; LA64F-NEXT: pcaddu18i $ra, %call36(__floatdidf)
; LA64F-NEXT: jirl $ra, $ra, 0
; LA64F-NEXT: ld.d $ra, $sp, 8 # 8-byte Folded Reload
; LA64F-NEXT: addi.d $sp, $sp, 16
; LA64F-NEXT: ret
;
; LA64D-LABEL: load_sitofp_f64:
; LA64D: # %bb.0:
; LA64D-NEXT: ld.d $a0, $a0, 0
; LA64D-NEXT: movgr2fr.d $fa0, $a0
; LA64D-NEXT: ffint.d.l $fa0, $fa0
; LA64D-NEXT: ret
%1 = load i64, ptr %src
%2 = sitofp i64 %1 to double
ret double %2
}