derek.holloway
7502bf64a4
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121 lines
3.8 KiB
LLVM
121 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefixes=CHECK,RV32I %s
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; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefixes=CHECK,RV64I %s
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define i32 @fold_urem_constants(i32 %v0) nounwind {
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; RV32I-LABEL: fold_urem_constants:
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; RV32I: # %bb.0:
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; RV32I-NEXT: li a1, 5
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; RV32I-NEXT: tail __umodsi3
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;
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; RV64I-LABEL: fold_urem_constants:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: slli a0, a0, 32
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; RV64I-NEXT: srli a0, a0, 32
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; RV64I-NEXT: li a1, 5
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%v1 = urem i32 %v0, 25
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%v2 = urem i32 %v1, 5
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ret i32 %v2
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}
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define i32 @dont_fold_urem_constants(i32 %v0) nounwind {
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; RV32I-LABEL: dont_fold_urem_constants:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a1, 25
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; RV32I-NEXT: call __umodsi3
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; RV32I-NEXT: li a1, 3
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: tail __umodsi3
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;
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; RV64I-LABEL: dont_fold_urem_constants:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: slli a0, a0, 32
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; RV64I-NEXT: srli a0, a0, 32
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; RV64I-NEXT: li a1, 25
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: li a1, 3
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%v1 = urem i32 %v0, 25
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%v2 = urem i32 %v1, 3
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ret i32 %v2
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}
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define i32 @dont_fold_urem_srem_mixed_constants(i32 %v0) nounwind {
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; RV32I-LABEL: dont_fold_urem_srem_mixed_constants:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a1, 25
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; RV32I-NEXT: call __umodsi3
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; RV32I-NEXT: li a1, 3
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: tail __umodsi3
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;
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; RV64I-LABEL: dont_fold_urem_srem_mixed_constants:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: slli a0, a0, 32
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; RV64I-NEXT: srli a0, a0, 32
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; RV64I-NEXT: li a1, 25
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: li a1, 3
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%v1 = urem i32 %v0, 25
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%v2 = srem i32 %v1, 3
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ret i32 %v2
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}
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define i32 @dont_fold_srem_urem_mixed_constants(i32 %v0) nounwind {
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; RV32I-LABEL: dont_fold_srem_urem_mixed_constants:
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; RV32I: # %bb.0:
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; RV32I-NEXT: addi sp, sp, -16
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; RV32I-NEXT: sw ra, 12(sp) # 4-byte Folded Spill
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; RV32I-NEXT: li a1, 25
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; RV32I-NEXT: call __modsi3
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; RV32I-NEXT: li a1, 3
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; RV32I-NEXT: lw ra, 12(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 16
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; RV32I-NEXT: tail __umodsi3
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;
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; RV64I-LABEL: dont_fold_srem_urem_mixed_constants:
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; RV64I: # %bb.0:
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; RV64I-NEXT: addi sp, sp, -16
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; RV64I-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; RV64I-NEXT: sext.w a0, a0
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; RV64I-NEXT: li a1, 25
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; RV64I-NEXT: call __moddi3
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; RV64I-NEXT: slli a0, a0, 32
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; RV64I-NEXT: srli a0, a0, 32
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; RV64I-NEXT: li a1, 3
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; RV64I-NEXT: call __umoddi3
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; RV64I-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; RV64I-NEXT: addi sp, sp, 16
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; RV64I-NEXT: ret
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%v1 = srem i32 %v0, 25
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%v2 = urem i32 %v1, 3
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ret i32 %v2
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}
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;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
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; CHECK: {{.*}}
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