55 lines
1.3 KiB
LLVM
55 lines
1.3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple riscv32 -mattr=+m,+experimental-v < %s \
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; RUN: | FileCheck %s
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define i32 @vscale_zero() nounwind {
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; CHECK-LABEL: vscale_zero:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mv a0, zero
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; CHECK-NEXT: ret
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entry:
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%0 = call i32 @llvm.vscale.i32()
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%1 = mul i32 %0, 0
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ret i32 %1
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}
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define i32 @vscale_one() nounwind {
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; CHECK-LABEL: vscale_one:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: csrr a0, vlenb
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; CHECK-NEXT: srli a0, a0, 3
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; CHECK-NEXT: ret
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entry:
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%0 = call i32 @llvm.vscale.i32()
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%1 = mul i32 %0, 1
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ret i32 %1
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}
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define i32 @vscale_uimmpow2xlen() nounwind {
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; CHECK-LABEL: vscale_uimmpow2xlen:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: csrr a0, vlenb
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; CHECK-NEXT: slli a0, a0, 3
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; CHECK-NEXT: ret
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entry:
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%0 = call i32 @llvm.vscale.i32()
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%1 = mul i32 %0, 64
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ret i32 %1
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}
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define i32 @vscale_non_pow2() nounwind {
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; CHECK-LABEL: vscale_non_pow2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: csrr a0, vlenb
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; CHECK-NEXT: srli a0, a0, 3
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; CHECK-NEXT: addi a1, zero, 24
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; CHECK-NEXT: mul a0, a0, a1
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; CHECK-NEXT: ret
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entry:
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%0 = call i32 @llvm.vscale.i32()
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%1 = mul i32 %0, 24
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ret i32 %1
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}
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declare i32 @llvm.vscale.i32()
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