77 lines
2.1 KiB
LLVM
77 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s
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declare i4 @llvm.usub.sat.i4(i4, i4)
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declare i8 @llvm.usub.sat.i8(i8, i8)
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declare i16 @llvm.usub.sat.i16(i16, i16)
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declare i32 @llvm.usub.sat.i32(i32, i32)
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declare i64 @llvm.usub.sat.i64(i64, i64)
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define i32 @func32(i32 %x, i32 %y, i32 %z) nounwind {
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; CHECK-LABEL: func32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mul w8, w1, w2
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; CHECK-NEXT: subs w8, w0, w8
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; CHECK-NEXT: csel w0, wzr, w8, lo
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; CHECK-NEXT: ret
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%a = mul i32 %y, %z
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%tmp = call i32 @llvm.usub.sat.i32(i32 %x, i32 %a)
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ret i32 %tmp
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}
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define i64 @func64(i64 %x, i64 %y, i64 %z) nounwind {
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; CHECK-LABEL: func64:
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; CHECK: // %bb.0:
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; CHECK-NEXT: subs x8, x0, x2
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; CHECK-NEXT: csel x0, xzr, x8, lo
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; CHECK-NEXT: ret
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%a = mul i64 %y, %z
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%tmp = call i64 @llvm.usub.sat.i64(i64 %x, i64 %z)
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ret i64 %tmp
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}
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define i16 @func16(i16 %x, i16 %y, i16 %z) nounwind {
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; CHECK-LABEL: func16:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mul w9, w1, w2
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; CHECK-NEXT: and w8, w0, #0xffff
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; CHECK-NEXT: and w9, w9, #0xffff
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; CHECK-NEXT: cmp w8, w9
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; CHECK-NEXT: csel w8, w8, w9, hi
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; CHECK-NEXT: sub w0, w8, w9
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; CHECK-NEXT: ret
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%a = mul i16 %y, %z
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%tmp = call i16 @llvm.usub.sat.i16(i16 %x, i16 %a)
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ret i16 %tmp
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}
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define i8 @func8(i8 %x, i8 %y, i8 %z) nounwind {
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; CHECK-LABEL: func8:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mul w9, w1, w2
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; CHECK-NEXT: and w8, w0, #0xff
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; CHECK-NEXT: and w9, w9, #0xff
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; CHECK-NEXT: cmp w8, w9
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; CHECK-NEXT: csel w8, w8, w9, hi
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; CHECK-NEXT: sub w0, w8, w9
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; CHECK-NEXT: ret
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%a = mul i8 %y, %z
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%tmp = call i8 @llvm.usub.sat.i8(i8 %x, i8 %a)
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ret i8 %tmp
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}
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define i4 @func4(i4 %x, i4 %y, i4 %z) nounwind {
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; CHECK-LABEL: func4:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mul w9, w1, w2
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; CHECK-NEXT: and w8, w0, #0xf
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; CHECK-NEXT: and w9, w9, #0xf
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; CHECK-NEXT: cmp w8, w9
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; CHECK-NEXT: csel w8, w8, w9, hi
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; CHECK-NEXT: sub w0, w8, w9
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; CHECK-NEXT: ret
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%a = mul i4 %y, %z
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%tmp = call i4 @llvm.usub.sat.i4(i4 %x, i4 %a)
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ret i4 %tmp
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}
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