derek.holloway
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101 lines
2.9 KiB
LLVM
101 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb \
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; RUN: -verify-machineinstrs < %s | \
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; RUN: FileCheck --check-prefixes=CHECK-RV32 %s
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; RUN: llc -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb \
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; RUN: -verify-machineinstrs < %s | \
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; RUN: FileCheck --check-prefixes=CHECK-RV64 %s
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; Bitcast between i64 and v8i8/v4i16/v2i32 on RV32 must be a register-level
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; no-op so that paired-register arithmetic patterns match after the bitcast.
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define i64 @bitcast_roundtrip_v8i8(i64 %a) {
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; CHECK-RV32-LABEL: bitcast_roundtrip_v8i8:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: bitcast_roundtrip_v8i8:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: ret
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%v = bitcast i64 %a to <8 x i8>
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%r = bitcast <8 x i8> %v to i64
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ret i64 %r
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}
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define i64 @bitcast_roundtrip_v4i16(i64 %a) {
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; CHECK-RV32-LABEL: bitcast_roundtrip_v4i16:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: bitcast_roundtrip_v4i16:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: ret
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%v = bitcast i64 %a to <4 x i16>
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%r = bitcast <4 x i16> %v to i64
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ret i64 %r
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}
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define i64 @bitcast_roundtrip_v2i32(i64 %a) {
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; CHECK-RV32-LABEL: bitcast_roundtrip_v2i32:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: bitcast_roundtrip_v2i32:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: ret
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%v = bitcast i64 %a to <2 x i32>
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%r = bitcast <2 x i32> %v to i64
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ret i64 %r
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}
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define i64 @add_v8i8_via_bitcast(i64 %a, i64 %b) {
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; CHECK-RV32-LABEL: add_v8i8_via_bitcast:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: padd.db a0, a0, a2
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: add_v8i8_via_bitcast:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: padd.b a0, a0, a1
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; CHECK-RV64-NEXT: ret
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%va = bitcast i64 %a to <8 x i8>
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%vb = bitcast i64 %b to <8 x i8>
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%r = add <8 x i8> %va, %vb
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%ret = bitcast <8 x i8> %r to i64
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ret i64 %ret
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}
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define i64 @add_v4i16_via_bitcast(i64 %a, i64 %b) {
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; CHECK-RV32-LABEL: add_v4i16_via_bitcast:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: padd.dh a0, a0, a2
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: add_v4i16_via_bitcast:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: padd.h a0, a0, a1
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; CHECK-RV64-NEXT: ret
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%va = bitcast i64 %a to <4 x i16>
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%vb = bitcast i64 %b to <4 x i16>
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%r = add <4 x i16> %va, %vb
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%ret = bitcast <4 x i16> %r to i64
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ret i64 %ret
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}
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define i64 @add_v2i32_via_bitcast(i64 %a, i64 %b) {
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; CHECK-RV32-LABEL: add_v2i32_via_bitcast:
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; CHECK-RV32: # %bb.0:
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; CHECK-RV32-NEXT: padd.dw a0, a0, a2
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; CHECK-RV32-NEXT: ret
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;
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; CHECK-RV64-LABEL: add_v2i32_via_bitcast:
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; CHECK-RV64: # %bb.0:
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; CHECK-RV64-NEXT: padd.w a0, a0, a1
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; CHECK-RV64-NEXT: ret
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%va = bitcast i64 %a to <2 x i32>
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%vb = bitcast i64 %b to <2 x i32>
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%r = add <2 x i32> %va, %vb
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%ret = bitcast <2 x i32> %r to i64
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ret i64 %ret
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}
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