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58d3335cb9
This increases the number of opportunites we have for folding. With the previous implementation we were unable to fold into any instructions other than the first when multiple instructions were selected from a single SDNode. Reviewed-by: Vincent Lejeune <vljn at ovi.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186919 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.5 KiB
LLVM
53 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=R600-CHECK %s
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; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck --check-prefix=SI-CHECK %s
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; BFI_INT Definition pattern from ISA docs
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; (y & x) | (z & ~x)
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;
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; R600-CHECK: @bfi_def
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; R600-CHECK: BFI_INT
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; SI-CHECK: @bfi_def
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; SI-CHECK: V_BFI_B32
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define void @bfi_def(i32 addrspace(1)* %out, i32 %x, i32 %y, i32 %z) {
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entry:
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%0 = xor i32 %x, -1
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%1 = and i32 %z, %0
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%2 = and i32 %y, %x
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%3 = or i32 %1, %2
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store i32 %3, i32 addrspace(1)* %out
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ret void
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}
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; SHA-256 Ch function
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; z ^ (x & (y ^ z))
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; R600-CHECK: @bfi_sha256_ch
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; R600-CHECK: BFI_INT
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; SI-CHECK: @bfi_sha256_ch
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; SI-CHECK: V_BFI_B32
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define void @bfi_sha256_ch(i32 addrspace(1)* %out, i32 %x, i32 %y, i32 %z) {
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entry:
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%0 = xor i32 %y, %z
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%1 = and i32 %x, %0
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%2 = xor i32 %z, %1
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store i32 %2, i32 addrspace(1)* %out
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ret void
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}
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; SHA-256 Ma function
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; ((x & z) | (y & (x | z)))
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; R600-CHECK: @bfi_sha256_ma
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; R600-CHECK: XOR_INT * [[DST:T[0-9]+\.[XYZW]]], KC0[2].Z, KC0[2].W
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; R600-CHECK: BFI_INT * {{T[0-9]+\.[XYZW]}}, {{[[DST]]|PV\.[XYZW]}}, KC0[3].X, KC0[2].W
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; SI-CHECK: V_XOR_B32_e64 [[DST:VGPR[0-9]+]], {{[SV]GPR[0-9]+, [SV]GPR[0-9]+}}
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; SI-CHECK: V_BFI_B32 {{VGPR[0-9]+}}, [[DST]], {{[SV]GPR[0-9]+, [SV]GPR[0-9]+}}
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define void @bfi_sha256_ma(i32 addrspace(1)* %out, i32 %x, i32 %y, i32 %z) {
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entry:
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%0 = and i32 %x, %z
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%1 = or i32 %x, %z
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%2 = and i32 %y, %1
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%3 = or i32 %0, %2
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store i32 %3, i32 addrspace(1)* %out
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ret void
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}
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