32 lines
940 B
LLVM
32 lines
940 B
LLVM
; RUN: llc -mtriple=hexagon < %s | FileCheck %s
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; This patch corrects the order of operands in the pattern that lowers funnel
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; shift-left.
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; CHECK: r[[R17:[0-9]+]]:[[R16:[0-9]+]] = combine
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; CHECK: call parity
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; CHECK: r[[R1:[0-9]+]]:[[R0:[0-9]+]] = asl(r[[R1]]:[[R0]],#63)
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; CHECK: r[[R1]]:[[R0]] |= lsr(r[[R17]]:[[R16]],#1)
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target triple = "hexagon-unknown-unknown-elf"
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define dso_local i64 @fshl(i64 %x, i64 %y) {
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entry:
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%x.addr = alloca i64, align 8
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%y.addr = alloca i64, align 8
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store i64 %x, i64* %x.addr, align 8
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store i64 %y, i64* %y.addr, align 8
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%0 = load i64, i64* %x.addr, align 8
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%shr = lshr i64 %0, 1
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%1 = load i64, i64* %x.addr, align 8
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%2 = load i64, i64* %y.addr, align 8
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%call = call i64 @parity(i64 %1, i64 %2)
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%shl = shl i64 %call, 63
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%or = or i64 %shr, %shl
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store i64 %or, i64* %x.addr, align 8
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%3 = load i64, i64* %x.addr, align 8
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ret i64 %3
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}
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declare dso_local i64 @parity(i64, i64)
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