llvm-6502/test/CodeGen/ARM/bswap16.ll

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; RUN: llc -mtriple=arm-darwin -mattr=v6 < %s | FileCheck %s
; RUN: llc -mtriple=thumb-darwin -mattr=v6 < %s | FileCheck %s
define void @test1(i16* nocapture %data) {
entry:
%0 = load i16* %data, align 2
%1 = tail call i16 @llvm.bswap.i16(i16 %0)
store i16 %1, i16* %data, align 2
ret void
; CHECK-LABEL: test1:
; CHECK: ldrh r[[R1:[0-9]+]], [r0]
; CHECK: rev16 r[[R1]], r[[R1]]
; CHECK: strh r[[R1]], [r0]
}
define void @test2(i16* nocapture %data, i16 zeroext %in) {
entry:
%0 = tail call i16 @llvm.bswap.i16(i16 %in)
store i16 %0, i16* %data, align 2
ret void
; CHECK-LABEL: test2:
; CHECK: rev16 r[[R1:[0-9]+]], r1
; CHECK: strh r[[R1]], [r0]
}
define i16 @test3(i16* nocapture %data) {
entry:
%0 = load i16* %data, align 2
%1 = tail call i16 @llvm.bswap.i16(i16 %0)
ret i16 %1
; CHECK-LABEL: test3:
; CHECK: ldrh r[[R0:[0-9]+]], [r0]
; CHECK: rev16 r[[R0]], r0
}
declare i16 @llvm.bswap.i16(i16)