1 ; RUN: llc -mtriple=x86_64-linux -mcpu=atom < %s | FileCheck %s 2 3 declare i32 @llvm.bswap.i32(i32) nounwind readnone 4 declare i64 @llvm.bswap.i64(i64) nounwind readnone 5 6 define void @test1(i32* nocapture %x, i32 %y) nounwind { 7 %bswap = call i32 @llvm.bswap.i32(i32 %y) 8 store i32 %bswap, i32* %x, align 4 9 ret void 10 ; CHECK: test1: 11 ; CHECK: movbel %esi, (%rdi) 12 } 13 14 define i32 @test2(i32* %x) nounwind { 15 %load = load i32* %x, align 4 16 %bswap = call i32 @llvm.bswap.i32(i32 %load) 17 ret i32 %bswap 18 ; CHECK: test2: 19 ; CHECK: movbel (%rdi), %eax 20 } 21 22 define void @test3(i64* %x, i64 %y) nounwind { 23 %bswap = call i64 @llvm.bswap.i64(i64 %y) 24 store i64 %bswap, i64* %x, align 8 25 ret void 26 ; CHECK: test3: 27 ; CHECK: movbeq %rsi, (%rdi) 28 } 29 30 define i64 @test4(i64* %x) nounwind { 31 %load = load i64* %x, align 8 32 %bswap = call i64 @llvm.bswap.i64(i64 %load) 33 ret i64 %bswap 34 ; CHECK: test4: 35 ; CHECK: movbeq (%rdi), %rax 36 } 37
