Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/AArch64/mul-lohi.ll @ 128:c347d3398279 default tip
fix
author | mir3636 |
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date | Wed, 06 Dec 2017 14:37:17 +0900 |
parents | 803732b1fca8 |
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; RUN: llc -mtriple=arm64-apple-ios7.0 -mcpu=cyclone %s -o - | FileCheck %s ; RUN: llc -mtriple=aarch64_be-linux-gnu -mcpu=cyclone %s -o - | FileCheck --check-prefix=CHECK-BE %s define i128 @test_128bitmul(i128 %lhs, i128 %rhs) { ; CHECK-LABEL: test_128bitmul: ; CHECK: umulh [[HI:x[0-9]+]], x0, x2 ; CHECK: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]] ; CHECK-DAG: madd x1, x1, x2, [[TEMP1]] ; CHECK-DAG: mul x0, x0, x2 ; CHECK-NEXT: ret ; CHECK-BE-LABEL: test_128bitmul: ; CHECK-BE: umulh [[HI:x[0-9]+]], x1, x3 ; CHECK-BE: madd [[TEMP1:x[0-9]+]], x1, x2, [[HI]] ; CHECK-BE-DAG: madd x0, x0, x3, [[TEMP1]] ; CHECK-BE-DAG: mul x1, x1, x3 ; CHECK-BE-NEXT: ret %prod = mul i128 %lhs, %rhs ret i128 %prod } ; The machine combiner should create madd instructions when ; optimizing for size because that's smaller than mul + add. define i128 @test_128bitmul_optsize(i128 %lhs, i128 %rhs) optsize { ; CHECK-LABEL: test_128bitmul_optsize: ; CHECK: umulh [[HI:x[0-9]+]], x0, x2 ; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]] ; CHECK-DAG: madd x1, x1, x2, [[TEMP1]] ; CHECK-DAG: mul x0, x0, x2 ; CHECK-NEXT: ret %prod = mul i128 %lhs, %rhs ret i128 %prod } define i128 @test_128bitmul_minsize(i128 %lhs, i128 %rhs) minsize { ; CHECK-LABEL: test_128bitmul_minsize: ; CHECK: umulh [[HI:x[0-9]+]], x0, x2 ; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]] ; CHECK-DAG: madd x1, x1, x2, [[TEMP1]] ; CHECK-DAG: mul x0, x0, x2 ; CHECK-NEXT: ret %prod = mul i128 %lhs, %rhs ret i128 %prod }