Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/ARM/2015-01-21-thumbv4t-ldstr-opt.ll @ 100:7d135dc70f03
LLVM 3.9
author | Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp> |
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date | Tue, 26 Jan 2016 22:53:40 +0900 |
parents | afa8332a0e37 |
children |
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; RUN: llc -mtriple=thumbv4t-none--eabi < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V4T ; RUN: llc -mtriple=thumbv6m-none--eabi < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V6M ; CHECK-LABEL: test1 define i32 @test1(i32* %p) { ; Offsets less than 8 can be generated in a single add ; CHECK: adds [[NEWBASE:r[0-9]]], r0, #4 %1 = getelementptr inbounds i32, i32* %p, i32 1 %2 = getelementptr inbounds i32, i32* %p, i32 2 %3 = getelementptr inbounds i32, i32* %p, i32 3 %4 = getelementptr inbounds i32, i32* %p, i32 4 ; CHECK-NEXT: ldm [[NEWBASE]], %5 = load i32, i32* %1, align 4 %6 = load i32, i32* %2, align 4 %7 = load i32, i32* %3, align 4 %8 = load i32, i32* %4, align 4 %9 = add nsw i32 %5, %6 %10 = add nsw i32 %9, %7 %11 = add nsw i32 %10, %8 ret i32 %11 } ; CHECK-LABEL: test2 define i32 @test2(i32* %p) { ; Offsets >=8 require a mov and an add ; CHECK-V4T: movs [[NEWBASE:r[0-9]]], r0 ; CHECK-V6M: mov [[NEWBASE:r[0-9]]], r0 ; CHECK-NEXT: adds [[NEWBASE]], #8 %1 = getelementptr inbounds i32, i32* %p, i32 2 %2 = getelementptr inbounds i32, i32* %p, i32 3 %3 = getelementptr inbounds i32, i32* %p, i32 4 %4 = getelementptr inbounds i32, i32* %p, i32 5 ; CHECK-NEXT: ldm [[NEWBASE]], %5 = load i32, i32* %1, align 4 %6 = load i32, i32* %2, align 4 %7 = load i32, i32* %3, align 4 %8 = load i32, i32* %4, align 4 %9 = add nsw i32 %5, %6 %10 = add nsw i32 %9, %7 %11 = add nsw i32 %10, %8 ret i32 %11 }