Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/lsr-nonaffine.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 803732b1fca8 |
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; RUN: llc -asm-verbose=false -march=x86-64 -mtriple=x86_64-apple-darwin -o - < %s | FileCheck %s ; LSR should leave non-affine expressions alone because it currently ; doesn't know how to do anything with them, and when it tries, it ; gets SCEVExpander's current expansion for them, which is suboptimal. ; CHECK: xorl %eax, %eax ; CHECK-NEXT: align ; CHECK-NEXT: BB0_1: ; CHECK-NEXT: movq %rax, (%rdx) ; CHECK-NEXT: addq %rsi, %rax ; CHECK-NEXT: cmpq %rdi, %rax ; CHECK-NEXT: jl ; CHECK-NEXT: imulq %rax, %rax ; CHECK-NEXT: ret define i64 @foo(i64 %n, i64 %s, i64* %p) nounwind { entry: br label %loop loop: %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] store volatile i64 %i, i64* %p %i.next = add i64 %i, %s %c = icmp slt i64 %i.next, %n br i1 %c, label %loop, label %exit exit: %mul = mul i64 %i.next, %i.next ret i64 %mul }