Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/isel-optnone.ll @ 95:afa8332a0e37
LLVM 3.8
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
---|---|
date | Tue, 13 Oct 2015 17:48:58 +0900 |
parents | 95c75e76d11b |
children | 803732b1fca8 |
line wrap: on
line source
; RUN: llc -O2 -march=x86 < %s | FileCheck %s define i32* @fooOptnone(i32* %p, i32* %q, i32** %z) #0 { entry: %r = load i32, i32* %p %s = load i32, i32* %q %y = load i32*, i32** %z %t0 = add i32 %r, %s %t1 = add i32 %t0, 1 %t2 = getelementptr i32, i32* %y, i32 1 %t3 = getelementptr i32, i32* %t2, i32 %t1 ret i32* %t3 ; 'optnone' should use fast-isel which will not produce 'lea'. ; CHECK-LABEL: fooOptnone: ; CHECK-NOT: lea ; CHECK: ret } define i32* @fooNormal(i32* %p, i32* %q, i32** %z) #1 { entry: %r = load i32, i32* %p %s = load i32, i32* %q %y = load i32*, i32** %z %t0 = add i32 %r, %s %t1 = add i32 %t0, 1 %t2 = getelementptr i32, i32* %y, i32 1 %t3 = getelementptr i32, i32* %t2, i32 %t1 ret i32* %t3 ; Normal ISel will produce 'lea'. ; CHECK-LABEL: fooNormal: ; CHECK: lea ; CHECK: ret } attributes #0 = { nounwind optnone noinline } attributes #1 = { nounwind }