Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/break-anti-dependencies.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
---|---|
date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | afa8332a0e37 |
line wrap: on
line source
; Without list-burr scheduling we may not see the difference in codegen here. ; Use a subtarget that has post-RA scheduling enabled because the anti-dependency ; breaker requires liveness information to be kept. ; RUN: llc < %s -march=x86-64 -mcpu=atom -enable-misched=false -post-RA-scheduler -pre-RA-sched=list-burr -break-anti-dependencies=none > %t ; RUN: grep "%xmm0" %t | count 14 ; RUN: not grep "%xmm1" %t ; RUN: llc < %s -march=x86-64 -mcpu=atom -post-RA-scheduler -break-anti-dependencies=critical > %t ; RUN: grep "%xmm0" %t | count 7 ; RUN: grep "%xmm1" %t | count 7 define void @goo(double* %r, double* %p, double* %q) nounwind { entry: %0 = load double* %p, align 8 %1 = fadd double %0, 1.100000e+00 %2 = fmul double %1, 1.200000e+00 %3 = fadd double %2, 1.300000e+00 %4 = fmul double %3, 1.400000e+00 %5 = fadd double %4, 1.500000e+00 %6 = fptosi double %5 to i32 %7 = load double* %r, align 8 %8 = fadd double %7, 7.100000e+00 %9 = fmul double %8, 7.200000e+00 %10 = fadd double %9, 7.300000e+00 %11 = fmul double %10, 7.400000e+00 %12 = fadd double %11, 7.500000e+00 %13 = fptosi double %12 to i32 %14 = icmp slt i32 %6, %13 br i1 %14, label %bb, label %return bb: store double 9.300000e+00, double* %q, align 8 ret void return: ret void }