Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/x86-64-and-mask.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 | 60c9769439b8 |
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; RUN: llc -mcpu=corei7 < %s | FileCheck %s target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" target triple = "x86_64-apple-darwin8" ; This should be a single mov, not a load of immediate + andq. ; CHECK-LABEL: test: ; CHECK: movl %edi, %eax define i64 @test(i64 %x) nounwind { entry: %tmp123 = and i64 %x, 4294967295 ; <i64> [#uses=1] ret i64 %tmp123 } ; This copy can't be coalesced away because it needs the implicit zero-extend. ; CHECK-LABEL: bbb: ; CHECK: movl %edi, %edi define void @bbb(i64 %x) nounwind { %t = and i64 %x, 4294967295 call void @foo(i64 %t) ret void } ; This should use a 32-bit and with implicit zero-extension, not a 64-bit and ; with a separate mov to materialize the mask. ; rdar://7527390 ; CHECK-LABEL: ccc: ; CHECK: andl $-1048593, %edi declare void @foo(i64 %x) nounwind define void @ccc(i64 %x) nounwind { %t = and i64 %x, 4293918703 call void @foo(i64 %t) ret void } ; This requires a mov and a 64-bit and. ; CHECK-LABEL: ddd: ; CHECK: movabsq $4294967296, %r ; CHECK: andq %r{{..}}, %r{{..}} define void @ddd(i64 %x) nounwind { %t = and i64 %x, 4294967296 call void @foo(i64 %t) ret void }