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llvm-project/llvm/test/CodeGen/X86/lock-inst-encoding.ll

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X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler. llvm-svn: 112250
2010-08-27 09:30:14 +08:00
; RUN: llc -O0 --show-mc-encoding < %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-n8:16:32:64"
target triple = "x86_64-apple-darwin10.0.0"
; CHECK: f0:
relax this test to just check that the lock prefix is encoded properly, and to not rely on the register allocator's arbitrary operand choices. llvm-svn: 129690
2011-04-18 14:15:35 +08:00
; CHECK: addq %{{.*}}, ({{.*}}){{.*}}encoding: [0xf0,
X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler. llvm-svn: 112250
2010-08-27 09:30:14 +08:00
; CHECK: ret
1. merge fast-isel-shift-imm.ll into fast-isel-x86-64.ll 2. implement rdar://9289501 - fast isel should fold trivial multiplies to shifts 3. teach tblgen to handle shift immediates that are different sizes than the shifted operands, eliminating some code from the X86 fast isel backend. 4. Have FastISel::SelectBinaryOp use (the poorly named) FastEmit_ri_ function instead of FastEmit_ri to simplify code. llvm-svn: 129666
2011-04-18 04:23:29 +08:00
define void @f0(i64* %a0) nounwind {
X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler. llvm-svn: 112250
2010-08-27 09:30:14 +08:00
%t0 = and i64 1, 1
call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 true) nounwind
%1 = call i64 @llvm.atomic.load.add.i64.p0i64(i64* %a0, i64 %t0) nounwind
call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 true) nounwind
ret void
}
declare void @llvm.memory.barrier(i1, i1, i1, i1, i1) nounwind
declare i32 @llvm.atomic.load.and.i32.p0i32(i32* nocapture, i32) nounwind
declare i64 @llvm.atomic.load.add.i64.p0i64(i64* nocapture, i64) nounwind