llvm-mirror/test/CodeGen/X86/atomic-load-store-wide.ll

; RUN: llc < %s -march=x86 -verify-machineinstrs | FileCheck %s

; 64-bit load/store on x86-32
; FIXME: The generated code can be substantially improved.

define void @test1(i64* %ptr, i64 %val1) {
; CHECK: test1
; CHECK: cmpxchg8b
; CHECK-NEXT: jne
  store atomic i64 %val1, i64* %ptr seq_cst, align 8
  ret void
}

define i64 @test2(i64* %ptr) {
; CHECK: test2
; CHECK: cmpxchg8b
  %val = load atomic i64* %ptr seq_cst, align 8
  ret i64 %val
}
Fix PR15355 - Clear 'mayStore' flag when loading from the atomic variable before the spin loop - Clear kill flag from one use to multiple use in registers forming the address to that atomic variable - don't use a physical register as live-in register in BB (neither entry nor landing pad.) by copying it into virtual register (patch by Cameron Zwarich) llvm-svn: 176538 2013-03-06 01:17:04 +01:00			`; RUN: llc < %s -march=x86 -verify-machineinstrs \| FileCheck %s`
Hook up 64-bit atomic load/store on x86-32. I plan to write more efficient implementations eventually. llvm-svn: 138505 2011-08-25 00:33:28 +02:00
			`; 64-bit load/store on x86-32`
			`; FIXME: The generated code can be substantially improved.`

			`define void @test1(i64* %ptr, i64 %val1) {`
			`; CHECK: test1`
			`; CHECK: cmpxchg8b`
			`; CHECK-NEXT: jne`
Error out on CodeGen of unaligned load/store. Fix test so it isn't accidentally testing that case. llvm-svn: 139641 2011-09-13 22:50:54 +02:00			`store atomic i64 %val1, i64* %ptr seq_cst, align 8`
Hook up 64-bit atomic load/store on x86-32. I plan to write more efficient implementations eventually. llvm-svn: 138505 2011-08-25 00:33:28 +02:00			`ret void`
			`}`

			`define i64 @test2(i64* %ptr) {`
			`; CHECK: test2`
			`; CHECK: cmpxchg8b`
Error out on CodeGen of unaligned load/store. Fix test so it isn't accidentally testing that case. llvm-svn: 139641 2011-09-13 22:50:54 +02:00			`%val = load atomic i64* %ptr seq_cst, align 8`
Hook up 64-bit atomic load/store on x86-32. I plan to write more efficient implementations eventually. llvm-svn: 138505 2011-08-25 00:33:28 +02:00			`ret i64 %val`
			`}`