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Revert "[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors"

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It is breaking the build on the buildbots but works fine on my machine, I revert
while trying to understand what happens (it appears to depend on the compiler used
to build, I probably used a C++11 feature that is not perfectly supported by some
of the buildbots).

This reverts commit feb3176c4d006f99af8b40373abd56215a90e7cc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217973 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Robin Morisset
2014-09-17 18:09:13 +00:00
parent 07c9ae576c
commit e2ff4e489b
3 changed files with 4 additions and 50 deletions
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23
test/CodeGen/ARM/atomic-load-store.ll
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@@ -3,8 +3,6 @@
; RUN: llc < %s -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s -check-prefix=THUMBTWO
; RUN: llc < %s -mtriple=thumbv6-apple-ios | FileCheck %s -check-prefix=THUMBONE
; RUN: llc < %s -mtriple=armv4-apple-ios | FileCheck %s -check-prefix=ARMV4
; RUN: llc < %s -mtriple=armv6-apple-ios | FileCheck %s -check-prefix=ARMV6
; RUN: llc < %s -mtriple=thumbv7m-apple-ios | FileCheck %s -check-prefix=THUMBM
define void @test1(i32* %ptr, i32 %val1) {
; ARM-LABEL: test1
@@ -17,14 +15,6 @@ define void @test1(i32* %ptr, i32 %val1) {
; THUMBTWO: dmb {{ish$}}
; THUMBTWO-NEXT: str
; THUMBTWO-NEXT: dmb {{ish$}}
; ARMV6-LABEL: test1
; ARMV6: mcr p15, #0, {{r[0-9]*}}, c7, c10, #5
; ARMV6: str
; ARMV6: mcr p15, #0, {{r[0-9]*}}, c7, c10, #5
; THUMBM-LABEL: test1
; THUMBM: dmb sy
; THUMBM: str
; THUMBM: dmb sy
store atomic i32 %val1, i32* %ptr seq_cst, align 4
ret void
}
@@ -38,12 +28,6 @@ define i32 @test2(i32* %ptr) {
; THUMBTWO-LABEL: test2
; THUMBTWO: ldr
; THUMBTWO-NEXT: dmb {{ish$}}
; ARMV6-LABEL: test2
; ARMV6: ldr
; ARMV6: mcr p15, #0, {{r[0-9]*}}, c7, c10, #5
; THUMBM-LABEL: test2
; THUMBM: ldr
; THUMBM: dmb sy
%val = load atomic i32* %ptr seq_cst, align 4
ret i32 %val
}
@@ -71,11 +55,6 @@ define void @test3(i8* %ptr1, i8* %ptr2) {
; THUMBONE-NOT: dmb
; THUMBONE: strb
; THUMBONE-NOT: dmb
; ARMV6-LABEL: test3
; ARMV6-NOT: mcr
; THUMBM-LABEL: test3
; THUMBM-NOT: dmb sy
%val = load atomic i8* %ptr1 unordered, align 1
store atomic i8 %val, i8* %ptr2 unordered, align 1
ret void
@@ -85,8 +64,6 @@ define void @test4(i8* %ptr1, i8* %ptr2) {
; THUMBONE-LABEL: test4
; THUMBONE: ___sync_val_compare_and_swap_1
; THUMBONE: ___sync_lock_test_and_set_1
; ARMV6-LABEL: test4
; THUMBM-LABEL: test4
%val = load atomic i8* %ptr1 seq_cst, align 1
store atomic i8 %val, i8* %ptr2 seq_cst, align 1
ret void