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| author | Philip Reames <listmail@philipreames.com> | 2019-03-06 19:27:13 +0000 |
|---|---|---|
| committer | Philip Reames <listmail@philipreames.com> | 2019-03-06 19:27:13 +0000 |
| commit | 9549f7560f67c3a4c8319474455116ca68906fb8 (patch) | |
| tree | e7e39a5491005dea32b758468f838fe91b6c2e8b /llvm/test | |
| parent | eacde7d2b021a7f3b11e408b2ed34317a5491330 (diff) | |
| download | bcm5719-llvm-9549f7560f67c3a4c8319474455116ca68906fb8.tar.gz bcm5719-llvm-9549f7560f67c3a4c8319474455116ca68906fb8.zip | |
[AtomicExpand] Allow libcall expansion for non-zero address spaces (try 2)
Restore a reverted commit, with the silly mistake fixed. Sorry for the previous breakage.
Be consistent about how we treat atomics in non-zero address spaces. If we get to the backend, we tend to lower them as if in address space 0. Do the same if we need to insert a libcall instead.
Differential Revision: https://reviews.llvm.org/D58760
llvm-svn: 355540
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/AtomicExpand/X86/expand-atomic-libcall.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/llvm/test/Transforms/AtomicExpand/X86/expand-atomic-libcall.ll b/llvm/test/Transforms/AtomicExpand/X86/expand-atomic-libcall.ll new file mode 100644 index 00000000000..0af14c5f43c --- /dev/null +++ b/llvm/test/Transforms/AtomicExpand/X86/expand-atomic-libcall.ll @@ -0,0 +1,34 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -S -mtriple=i686-linux-gnu -atomic-expand %s | FileCheck %s + + +define i256 @atomic_load256_libcall(i256* %ptr) nounwind { +; CHECK-LABEL: @atomic_load256_libcall( +; CHECK-NEXT: [[TMP1:%.*]] = bitcast i256* [[PTR:%.*]] to i8* +; CHECK-NEXT: [[TMP2:%.*]] = alloca i256, align 8 +; CHECK-NEXT: [[TMP3:%.*]] = bitcast i256* [[TMP2]] to i8* +; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 32, i8* [[TMP3]]) +; CHECK-NEXT: call void @__atomic_load(i64 32, i8* [[TMP1]], i8* [[TMP3]], i32 0) +; CHECK-NEXT: [[TMP4:%.*]] = load i256, i256* [[TMP2]], align 8 +; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[TMP3]]) +; CHECK-NEXT: ret i256 [[TMP4]] +; + %result = load atomic i256, i256* %ptr unordered, align 16 + ret i256 %result +} + +define i256 @atomic_load256_libcall_as1(i256 addrspace(1)* %ptr) nounwind { +; CHECK-LABEL: @atomic_load256_libcall_as1( +; CHECK-NEXT: [[TMP1:%.*]] = bitcast i256 addrspace(1)* [[PTR:%.*]] to i8 addrspace(1)* +; CHECK-NEXT: [[TMP2:%.*]] = addrspacecast i8 addrspace(1)* [[TMP1]] to i8* +; CHECK-NEXT: [[TMP3:%.*]] = alloca i256, align 8 +; CHECK-NEXT: [[TMP4:%.*]] = bitcast i256* [[TMP3]] to i8* +; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 32, i8* [[TMP4]]) +; CHECK-NEXT: call void @__atomic_load(i64 32, i8* [[TMP2]], i8* [[TMP4]], i32 0) +; CHECK-NEXT: [[TMP5:%.*]] = load i256, i256* [[TMP3]], align 8 +; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 32, i8* [[TMP4]]) +; CHECK-NEXT: ret i256 [[TMP5]] +; + %result = load atomic i256, i256 addrspace(1)* %ptr unordered, align 16 + ret i256 %result +} |
