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author | Bill Wendling <isanbard@gmail.com> | 2013-12-07 09:36:35 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2013-12-07 09:36:35 +0000 |
commit | 31928dfc03d92322f9f2fb1c4a7878024d3cc9d1 (patch) | |
tree | fc59138e75c83f532db6534d2f24eb5a84aa1954 | |
parent | c217165f1325358669ea5bdb6adfcaeb0c2ac291 (diff) | |
download | external_llvm-31928dfc03d92322f9f2fb1c4a7878024d3cc9d1.zip external_llvm-31928dfc03d92322f9f2fb1c4a7878024d3cc9d1.tar.gz external_llvm-31928dfc03d92322f9f2fb1c4a7878024d3cc9d1.tar.bz2 |
Merging r196269:
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r196269 | jamesm | 2013-12-03 03:23:11 -0800 (Tue, 03 Dec 2013) | 5 lines
Addrspacecasts are no-ops on ARM.
Testcase added.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@196651 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/ARM/ARMISelLowering.h | 6 | ||||
-rw-r--r-- | test/CodeGen/ARM/addrspacecast.ll | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.h b/lib/Target/ARM/ARMISelLowering.h index f195381..90facdd 100644 --- a/lib/Target/ARM/ARMISelLowering.h +++ b/lib/Target/ARM/ARMISelLowering.h @@ -363,6 +363,12 @@ namespace llvm { /// be used for loads / stores from the global. virtual unsigned getMaximalGlobalOffset() const; + /// Returns true if a cast between SrcAS and DestAS is a noop. + virtual bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const { + // Addrspacecasts are always noops. + return true; + } + /// createFastISel - This method returns a target specific FastISel object, /// or null if the target does not support "fast" ISel. virtual FastISel *createFastISel(FunctionLoweringInfo &funcInfo, diff --git a/test/CodeGen/ARM/addrspacecast.ll b/test/CodeGen/ARM/addrspacecast.ll new file mode 100644 index 0000000..2e98ba5 --- /dev/null +++ b/test/CodeGen/ARM/addrspacecast.ll @@ -0,0 +1,7 @@ +; RUN: llc < %s -march=arm + +; Check that codegen for an addrspace cast succeeds without error. +define <4 x i32 addrspace(1)*> @f (<4 x i32*> %x) { + %1 = addrspacecast <4 x i32*> %x to <4 x i32 addrspace(1)*> + ret <4 x i32 addrspace(1)*> %1 +} |