AMDGPU: Stop reporting is-noop addrspacecast for constant 32-bit
This will require something to cast. Before this would eliminate
the cast, which would result in copies of $noreg.
llvm-svn: 341803
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 9359d53..520ed141 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -1120,8 +1120,7 @@
static bool isFlatGlobalAddrSpace(unsigned AS) {
return AS == AMDGPUAS::GLOBAL_ADDRESS ||
AS == AMDGPUAS::FLAT_ADDRESS ||
- AS == AMDGPUAS::CONSTANT_ADDRESS ||
- AS == AMDGPUAS::CONSTANT_ADDRESS_32BIT;
+ AS == AMDGPUAS::CONSTANT_ADDRESS;
}
bool SITargetLowering::isNoopAddrSpaceCast(unsigned SrcAS,
diff --git a/llvm/test/CodeGen/AMDGPU/invalid-addrspacecast.ll b/llvm/test/CodeGen/AMDGPU/invalid-addrspacecast.ll
index 31f2fbc..2f8e022 100644
--- a/llvm/test/CodeGen/AMDGPU/invalid-addrspacecast.ll
+++ b/llvm/test/CodeGen/AMDGPU/invalid-addrspacecast.ll
@@ -6,3 +6,10 @@
store volatile i32 0, i32 addrspace(1)* %stof
ret void
}
+
+; ERROR: error: <unknown>:0:0: in function use_constant32bit_to_flat_addrspacecast void (i32 addrspace(6)*): invalid addrspacecast
+define amdgpu_kernel void @use_constant32bit_to_flat_addrspacecast(i32 addrspace(6)* %ptr) #0 {
+ %stof = addrspacecast i32 addrspace(6)* %ptr to i32*
+ store volatile i32 7, i32* %stof
+ ret void
+}