/// node.
void SelectionDAGBuilder::visitTargetIntrinsic(const CallInst &I,
unsigned Intrinsic) {
- bool HasChain = !I.doesNotAccessMemory();
- bool OnlyLoad = HasChain && I.onlyReadsMemory();
+ // Ignore the callsite's attributes. A specific call site may be marked with
+ // readnone, but the lowering code will expect the chain based on the
+ // definition.
+ const Function *F = I.getCalledFunction();
+ bool HasChain = !F->doesNotAccessMemory();
+ bool OnlyLoad = HasChain && F->onlyReadsMemory();
// Build the operand list.
SmallVector<SDValue, 8> Ops;
-; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck %s
-; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck %s
-; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
+; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
-; FUNC-LABEL: {{^}}s_getreg_test:
-; CHECK: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
+; GCN-LABEL: {{^}}s_getreg_test:
+; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
define void @s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
- %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574) #0
+ %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574)
+ %lds_size_bytes = shl i32 %lds_size_64dwords, 8
+ store i32 %lds_size_bytes, i32 addrspace(1)* %out
+ ret void
+}
+
+; Call site has additional readnone knowledge.
+; GCN-LABEL: {{^}}readnone_s_getreg_test:
+; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
+define void @readnone_s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
+ %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574) #1
%lds_size_bytes = shl i32 %lds_size_64dwords, 8
store i32 %lds_size_bytes, i32 addrspace(1)* %out
ret void
declare i32 @llvm.amdgcn.s.getreg(i32) #0
-attributes #0 = { nounwind readonly}
+attributes #0 = { nounwind readonly }
+attributes #1 = { nounwind readnone }