; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=kaveri -amdgpu-promote-alloca < %s | FileCheck %s
; CHECK-LABEL: @branch_ptr_var_same_alloca(
; CHECK: getelementptr inbounds [256 x [64 x i32]], [256 x [64 x i32]] addrspace(3)* @branch_ptr_var_same_alloca.alloca, i32 0, i32 %{{[0-9]+}}
; CHECK: if:
; CHECK: %arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32] addrspace(3)* %{{[0-9]+}}, i32 0, i32 %a
; CHECK: else:
; CHECK: %arrayidx1 = getelementptr inbounds [64 x i32], [64 x i32] addrspace(3)* %15, i32 0, i32 %b
; CHECK: endif:
; CHECK: %phi.ptr = phi i32 addrspace(3)* [ %arrayidx0, %if ], [ %arrayidx1, %else ]
; CHECK: store i32 0, i32 addrspace(3)* %phi.ptr, align 4
define amdgpu_kernel void @branch_ptr_var_same_alloca(i32 %a, i32 %b) #0 {
entry:
%alloca = alloca [64 x i32], align 4
br i1 undef, label %if, label %else
if:
%arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
br label %endif
else:
%arrayidx1 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %b
br label %endif
endif:
%phi.ptr = phi i32* [ %arrayidx0, %if ], [ %arrayidx1, %else ]
store i32 0, i32* %phi.ptr, align 4
ret void
}
; CHECK-LABEL: @branch_ptr_phi_alloca_null_0(
; CHECK: %phi.ptr = phi i32 addrspace(3)* [ %arrayidx0, %if ], [ null, %entry ]
define amdgpu_kernel void @branch_ptr_phi_alloca_null_0(i32 %a, i32 %b) #0 {
entry:
%alloca = alloca [64 x i32], align 4
br i1 undef, label %if, label %endif
if:
%arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
br label %endif
endif:
%phi.ptr = phi i32* [ %arrayidx0, %if ], [ null, %entry ]
store i32 0, i32* %phi.ptr, align 4
ret void
}
; CHECK-LABEL: @branch_ptr_phi_alloca_null_1(
; CHECK: %phi.ptr = phi i32 addrspace(3)* [ null, %entry ], [ %arrayidx0, %if ]
define amdgpu_kernel void @branch_ptr_phi_alloca_null_1(i32 %a, i32 %b) #0 {
entry:
%alloca = alloca [64 x i32], align 4
br i1 undef, label %if, label %endif
if:
%arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
br label %endif
endif:
%phi.ptr = phi i32* [ null, %entry ], [ %arrayidx0, %if ]
store i32 0, i32* %phi.ptr, align 4
ret void
}
; CHECK-LABEL: @one_phi_value(
; CHECK: getelementptr inbounds [256 x [64 x i32]], [256 x [64 x i32]] addrspace(3)* @one_phi_value.alloca, i32 0, i32 %14
; CHECK: %arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32] addrspace(3)* %{{[0-9]+}}, i32 0, i32 %a
; CHECK: br label %exit
; CHECK: %phi.ptr = phi i32 addrspace(3)* [ %arrayidx0, %entry ]
; CHECK: store i32 0, i32 addrspace(3)* %phi.ptr, align 4
define amdgpu_kernel void @one_phi_value(i32 %a) #0 {
entry:
%alloca = alloca [64 x i32], align 4
%arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
br label %exit
exit:
%phi.ptr = phi i32* [ %arrayidx0, %entry ]
store i32 0, i32* %phi.ptr, align 4
ret void
}
; CHECK-LABEL: @branch_ptr_alloca_unknown_obj(
; CHECK: %alloca = alloca [64 x i32], align 4
; CHECK: if:
; CHECK: %arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
; CHECK: else:
; CHECK: %arrayidx1 = call i32* @get_unknown_pointer()
; CHECK: endif:
; CHECK: %phi.ptr = phi i32* [ %arrayidx0, %if ], [ %arrayidx1, %else ]
; CHECK: store i32 0, i32* %phi.ptr, align 4
define amdgpu_kernel void @branch_ptr_alloca_unknown_obj(i32 %a, i32 %b) #0 {
entry:
%alloca = alloca [64 x i32], align 4
br i1 undef, label %if, label %else
if:
%arrayidx0 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 %a
br label %endif
else:
%arrayidx1 = call i32* @get_unknown_pointer()
br label %endif
endif:
%phi.ptr = phi i32* [ %arrayidx0, %if ], [ %arrayidx1, %else ]
store i32 0, i32* %phi.ptr, align 4
ret void
}
; kernel void ptr_induction_var_same_alloca(void)
; {
; int alloca[64];
; int i = 0;
; #pragma nounroll
; for (int* p = &alloca[2], *e = &alloca[48]; p != e; ++p, ++i)
; {
; *p = i;
; }
; }
; FIXME: This should be promotable. We need to use
; getUnderlyingObjects when looking at the icmp user.
; CHECK-LABEL: @ptr_induction_var_same_alloca(
; CHECK: %alloca = alloca [64 x i32], align 4
; CHECK: phi i32* [ %arrayidx, %entry ], [ %incdec.ptr, %for.body ]
define amdgpu_kernel void @ptr_induction_var_same_alloca() #0 {
entry:
%alloca = alloca [64 x i32], align 4
%arrayidx = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 2
%arrayidx1 = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 48
br label %for.body
for.cond.cleanup: ; preds = %for.body
ret void
for.body: ; preds = %for.body, %entry
%i.09 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%p.08 = phi i32* [ %arrayidx, %entry ], [ %incdec.ptr, %for.body ]
store i32 %i.09, i32* %p.08, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %p.08, i32 1
%inc = add nuw nsw i32 %i.09, 1
%cmp = icmp eq i32* %incdec.ptr, %arrayidx1
br i1 %cmp, label %for.cond.cleanup, label %for.body
}
; extern int* get_unknown_pointer(void);
; kernel void ptr_induction_var_alloca_unknown(void)
; {
; int alloca[64];
; int i = 0;
;
; for (int* p = &alloca[2], *e = get_unknown_pointer(); p != e; ++p, ++i)
; {
; *p = i;
; }
; }
; CHECK-LABEL: @ptr_induction_var_alloca_unknown(
; CHECK: %alloca = alloca [64 x i32], align 4
; CHECK: %p.08 = phi i32* [ %incdec.ptr, %for.body ], [ %arrayidx, %for.body.preheader ]
; CHECK: %cmp = icmp eq i32* %incdec.ptr, %call
define amdgpu_kernel void @ptr_induction_var_alloca_unknown() #0 {
entry:
%alloca = alloca [64 x i32], align 4
%arrayidx = getelementptr inbounds [64 x i32], [64 x i32]* %alloca, i32 0, i32 2
%call = tail call i32* @get_unknown_pointer() #2
%cmp.7 = icmp eq i32* %arrayidx, %call
br i1 %cmp.7, label %for.cond.cleanup, label %for.body.preheader
for.body.preheader: ; preds = %entry
br label %for.body
for.cond.cleanup.loopexit: ; preds = %for.body
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
ret void
for.body: ; preds = %for.body, %for.body.preheader
%i.09 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%p.08 = phi i32* [ %incdec.ptr, %for.body ], [ %arrayidx, %for.body.preheader ]
store i32 %i.09, i32* %p.08, align 4
%incdec.ptr = getelementptr inbounds i32, i32* %p.08, i32 1
%inc = add nuw nsw i32 %i.09, 1
%cmp = icmp eq i32* %incdec.ptr, %call
br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
}
declare i32* @get_unknown_pointer() #0
attributes #0 = { nounwind "amdgpu-waves-per-eu"="1,1" "amdgpu-flat-work-group-size"="1,256" }