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