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; RUN: opt < %s -instcombine -S | FileCheck %s
; These tests check the optimizations specific to
; pointers being relocated at a statepoint.
declare void @func()
define i1 @test_negative(i32 addrspace(1)* %p) gc "statepoint-example" {
entry:
%safepoint_token = tail call i32 (void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* %p)
%pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
%cmp = icmp eq i32 addrspace(1)* %pnew, null
ret i1 %cmp
; CHECK-LABEL: test_negative
; CHECK: %pnew = call i32 addrspace(1)*
; CHECK: ret i1 %cmp
}
define i1 @test_nonnull(i32 addrspace(1)* nonnull %p) gc "statepoint-example" {
entry:
%safepoint_token = tail call i32 (void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* %p)
%pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
%cmp = icmp eq i32 addrspace(1)* %pnew, null
ret i1 %cmp
; CHECK-LABEL: test_nonnull
; CHECK: ret i1 false
}
define i1 @test_null() gc "statepoint-example" {
entry:
%safepoint_token = tail call i32 (void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* null)
%pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
%cmp = icmp eq i32 addrspace(1)* %pnew, null
ret i1 %cmp
; CHECK-LABEL: test_null
; CHECK-NOT: %pnew
; CHECK: ret i1 true
}
define i1 @test_undef() gc "statepoint-example" {
entry:
%safepoint_token = tail call i32 (void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @func, i32 0, i32 0, i32 0, i32 addrspace(1)* undef)
%pnew = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
%cmp = icmp eq i32 addrspace(1)* %pnew, null
ret i1 %cmp
; CHECK-LABEL: test_undef
; CHECK-NOT: %pnew
; CHECK: ret i1 undef
}
declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()*, i32, i32, ...)
declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32, i32, i32) #3
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